From 334ffc15b1c2e8ed50df012ae7b37876f7d18128 Mon Sep 17 00:00:00 2001
From: andig <andi@evcc.io>
Date: Sun, 14 Apr 2024 09:50:08 +0200
Subject: [PATCH] Log Viewer: Allow retrieving logs from ring buffer (#13330)

---
 assets/css/app.css                            |  52 ++-
 assets/js/auth.js                             |  11 +-
 assets/js/components/Config/GeneralConfig.vue |  49 ++-
 assets/js/components/HelpModal.vue            |  25 +-
 assets/js/components/LoginModal.vue           |  41 +-
 assets/js/components/MaterialIcon/Play.vue    |  17 +
 assets/js/components/MaterialIcon/Record.vue  |  17 +
 assets/js/components/Notifications.vue        |   8 +-
 assets/js/components/OfflineIndicator.vue     |  14 +-
 assets/js/components/Savings.vue              |  10 +-
 assets/js/components/TelemetrySettings.vue    |   9 +-
 assets/js/components/TopHeader.vue            |  16 +-
 assets/js/components/TopNavigation.vue        |   6 +-
 assets/js/i18n.js                             |   6 +
 assets/js/router.js                           |  29 +-
 assets/js/views/App.vue                       |  17 +-
 assets/js/views/Config.vue                    | 359 ++++++++++--------
 assets/js/views/Log.vue                       | 321 ++++++++++++++++
 assets/js/views/Main.vue                      |  16 +-
 .../js/{components => views}/StartupError.vue |  13 +-
 cmd/root.go                                   |  15 +-
 core/keys/site.go                             |   1 +
 core/site.go                                  |   1 +
 i18n/de.toml                                  |  34 +-
 i18n/en.toml                                  |  31 +-
 server/http.go                                |  46 ++-
 server/http_site_handler.go                   |  34 ++
 tests/auth.spec.js                            |  19 +-
 tests/config.spec.js                          |  26 +-
 tests/evcc.js                                 |   5 +-
 tests/logs.spec.js                            |  49 +++
 tests/modals.spec.js                          |  31 +-
 util/auth/auth.go                             |  18 -
 util/auth/auth_test.go                        |   4 -
 util/log.go                                   |  42 +-
 util/logstash/element.go                      |  25 ++
 util/logstash/levels.go                       |  27 ++
 util/logstash/log.go                          | 110 ++++++
 util/logstash/log_test.go                     |  33 ++
 util/monitor.go                               |   1 +
 40 files changed, 1231 insertions(+), 357 deletions(-)
 create mode 100644 assets/js/components/MaterialIcon/Play.vue
 create mode 100644 assets/js/components/MaterialIcon/Record.vue
 create mode 100644 assets/js/views/Log.vue
 rename assets/js/{components => views}/StartupError.vue (92%)
 create mode 100644 tests/logs.spec.js
 create mode 100644 util/logstash/element.go
 create mode 100644 util/logstash/levels.go
 create mode 100644 util/logstash/log.go
 create mode 100644 util/logstash/log_test.go

diff --git a/assets/css/app.css b/assets/css/app.css
index 05c212c288..15893d6e99 100644
--- a/assets/css/app.css
+++ b/assets/css/app.css
@@ -31,6 +31,8 @@
 	--evcc-dark-yellow: #bbb400;
 	--evcc-orange: #ff9000;
 	--evcc-orange-rgb: 255, 144, 0;
+	--evcc-red: #fc440f;
+	--evcc-red-rgb: 252, 68, 15;
 	--bs-gray-deep: #010322;
 	--bs-gray-dark: #28293e;
 	--bs-gray-medium: #93949e;
@@ -63,12 +65,16 @@
 	--bs-warning: var(--evcc-orange);
 	--bs-warning-rgb: var(--evcc-orange-rgb);
 
+	--bs-danger: var(--evcc-red);
+	--bs-danger-rgb: var(--evcc-red-rgb);
+
 	--bs-body-font-size: 14px;
 	--bs-font-sans-serif: Montserrat, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue",
 		Arial, "Noto Sans", "Liberation Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji",
 		"Segoe UI Symbol", "Noto Color Emoji";
 	--bs-success: var(--evcc-primary);
 	--bs-success-rgb: var(--bs-primary-rgb);
+	--bs-code-color: var(--evcc-darkest-green);
 }
 
 :root.dark {
@@ -82,6 +88,8 @@
 	--evcc-accent3: var(--evcc-darker-green);
 	--bs-primary: var(--evcc-dark-green);
 	--bs-border-color-translucent: rgba(255, 255, 255, 0.175);
+	--bs-code-color: var(--evcc-dark-green);
+	color-scheme: dark;
 }
 
 html {
@@ -229,11 +237,20 @@ a:hover {
 	--bs-btn-line-height: 2;
 }
 
+.btn-outline-secondary {
+	--bs-btn-color: var(--evcc-default-text);
+	--bs-btn-border-color: var(--evcc-default-text);
+	--bs-btn-hover-bg: transparent;
+	--bs-btn-hover-color: var(--bs-gray-medium);
+	--bs-btn-hover-border-color: var(--bs-gray-medium);
+}
+
 .dark .btn-outline-secondary {
 	--bs-btn-color: var(--bs-gray-bright);
 	--bs-btn-border-color: var(--bs-gray-bright);
-	--bs-btn-hover-bg: var(--bs-gray-bright);
-	--bs-btn-hover-color: var(--bs-gray-dark);
+	--bs-btn-hover-bg: transparent;
+	--bs-btn-hover-color: var(--bs-gray-medium);
+	--bs-btn-hover-border-color: var(--bs-gray-medium);
 }
 
 .accordion {
@@ -298,6 +315,9 @@ a:hover {
 	.modal-xl {
 		--bs-modal-width: 850px;
 	}
+	.w-lg-auto {
+		width: auto !important;
+	}
 }
 
 .modal-backdrop.show {
@@ -376,6 +396,10 @@ small {
 	background-color: var(--bs-primary);
 	color: var(--bs-white);
 }
+.form-select {
+	overflow: hidden;
+	text-overflow: ellipsis;
+}
 
 .dark .dropdown-menu {
 	box-shadow: 0 0 8px var(--evcc-background);
@@ -398,6 +422,7 @@ small {
 	--bs-table-color: var(--evcc-default-text);
 	--bs-table-border-color: var(--evcc-gray);
 }
+
 .nav-tabs .nav-link {
 	color: var(--evcc-gray) !important;
 }
@@ -438,13 +463,21 @@ input::-webkit-datetime-edit {
 }
 
 .form-control {
-	background-color: var(--evcc-box);
 	color: var(--evcc-default-text);
 }
 .form-control:disabled {
 	color: var(--bs-gray-dark);
 }
 
+.dark .form-control {
+	background-color: var(--evcc-box);
+	color: var(--evcc-default-text);
+}
+
+.dark .form-control::placeholder {
+	color: var(--bs-gray-medium);
+}
+
 input[type="time"]::-webkit-calendar-picker-indicator {
 	display: none;
 }
@@ -515,3 +548,16 @@ html.app .modal-dialog {
 .btn-neutral:hover {
 	outline: revert;
 }
+
+.round-box {
+	border-radius: 1rem;
+	box-shadow: 0 0 0 0 var(--evcc-gray-50);
+	color: var(--evcc-default-text);
+	background: var(--evcc-box);
+	padding: 1rem;
+	border: 1px solid var(--evcc-gray-50);
+	transition: box-shadow var(--evcc-transition-fast) linear;
+}
+.round-box:hover {
+	border-color: var(--evcc-gray);
+}
diff --git a/assets/js/auth.js b/assets/js/auth.js
index ba85b006db..054c0aa8b7 100644
--- a/assets/js/auth.js
+++ b/assets/js/auth.js
@@ -5,6 +5,7 @@ import Modal from "bootstrap/js/dist/modal";
 const auth = reactive({
   configured: true,
   loggedIn: false,
+  nextUrl: null,
 });
 
 export async function updateAuthStatus() {
@@ -28,6 +29,7 @@ export async function logout() {
   try {
     await api.post("/auth/logout");
     await updateAuthStatus();
+    auth.nextUrl = null;
   } catch (e) {
     console.log("unable to logout", e);
   }
@@ -41,7 +43,14 @@ export function isConfigured() {
   return auth.configured;
 }
 
-export function openLoginModal() {
+export function getAndClearNextUrl() {
+  const nextUrl = auth.nextUrl;
+  auth.nextUrl = null;
+  return nextUrl;
+}
+
+export function openLoginModal(nextUrl = null) {
+  auth.nextUrl = nextUrl;
   const modal = Modal.getOrCreateInstance(document.getElementById("loginModal"));
   modal.show();
 }
diff --git a/assets/js/components/Config/GeneralConfig.vue b/assets/js/components/Config/GeneralConfig.vue
index ee4eba811e..6b90345de7 100644
--- a/assets/js/components/Config/GeneralConfig.vue
+++ b/assets/js/components/Config/GeneralConfig.vue
@@ -1,5 +1,5 @@
 <template>
-	<div class="group pt-4 px-4 pb-1">
+	<div class="group round-box pt-4 px-4 pb-1">
 		<dl class="row" data-testid="generalconfig-title">
 			<dt class="col-sm-4">Title</dt>
 			<dd class="col-sm-8">
@@ -14,7 +14,19 @@
 				<TitleModal ref="titleModal" @changed="load" />
 			</dd>
 		</dl>
-		<dl class="row">
+		<dl class="row" data-testid="generalconfig-password">
+			<dt class="col-sm-4">Password</dt>
+			<dd class="col-sm-8">
+				*******
+				<a
+					href="#"
+					class="ms-2 d-inline-block text-muted"
+					@click.prevent="openModal('passwordModal')"
+					>edit</a
+				>
+			</dd>
+		</dl>
+		<dl class="row" data-testid="generalconfig-telemetry">
 			<dt class="col-sm-4">Telemetry</dt>
 			<dd class="col-sm-8">
 				{{ telemetryEnabled ? "on" : "off" }}
@@ -27,17 +39,17 @@
 				</a>
 			</dd>
 		</dl>
-		<dl class="row wip" data-testid="generalconfig-password">
-			<dt class="col-sm-4">Password</dt>
+		<dl class="row" data-testid="generalconfig-experimental">
+			<dt class="col-sm-4">Experimental</dt>
 			<dd class="col-sm-8">
-				*******
-				<!-- TODO: update this once auth is released -->
+				{{ hiddenFeatures ? "on" : "off" }}
 				<a
 					href="#"
 					class="ms-2 d-inline-block text-muted"
-					@click.prevent="todo() /* openModal('passwordModal')*/"
-					>edit</a
+					@click.prevent="openModal('globalSettingsModal')"
 				>
+					change
+				</a>
 			</dd>
 		</dl>
 		<dl class="row wip">
@@ -93,6 +105,9 @@ export default {
 		telemetryEnabled() {
 			return settings.telemetry === true;
 		},
+		hiddenFeatures() {
+			return settings.hiddenFeatures === true;
+		},
 	},
 	methods: {
 		async changed() {
@@ -124,29 +139,13 @@ export default {
 
 <style scoped>
 .group {
-	border-radius: 1rem;
-	box-shadow: 0 0 0 0 var(--evcc-gray-50);
-	color: var(--evcc-default-text);
-	background: var(--evcc-box);
-	padding: 1rem;
 	display: grid;
 	grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
-	min-height: 10rem;
 	margin-bottom: 5rem;
-	border: 1px solid var(--evcc-gray-50);
-	transition: box-shadow var(--evcc-transition-fast) linear;
 }
-
-.group:hover {
-	border-color: var(--evcc-gray);
-}
-
-.group:focus-within {
-	box-shadow: 0 0 1rem 0 var(--evcc-gray-50);
-}
-
 .wip {
 	opacity: 0.2;
+	display: none !important;
 }
 dt {
 	margin-bottom: 0.5rem;
diff --git a/assets/js/components/HelpModal.vue b/assets/js/components/HelpModal.vue
index e367d56885..fe7f2e7408 100644
--- a/assets/js/components/HelpModal.vue
+++ b/assets/js/components/HelpModal.vue
@@ -26,7 +26,7 @@
 							class="d-block d-sm-flex justify-content-between align-items-stretch mb-4"
 						>
 							<a
-								href="https://docs.evcc.io/"
+								:href="docsUrl"
 								target="_blank"
 								class="btn btn-outline-primary w-100 w-sm-auto flex-grow-1 mb-3 mb-sm-0 me-sm-3"
 								type="button"
@@ -46,6 +46,16 @@
 						<p>
 							{{ $t("help.secondaryActions") }}
 						</p>
+						<div
+							class="d-block d-sm-flex justify-content-between align-items-baseline mb-3"
+						>
+							<p class="flex-sm-grow-1 opacity-50 me-sm-3">
+								{{ $t("help.logsDescription") }}
+							</p>
+							<router-link to="/log" class="btn btn-outline-primary text-nowrap">
+								{{ $t("help.logsButton") }}
+							</router-link>
+						</div>
 						<div
 							class="d-block d-sm-flex justify-content-between align-items-baseline mb-3"
 						>
@@ -56,11 +66,11 @@
 								href="https://github.com/evcc-io/evcc/issues"
 								target="_blank"
 								class="btn btn-outline-primary text-nowrap"
-								type="button"
 							>
 								{{ $t("help.issueButton") }}
 							</a>
 						</div>
+
 						<div
 							class="d-block d-sm-flex justify-content-between align-items-baseline mb-3"
 						>
@@ -128,11 +138,17 @@
 
 <script>
 import Modal from "bootstrap/js/dist/modal";
+import { docsPrefix } from "../i18n";
 import api from "../api";
 
 export default {
 	name: "HelpModal",
 	props: {},
+	computed: {
+		docsUrl() {
+			return `${docsPrefix()}/`;
+		},
+	},
 	methods: {
 		openHelpModal() {
 			const modal = Modal.getOrCreateInstance(document.getElementById("helpModal"));
@@ -144,10 +160,7 @@ export default {
 		},
 		async restartConfirmed() {
 			try {
-				await api.post("shutdown");
-				alert(
-					"Server was stopped successfully. Waiting for the operating system to start evcc again."
-				);
+				await api.post("/system/shutdown");
 			} catch (e) {
 				alert("Unabled to restart server.");
 			}
diff --git a/assets/js/components/LoginModal.vue b/assets/js/components/LoginModal.vue
index 430d50501c..e3ccb1b782 100644
--- a/assets/js/components/LoginModal.vue
+++ b/assets/js/components/LoginModal.vue
@@ -8,8 +8,6 @@
 		@closed="closed"
 	>
 		<form v-if="modalVisible" @submit.prevent="login">
-			<p v-if="error" class="text-danger">{{ $t("loginModal.error") }}{{ error }}</p>
-
 			<div class="mb-4">
 				<label for="loginPassword" class="col-form-label">
 					<div class="w-100">
@@ -27,9 +25,25 @@
 				/>
 			</div>
 
+			<p v-if="error" class="text-danger my-4">{{ $t("loginModal.error") }}{{ error }}</p>
+
 			<button type="submit" class="btn btn-primary w-100 mb-3" :disabled="loading">
+				<span
+					v-if="loading"
+					class="spinner-border spinner-border-sm"
+					role="status"
+					aria-hidden="true"
+				></span>
 				{{ $t("loginModal.login") }}
 			</button>
+			<a
+				v-if="resetHint"
+				class="text-muted my-1 d-block text-center"
+				:href="resetUrl"
+				target="_blank"
+			>
+				{{ $t("loginModal.reset") }}
+			</a>
 		</form>
 	</GenericModal>
 </template>
@@ -38,7 +52,8 @@
 import GenericModal from "./GenericModal.vue";
 import Modal from "bootstrap/js/dist/modal";
 import api from "../api";
-import { updateAuthStatus } from "../auth";
+import { updateAuthStatus, getAndClearNextUrl } from "../auth";
+import { docsPrefix } from "../i18n";
 
 export default {
 	name: "LoginModal",
@@ -48,9 +63,15 @@ export default {
 			modalVisible: false,
 			password: "",
 			loading: false,
+			resetHint: false,
 			error: "",
 		};
 	},
+	computed: {
+		resetUrl() {
+			return `${docsPrefix()}/docs/faq#password-reset`;
+		},
+	},
 	methods: {
 		open() {
 			this.modalVisible = true;
@@ -60,6 +81,7 @@ export default {
 			this.password = "";
 			this.loading = false;
 			this.error = "";
+			this.resetHint = false;
 		},
 		focus() {
 			console.log(this.$refs.password);
@@ -70,21 +92,24 @@ export default {
 		},
 		async login() {
 			this.loading = true;
-			this.error = "";
 
 			try {
 				const data = { password: this.password };
 				const res = await api.post("/auth/login", data, {
 					validateStatus: (code) => [200, 401].includes(code),
 				});
+				this.resetHint = false;
+				this.error = "";
 				if (res.status === 200) {
 					this.closeModal();
 					await updateAuthStatus();
-					this.$router.push({ path: "/config" });
+					const target = getAndClearNextUrl();
+					if (target) this.$router.push(target);
 					this.password = "";
 				}
 				if (res.status === 401) {
 					this.error = this.$t("loginModal.invalid");
+					this.resetHint = true;
 				}
 			} catch (err) {
 				console.error(err);
@@ -96,3 +121,9 @@ export default {
 	},
 };
 </script>
+<style scoped>
+form {
+	/* remove body padding due to minimal content */
+	margin-top: -1rem;
+}
+</style>
diff --git a/assets/js/components/MaterialIcon/Play.vue b/assets/js/components/MaterialIcon/Play.vue
new file mode 100644
index 0000000000..af5016df1d
--- /dev/null
+++ b/assets/js/components/MaterialIcon/Play.vue
@@ -0,0 +1,17 @@
+<template>
+	<svg :style="svgStyle" viewBox="0 0 24 24">
+		<path
+			fill="currentColor"
+			d="M8 17.175V6.825q0-.425.3-.713t.7-.287q.125 0 .263.037t.262.113l8.15 5.175q.225.15.338.375t.112.475t-.112.475t-.338.375l-8.15 5.175q-.125.075-.262.113T9 18.175q-.4 0-.7-.288t-.3-.712m2-1.825L15.25 12L10 8.65z"
+		/>
+	</svg>
+</template>
+
+<script>
+import icon from "../../mixins/icon";
+
+export default {
+	name: "Play",
+	mixins: [icon],
+};
+</script>
diff --git a/assets/js/components/MaterialIcon/Record.vue b/assets/js/components/MaterialIcon/Record.vue
new file mode 100644
index 0000000000..32f8217885
--- /dev/null
+++ b/assets/js/components/MaterialIcon/Record.vue
@@ -0,0 +1,17 @@
+<template>
+	<svg :style="svgStyle" viewBox="0 0 24 24">
+		<path
+			fill="currentColor"
+			d="M12 17q-2.075 0-3.537-1.463T7 12t1.463-3.537T12 7t3.538 1.463T17 12t-1.463 3.538T12 17m8-5q0-1.05-.25-2.025t-.725-1.85q-.2-.375-.162-.8t.387-.675t.775-.15t.625.45q.65 1.125 1 2.388T22 12t-.363 2.675t-1.012 2.4q-.2.35-.612.438t-.763-.163t-.4-.675t.15-.8q.475-.875.738-1.838T20 12m-8-8q-1.075 0-2.037.263T8.125 5q-.375.2-.8.15t-.675-.4t-.162-.763t.437-.612q1.125-.65 2.4-1.012T12 2t2.675.363t2.4 1.012q.375.2.463.613t-.163.762t-.675.4t-.8-.15q-.875-.475-1.85-.737T12 4m-8 8q0 1.075.263 2.038T5 15.875q.2.375.15.8t-.4.675t-.763.163t-.612-.438q-.65-1.125-1.012-2.4T2 12t.35-2.662t1-2.388q.2-.35.625-.45t.775.15t.388.675t-.163.8Q4.5 9 4.25 9.975T4 12m8 8q1.05 0 2.025-.25t1.85-.725q.375-.2.788-.15t.662.4t.163.763t-.438.612q-1.125.65-2.387 1T12 22t-2.662-.35t-2.388-1q-.35-.2-.45-.625t.15-.775t.675-.387t.8.162q.875.475 1.85.725T12 20"
+		/>
+	</svg>
+</template>
+
+<script>
+import icon from "../../mixins/icon";
+
+export default {
+	name: "Record",
+	mixins: [icon],
+};
+</script>
diff --git a/assets/js/components/Notifications.vue b/assets/js/components/Notifications.vue
index ed6be30139..3fe9b216d8 100644
--- a/assets/js/components/Notifications.vue
+++ b/assets/js/components/Notifications.vue
@@ -6,6 +6,7 @@
 			data-bs-toggle="modal"
 			data-bs-target="#notificationModal"
 			class="btn btn-sm btn-link text-decoration-none link-light text-nowrap"
+			data-testid="notification-icon"
 		>
 			<shopicon-regular-exclamationtriangle
 				:class="iconClass"
@@ -65,12 +66,15 @@
 							</p>
 						</div>
 					</div>
-					<div class="modal-footer">
+					<div class="modal-footer d-flex justify-content-between gap-3">
+						<router-link to="/log" class="btn btn-outline-secondary">
+							{{ $t("notifications.logs") }}
+						</router-link>
 						<button
 							type="button"
 							data-bs-dismiss="modal"
 							aria-label="Close"
-							class="btn btn-outline-secondary"
+							class="btn btn-outline-primary"
 							@click="clear"
 						>
 							{{ $t("notifications.dismissAll") }}
diff --git a/assets/js/components/OfflineIndicator.vue b/assets/js/components/OfflineIndicator.vue
index 9801735a1f..4b3e457698 100644
--- a/assets/js/components/OfflineIndicator.vue
+++ b/assets/js/components/OfflineIndicator.vue
@@ -5,9 +5,6 @@
 	>
 		<shopicon-regular-cloud class="me-2"></shopicon-regular-cloud>
 		{{ $t("offline.message") }}
-		<button class="btn btn-sm btn-link text-dark" @click="reload">
-			{{ $t("offline.reload") }}
-		</button>
 	</div>
 </template>
 
@@ -16,10 +13,11 @@ import "@h2d2/shopicons/es/regular/cloud";
 
 export default {
 	name: "OfflineIndicator",
-	methods: {
-		reload() {
-			window.location.reload();
-		},
-	},
 };
 </script>
+<style>
+.fixed-bottom {
+	/* $zindex-toast https://getbootstrap.com/docs/5.3/layout/z-index/ */
+	z-index: 1090 !important;
+}
+</style>
diff --git a/assets/js/components/Savings.vue b/assets/js/components/Savings.vue
index 21fb7d46f4..324cd3b952 100644
--- a/assets/js/components/Savings.vue
+++ b/assets/js/components/Savings.vue
@@ -171,11 +171,7 @@
 										</div>
 									</div>
 									<div v-if="!priceConfigured || !co2Configured">
-										<a
-											href="https://docs.evcc.io/en/docs/reference/configuration/tariffs"
-											class="evcc-gray"
-											target="_blank"
-										>
+										<a :href="tariffLink" class="evcc-gray" target="_blank">
 											{{ $t("footer.savings.configurePriceCo2") }}
 										</a>
 									</div>
@@ -206,6 +202,7 @@ import CustomSelect from "./CustomSelect.vue";
 import co2Reference from "../co2Reference";
 import settings from "../settings";
 import api from "../api";
+import { docsPrefix } from "../i18n";
 
 export default {
 	name: "Savings",
@@ -227,6 +224,9 @@ export default {
 		};
 	},
 	computed: {
+		tariffLink() {
+			return `${docsPrefix()}/docs/reference/configuration/tariffs`;
+		},
 		percent() {
 			return Math.round(this.solarPercentage) || 0;
 		},
diff --git a/assets/js/components/TelemetrySettings.vue b/assets/js/components/TelemetrySettings.vue
index e8dc7c1e74..3201bd69c3 100644
--- a/assets/js/components/TelemetrySettings.vue
+++ b/assets/js/components/TelemetrySettings.vue
@@ -14,10 +14,7 @@
 			<label for="telemetryEnabled">
 				{{ $t("footer.telemetry.optIn") }}
 				<i18n-t v-if="sponsor" tag="span" keypath="footer.telemetry.optInMoreDetails">
-					<a
-						href="https://docs.evcc.io/docs/faq/#telemetry--community-daten"
-						target="_blank"
-					>
+					<a :href="docsLink" target="_blank">
 						{{ $t("footer.telemetry.optInMoreDetailsLink") }}
 					</a>
 				</i18n-t>
@@ -30,6 +27,7 @@
 
 <script>
 import api from "../api";
+import { docsPrefix } from "../i18n";
 import settings from "../settings";
 
 function parseMarkdown(markdownText) {
@@ -52,6 +50,9 @@ export default {
 		enabled() {
 			return settings.telemetry;
 		},
+		docsLink() {
+			return `${docsPrefix()}/docs/faq#telemetry`;
+		},
 	},
 	async mounted() {
 		await this.update();
diff --git a/assets/js/components/TopHeader.vue b/assets/js/components/TopHeader.vue
index e3d70ce049..d65c562ae1 100644
--- a/assets/js/components/TopHeader.vue
+++ b/assets/js/components/TopHeader.vue
@@ -2,8 +2,18 @@
 	<header class="d-flex justify-content-between align-items-center py-3 py-md-4">
 		<h1 class="mb-1 pt-1 d-flex text-nowrap text-truncate">
 			<router-link class="evcc-default-text" to="/" data-testid="home-link">
-				<shopicon-regular-home size="s" class="home"></shopicon-regular-home>
+				<shopicon-regular-home size="s" class="icon"></shopicon-regular-home>
 			</router-link>
+			<div v-if="showConfig" class="d-flex">
+				<div size="s" class="mx-2 flex-grow-0 flex-shrink-0 fw-normal">/</div>
+				<router-link to="/config" class="evcc-default-text text-decoration-none">
+					<shopicon-regular-settings
+						size="s"
+						class="icon d-block d-sm-none"
+					></shopicon-regular-settings>
+					<span class="d-none d-sm-block">{{ $t("config.main.title") }}</span>
+				</router-link>
+			</div>
 			<div size="s" class="mx-2 flex-grow-0 flex-shrink-0 fw-normal">/</div>
 			<span class="text-truncate">{{ title }}</span>
 		</h1>
@@ -13,6 +23,7 @@
 
 <script>
 import "@h2d2/shopicons/es/regular/home";
+import "@h2d2/shopicons/es/regular/settings";
 import TopNavigation from "./TopNavigation.vue";
 import collector from "../mixins/collector";
 import store from "../store";
@@ -24,6 +35,7 @@ export default {
 		TopNavigation,
 	},
 	props: {
+		showConfig: Boolean,
 		title: String,
 	},
 	computed: {
@@ -36,7 +48,7 @@ export default {
 </script>
 
 <style scoped>
-.home {
+.icon {
 	height: 22px;
 	width: 22px;
 	position: relative;
diff --git a/assets/js/components/TopNavigation.vue b/assets/js/components/TopNavigation.vue
index 9a6da9d291..fe8d35417b 100644
--- a/assets/js/components/TopNavigation.vue
+++ b/assets/js/components/TopNavigation.vue
@@ -51,18 +51,18 @@
 					{{ $t("batterySettings.modalTitle") }}
 				</button>
 			</li>
-			<li v-if="$hiddenFeatures()">
+			<li>
 				<router-link class="dropdown-item" to="/config">
-					Device Configuration 🧪
+					{{ $t("config.main.title") }}
 				</router-link>
 			</li>
 			<li><hr class="dropdown-divider" /></li>
+
 			<li v-if="showLogout">
 				<button type="button" class="dropdown-item" @click="logout">
 					{{ $t("header.logout") }}
 				</button>
 			</li>
-
 			<template v-if="providerLogins.length > 0">
 				<li><hr class="dropdown-divider" /></li>
 				<li>
diff --git a/assets/js/i18n.js b/assets/js/i18n.js
index cd456941de..05e41e2ea8 100644
--- a/assets/js/i18n.js
+++ b/assets/js/i18n.js
@@ -98,3 +98,9 @@ export async function ensureCurrentLocaleMessages(i18n) {
     await loadLocaleMessages(i18n, locale);
   }
 }
+
+export function docsPrefix() {
+  const locale = getLocale();
+  const path = locale === "de" ? "" : `/en`;
+  return `https://docs.evcc.io${path}`;
+}
diff --git a/assets/js/router.js b/assets/js/router.js
index 5afe30d9fc..4955b5d805 100644
--- a/assets/js/router.js
+++ b/assets/js/router.js
@@ -6,6 +6,9 @@ import { openLoginModal, updateAuthStatus, isLoggedIn } from "./auth";
 
 function hideAllModals() {
   [...document.querySelectorAll(".modal.show")].forEach((modal) => {
+    // skip unclosable modals
+    if (modal.getAttribute("data-bs-backdrop") === "static") return;
+
     const modalInstance = Modal.getInstance(modal);
     if (modalInstance) {
       modalInstance.hide();
@@ -13,6 +16,15 @@ function hideAllModals() {
   });
 }
 
+async function ensureAuth(to) {
+  await updateAuthStatus();
+  if (!isLoggedIn()) {
+    openLoginModal(to.path);
+    return false;
+  }
+  return true;
+}
+
 export default function setupRouter(i18n) {
   const router = createRouter({
     history: createWebHashHistory(),
@@ -21,13 +33,7 @@ export default function setupRouter(i18n) {
       {
         path: "/config",
         component: () => import("./views/Config.vue"),
-        beforeEnter: async () => {
-          await updateAuthStatus();
-          if (!isLoggedIn()) {
-            openLoginModal();
-            return false;
-          }
-        },
+        beforeEnter: ensureAuth,
         props: true,
       },
       {
@@ -43,6 +49,15 @@ export default function setupRouter(i18n) {
           };
         },
       },
+      {
+        path: "/log",
+        component: () => import("./views/Log.vue"),
+        beforeEnter: ensureAuth,
+      },
+      {
+        path: "/error",
+        component: () => import("./views/StartupError.vue"),
+      },
     ],
   });
   router.beforeEach(async () => {
diff --git a/assets/js/views/App.vue b/assets/js/views/App.vue
index ad67f082bb..209153528d 100644
--- a/assets/js/views/App.vue
+++ b/assets/js/views/App.vue
@@ -7,6 +7,7 @@
 		<HelpModal />
 		<PasswordModal />
 		<LoginModal />
+		<OfflineIndicator v-if="offline" />
 	</div>
 </template>
 
@@ -14,6 +15,7 @@
 import store from "../store";
 import GlobalSettingsModal from "../components/GlobalSettingsModal.vue";
 import BatterySettingsModal from "../components/BatterySettingsModal.vue";
+import OfflineIndicator from "../components/OfflineIndicator.vue";
 import PasswordModal from "../components/PasswordModal.vue";
 import LoginModal from "../components/LoginModal.vue";
 import HelpModal from "../components/HelpModal.vue";
@@ -38,6 +40,7 @@ export default {
 		BatterySettingsModal,
 		PasswordModal,
 		LoginModal,
+		OfflineIndicator,
 	},
 	mixins: [collector],
 	props: {
@@ -52,7 +55,7 @@ export default {
 		return { title: siteTitle ? `${siteTitle} | evcc` : "evcc" };
 	},
 	watch: {
-		version: function (prev, now) {
+		version: function (now, prev) {
 			if (!!prev && !!now) {
 				console.log("new version detected. reloading browser", { now, prev });
 				this.reload();
@@ -61,6 +64,15 @@ export default {
 		offline: function () {
 			updateAuthStatus();
 		},
+		startupErrors: function (now, prev) {
+			if (now) {
+				console.log("startup errors detected. redirecting to error page");
+				this.$router.push("/error");
+			} else {
+				console.log("startup errors resolved. redirecting to home page");
+				this.$router.push("/");
+			}
+		},
 	},
 	computed: {
 		version: function () {
@@ -75,6 +87,9 @@ export default {
 		batterySettingsProps() {
 			return this.collectProps(BatterySettingsModal, store.state);
 		},
+		startupErrors: function () {
+			return store.state.fatal?.length > 0;
+		},
 	},
 	mounted: function () {
 		this.connect();
diff --git a/assets/js/views/Config.vue b/assets/js/views/Config.vue
index 411a17d55d..7ad83fa9ee 100644
--- a/assets/js/views/Config.vue
+++ b/assets/js/views/Config.vue
@@ -1,16 +1,20 @@
 <template>
 	<div class="root safe-area-inset">
 		<div class="container px-4">
-			<TopHeader title="Configuration 🧪" />
+			<TopHeader :title="$t('config.main.title')" />
 			<div class="wrapper">
 				<div
-					v-if="dirty"
+					v-if="dirty || restarting"
 					class="alert alert-secondary d-flex justify-content-between align-items-center my-4"
 					role="alert"
 				>
-					<div v-if="restarting"><strong>Restarting evcc.</strong> Please wait ...</div>
+					<div v-if="restarting">
+						<strong>{{ $t("config.system.restartingMessage") }}</strong>
+						{{ $t("config.system.restartingDescription") }}
+					</div>
 					<div v-else>
-						<strong>Configuration changed.</strong> Please restart to see the effect.
+						<strong>{{ $t("config.system.restartRequiredMessage") }}</strong>
+						{{ $t("config.system.restartRequiredDescription") }}
 					</div>
 					<button
 						type="button"
@@ -24,183 +28,211 @@
 							role="status"
 							aria-hidden="true"
 						></span>
-						<span v-else> Restart </span>
+						<span v-else>{{ $t("config.system.restart") }}</span>
 					</button>
 				</div>
 
-				<div class="alert alert-danger my-4" role="alert">
-					<strong>Highly experimental!</strong> Only play around with these settings if
-					you know what you're doing. Otherwise you might have to reset or manually repair
-					your database.
-				</div>
-
-				<h2 class="my-4 mt-5">General</h2>
+				<h2 class="my-4 mt-5">{{ $t("config.section.general") }}</h2>
 				<GeneralConfig @site-changed="siteChanged" />
 
-				<h2 class="my-4 mt-5">Grid, PV & Battery Systems</h2>
-				<ul class="p-0 config-list">
-					<DeviceCard
-						:name="gridMeter?.config?.template || 'Grid meter'"
-						:unconfigured="!gridMeter"
-						:editable="!!gridMeter?.id"
-						data-testid="grid"
-						@configure="addMeter('grid')"
-						@edit="editMeter(gridMeter.id, 'grid')"
-					>
-						<template #icon>
-							<shopicon-regular-powersupply></shopicon-regular-powersupply>
-						</template>
-						<template #tags>
-							<DeviceTags :tags="deviceTags('meter', gridMeter?.name)" />
-						</template>
-					</DeviceCard>
-					<DeviceCard
-						v-for="meter in pvMeters"
-						:key="!!meter.name"
-						:name="meter.config?.template || 'Solar system'"
-						:editable="!!meter.id"
-						data-testid="pv"
-						@edit="editMeter(meter.id, 'pv')"
-					>
-						<template #icon>
-							<shopicon-regular-sun></shopicon-regular-sun>
-						</template>
-						<template #tags>
-							<DeviceTags :tags="deviceTags('meter', meter.name)" />
-						</template>
-					</DeviceCard>
-					<DeviceCard
-						v-for="meter in batteryMeters"
-						:key="meter.name"
-						:name="meter.config?.template || 'Battery storage'"
-						:editable="!!meter.id"
-						data-testid="battery"
-						@edit="editMeter(meter.id, 'battery')"
+				<h2 class="my-4 mt-5">{{ $t("config.section.system") }}</h2>
+				<div class="round-box p-4 d-flex gap-4">
+					<router-link to="/log" class="btn btn-outline-secondary">
+						{{ $t("config.system.logs") }}
+					</router-link>
+					<button
+						class="btn btn-outline-danger"
+						:disabled="restarting || offline"
+						@click="restart"
 					>
-						<template #icon>
-							<shopicon-regular-batterythreequarters></shopicon-regular-batterythreequarters>
-						</template>
-						<template #tags>
-							<DeviceTags :tags="deviceTags('meter', meter.name)" />
-						</template>
-					</DeviceCard>
-					<AddDeviceButton :title="$t('config.main.addPvBattery')" @add="addMeter" />
-				</ul>
+						<span
+							v-if="restarting || offline"
+							class="spinner-border spinner-border-sm"
+							role="status"
+							aria-hidden="true"
+						></span>
+						{{ $t("config.system.restart") }}
+					</button>
+				</div>
 
-				<h2 class="my-4 wip">Tariffs</h2>
+				<div v-if="$hiddenFeatures()">
+					<hr class="my-5" />
 
-				<ul class="p-0 config-list wip">
-					<DeviceCard
-						name="Grid"
-						unconfigured
-						data-testid="tariff-grid"
-						@configure="todo"
-					>
-						<template #icon>
-							<shopicon-regular-money></shopicon-regular-money>
-						</template>
-					</DeviceCard>
-					<DeviceCard
-						name="Feed-in"
-						unconfigured
-						data-testid="tariff-feedin"
-						@configure="todo"
-					>
-						<template #icon>
-							<shopicon-regular-receivepayment></shopicon-regular-receivepayment>
-						</template>
-					</DeviceCard>
-					<DeviceCard
-						name="CO₂ estimate"
-						unconfigured
-						data-testid="tariff-co2"
-						@configure="todo"
-					>
-						<template #icon>
-							<shopicon-regular-eco1></shopicon-regular-eco1>
-						</template>
-					</DeviceCard>
-				</ul>
+					<div class="alert alert-danger my-4" role="alert">
+						<strong>Highly experimental!</strong> Only play around with these settings
+						if you know what you're doing. Otherwise you might have to reset or manually
+						repair your database.
+					</div>
 
-				<h2 class="my-4 wip">Charge Points</h2>
+					<h2 class="my-4 mt-5">Grid, PV & Battery Systems</h2>
+					<ul class="p-0 config-list">
+						<DeviceCard
+							:name="gridMeter?.config?.template || 'Grid meter'"
+							:unconfigured="!gridMeter"
+							:editable="!!gridMeter?.id"
+							data-testid="grid"
+							@configure="addMeter('grid')"
+							@edit="editMeter(gridMeter.id, 'grid')"
+						>
+							<template #icon>
+								<shopicon-regular-powersupply></shopicon-regular-powersupply>
+							</template>
+							<template #tags>
+								<DeviceTags :tags="deviceTags('meter', gridMeter?.name)" />
+							</template>
+						</DeviceCard>
+						<DeviceCard
+							v-for="meter in pvMeters"
+							:key="!!meter.name"
+							:name="meter.config?.template || 'Solar system'"
+							:editable="!!meter.id"
+							data-testid="pv"
+							@edit="editMeter(meter.id, 'pv')"
+						>
+							<template #icon>
+								<shopicon-regular-sun></shopicon-regular-sun>
+							</template>
+							<template #tags>
+								<DeviceTags :tags="deviceTags('meter', meter.name)" />
+							</template>
+						</DeviceCard>
+						<DeviceCard
+							v-for="meter in batteryMeters"
+							:key="meter.name"
+							:name="meter.config?.template || 'Battery storage'"
+							:editable="!!meter.id"
+							data-testid="battery"
+							@edit="editMeter(meter.id, 'battery')"
+						>
+							<template #icon>
+								<shopicon-regular-batterythreequarters></shopicon-regular-batterythreequarters>
+							</template>
+							<template #tags>
+								<DeviceTags :tags="deviceTags('meter', meter.name)" />
+							</template>
+						</DeviceCard>
+						<AddDeviceButton :title="$t('config.main.addPvBattery')" @add="addMeter" />
+					</ul>
 
-				<ul class="p-0 config-list wip">
-					<DeviceCard
-						name="Fake Carport"
-						editable
-						data-testid="chargepoint-1"
-						@edit="todo"
-					>
-						<template #icon>
-							<shopicon-regular-cablecharge></shopicon-regular-cablecharge>
-						</template>
-						<template #tags>
-							<DeviceTags :tags="{ power: 0 }" />
-						</template>
-					</DeviceCard>
-					<AddDeviceButton
-						data-testid="add-loadpoint"
-						:title="$t('config.main.addLoadpoint')"
-						@click="todo"
-					/>
-				</ul>
+					<h2 class="my-4 wip">Tariffs</h2>
 
-				<h2 class="my-4">Vehicles</h2>
-				<div>
-					<ul class="p-0 config-list">
+					<ul class="p-0 config-list wip">
+						<DeviceCard
+							name="Grid"
+							unconfigured
+							data-testid="tariff-grid"
+							@configure="todo"
+						>
+							<template #icon>
+								<shopicon-regular-money></shopicon-regular-money>
+							</template>
+						</DeviceCard>
+						<DeviceCard
+							name="Feed-in"
+							unconfigured
+							data-testid="tariff-feedin"
+							@configure="todo"
+						>
+							<template #icon>
+								<shopicon-regular-receivepayment></shopicon-regular-receivepayment>
+							</template>
+						</DeviceCard>
 						<DeviceCard
-							v-for="vehicle in vehicles"
-							:key="vehicle.id"
-							:name="vehicle.config?.title || vehicle.name"
-							:editable="vehicle.id >= 0"
-							data-testid="vehicle"
-							@edit="editVehicle(vehicle.id)"
+							name="CO₂ estimate"
+							unconfigured
+							data-testid="tariff-co2"
+							@configure="todo"
 						>
 							<template #icon>
-								<VehicleIcon :name="vehicle.config?.icon" />
+								<shopicon-regular-eco1></shopicon-regular-eco1>
+							</template>
+						</DeviceCard>
+					</ul>
+
+					<h2 class="my-4 wip">Charge Points</h2>
+
+					<ul class="p-0 config-list wip">
+						<DeviceCard
+							name="Fake Carport"
+							editable
+							data-testid="chargepoint-1"
+							@edit="todo"
+						>
+							<template #icon>
+								<shopicon-regular-cablecharge></shopicon-regular-cablecharge>
 							</template>
 							<template #tags>
-								<DeviceTags :tags="deviceTags('vehicle', vehicle.name)" />
+								<DeviceTags :tags="{ power: 0 }" />
 							</template>
 						</DeviceCard>
 						<AddDeviceButton
-							data-testid="add-vehicle"
-							:title="$t('config.main.addVehicle')"
-							@click="addVehicle"
+							data-testid="add-loadpoint"
+							:title="$t('config.main.addLoadpoint')"
+							@click="todo"
 						/>
 					</ul>
-				</div>
-				<h2 class="my-4 wip">Integrations</h2>
 
-				<ul class="p-0 config-list wip">
-					<DeviceCard name="MQTT" unconfigured data-testid="mqtt" @configure="todo">
-						<template #icon>
-							<shopicon-regular-fastdelivery1></shopicon-regular-fastdelivery1>
-						</template>
-					</DeviceCard>
-					<DeviceCard
-						name="Notifications"
-						unconfigured
-						data-testid="eebus"
-						@configure="todo"
-					>
-						<template #icon>
-							<shopicon-regular-sendit></shopicon-regular-sendit>
-						</template>
-					</DeviceCard>
-					<DeviceCard name="InfluxDB" unconfigured data-testid="influx" @configure="todo">
-						<template #icon>
-							<shopicon-regular-diagram></shopicon-regular-diagram>
-						</template>
-					</DeviceCard>
-					<DeviceCard name="EEBus" unconfigured data-testid="eebus" @configure="todo">
-						<template #icon>
-							<shopicon-regular-polygon></shopicon-regular-polygon>
-						</template>
-					</DeviceCard>
-				</ul>
+					<h2 class="my-4">Vehicles</h2>
+					<div>
+						<ul class="p-0 config-list">
+							<DeviceCard
+								v-for="vehicle in vehicles"
+								:key="vehicle.id"
+								:name="vehicle.config?.title || vehicle.name"
+								:editable="vehicle.id >= 0"
+								data-testid="vehicle"
+								@edit="editVehicle(vehicle.id)"
+							>
+								<template #icon>
+									<VehicleIcon :name="vehicle.config?.icon" />
+								</template>
+								<template #tags>
+									<DeviceTags :tags="deviceTags('vehicle', vehicle.name)" />
+								</template>
+							</DeviceCard>
+							<AddDeviceButton
+								data-testid="add-vehicle"
+								:title="$t('config.main.addVehicle')"
+								@click="addVehicle"
+							/>
+						</ul>
+					</div>
+					<h2 class="my-4 wip">Integrations</h2>
+
+					<ul class="p-0 config-list wip">
+						<DeviceCard name="MQTT" unconfigured data-testid="mqtt" @configure="todo">
+							<template #icon>
+								<shopicon-regular-fastdelivery1></shopicon-regular-fastdelivery1>
+							</template>
+						</DeviceCard>
+						<DeviceCard
+							name="Notifications"
+							unconfigured
+							data-testid="eebus"
+							@configure="todo"
+						>
+							<template #icon>
+								<shopicon-regular-sendit></shopicon-regular-sendit>
+							</template>
+						</DeviceCard>
+						<DeviceCard
+							name="InfluxDB"
+							unconfigured
+							data-testid="influx"
+							@configure="todo"
+						>
+							<template #icon>
+								<shopicon-regular-diagram></shopicon-regular-diagram>
+							</template>
+						</DeviceCard>
+						<DeviceCard name="EEBus" unconfigured data-testid="eebus" @configure="todo">
+							<template #icon>
+								<shopicon-regular-polygon></shopicon-regular-polygon>
+							</template>
+						</DeviceCard>
+					</ul>
+				</div>
 
-				<hr class="my-5" />
 				<VehicleModal :id="selectedVehicleId" @vehicle-changed="vehicleChanged" />
 				<MeterModal
 					:id="selectedMeterId"
@@ -416,7 +448,7 @@ export default {
 		},
 		async restart() {
 			try {
-				await api.post("shutdown");
+				await api.post("/system/shutdown");
 				this.restarting = true;
 			} catch (e) {
 				alert("Unabled to restart server.");
@@ -447,6 +479,14 @@ export default {
 		deviceTags(type, id) {
 			return this.deviceValues[type]?.[id] || [];
 		},
+		openModal(id) {
+			const $el = document.getElementById(id);
+			if ($el) {
+				Modal.getOrCreateInstance($el).show();
+			} else {
+				console.error(`modal ${id} not found`);
+			}
+		},
 	},
 };
 </script>
@@ -459,5 +499,6 @@ export default {
 }
 .wip {
 	opacity: 0.2 !important;
+	display: none !important;
 }
 </style>
diff --git a/assets/js/views/Log.vue b/assets/js/views/Log.vue
new file mode 100644
index 0000000000..aa7393e48a
--- /dev/null
+++ b/assets/js/views/Log.vue
@@ -0,0 +1,321 @@
+<template>
+	<div class="root safe-area-inset">
+		<div class="container d-flex h-100 flex-column px-0 pb-4">
+			<TopHeader showConfig :title="$t('log.title')" class="mx-4" />
+			<div class="logs d-flex flex-column overflow-hidden flex-grow-1 px-4 mx-2 mx-sm-4">
+				<div class="flex-grow-0 row py-4">
+					<div class="col-6 col-lg-3 mb-4 mb-lg-0 d-flex gap-2">
+						<div class="btn-group">
+							<button
+								type="button"
+								class="btn text-nowrap d-flex w-100 w-lg-auto justify-content-between"
+								:class="autoFollow ? 'btn-secondary' : 'btn-outline-secondary'"
+								@click="toggleAutoFollow"
+							>
+								<span class="text-nowrap text-truncate">
+									{{ $t("log.update") }}
+								</span>
+								<Record
+									v-if="autoFollow"
+									ref="spin"
+									class="ms-1 spin flex-shrink-0"
+									:style="{ animationDuration: `${updateInterval}ms` }"
+								/>
+								<Play v-else class="ms-1 flex-shrink-0 play" />
+							</button>
+							<a
+								class="btn btn-outline-secondary"
+								:aria-label="$t('log.download')"
+								:href="downloadUrl"
+								download
+							>
+								<shopicon-regular-download
+									size="s"
+									class="icon"
+								></shopicon-regular-download>
+							</a>
+						</div>
+					</div>
+					<div class="col-6 offset-lg-1 col-lg-4 mb-4 mb-lg-0">
+						<input
+							type="search"
+							class="form-control search"
+							:placeholder="$t('log.search')"
+							v-model="search"
+						/>
+					</div>
+					<div class="filterLevel col-6 col-lg-2">
+						<select
+							class="form-select"
+							v-model="level"
+							:aria-label="$t('log.levelLabel')"
+							@change="updateLogs()"
+						>
+							<option v-for="level in levels" :key="level" :value="level">
+								{{ level }}
+							</option>
+						</select>
+					</div>
+					<div class="filterAreas col-6 col-lg-2">
+						<select
+							class="form-select"
+							v-model="area"
+							:aria-label="$t('log.areaLabel')"
+							@focus="updateAreas()"
+							@change="updateLogs()"
+						>
+							<option value="">{{ $t("log.areas") }}</option>
+							<hr />
+							<option v-for="area in areas" :key="area" :value="area">
+								{{ area }}
+							</option>
+						</select>
+					</div>
+				</div>
+				<hr class="my-0" />
+				<div
+					class="overflow-y-scroll pt-2 pb-4 flex-grow-1 d-flex flex-column"
+					ref="log"
+					@scroll="onScroll"
+				>
+					<div v-if="showMoreButton" class="my-2">
+						<button
+							class="btn btn-link btn-sm evcc-default-text px-0"
+							type="button"
+							@click="updateLogs(true)"
+						>
+							{{ $t("log.showAll") }}
+						</button>
+					</div>
+					<code
+						v-if="filteredLines.length"
+						class="d-block evcc-default-text flex-grow-1"
+						data-testid="log-content"
+					>
+						<div
+							v-for="{ line, className, key } in lineEntries"
+							:key="key"
+							:class="className"
+						>
+							{{ line }}
+						</div>
+					</code>
+					<p v-else class="my-4">{{ $t("log.noResults") }}</p>
+				</div>
+			</div>
+		</div>
+	</div>
+</template>
+
+<script>
+import "@h2d2/shopicons/es/regular/download";
+import TopHeader from "../components/TopHeader.vue";
+import Play from "../components/MaterialIcon/Play.vue";
+import Record from "../components/MaterialIcon/Record.vue";
+import api from "../api";
+import store from "../store";
+
+const LEVELS = ["FATAL", "ERROR", "WARN", "INFO", "DEBUG", "TRACE"];
+const DEFAULT_LEVEL = "DEBUG";
+const DEFAULT_COUNT = 1000;
+
+const levelMatcher = new RegExp(`\\[.*?\\] (${LEVELS.join("|")})`);
+
+export default {
+	name: "Log",
+	components: {
+		TopHeader,
+		Play,
+		Record,
+	},
+	data() {
+		return {
+			lines: [],
+			areas: [],
+			search: "",
+			level: DEFAULT_LEVEL,
+			area: "",
+			timeout: null,
+			levels: LEVELS,
+			busy: false,
+		};
+	},
+	mounted() {
+		this.startInterval();
+		this.updateAreas();
+	},
+	unmounted() {
+		this.stopInterval();
+	},
+	computed: {
+		filteredLines() {
+			return this.lines.filter(
+				(line) =>
+					!this.search || line.toLowerCase().includes(this.search.toLocaleLowerCase())
+			);
+		},
+		lineEntries() {
+			const occurrences = new Map();
+			return this.filteredLines.map((line) => {
+				// generate a unique key per line for performant dom updates
+				let key = line.substring(0, 50);
+				const count = occurrences.get(key) || 0;
+				occurrences.set(key, count + 1);
+				key = `${key}-${count + 1}`;
+
+				const className = `log log-${levelMatcher.exec(line)?.[1].toLowerCase() || "none"}`;
+
+				return { key, className, line };
+			});
+		},
+		showMoreButton() {
+			return this.lines.length === DEFAULT_COUNT;
+		},
+		updateInterval() {
+			return (store.state?.interval || 10) * 1000;
+		},
+		downloadUrl() {
+			const params = new URLSearchParams();
+			if (this.level) {
+				params.append("level", this.level);
+			}
+			if (this.area) {
+				params.append("area", this.area);
+			}
+			params.append("format", "txt");
+			return `./api/system/log?${params.toString()}`;
+		},
+		autoFollow() {
+			return this.timeout !== null;
+		},
+	},
+	methods: {
+		async updateLogs(showAll) {
+			// prevent concurrent requests
+			if (this.busy) return;
+
+			try {
+				this.busy = true;
+				const response = await api.get("/system/log", {
+					params: {
+						level: this.level?.toLocaleLowerCase() || null,
+						area: this.area || null,
+						count: showAll ? null : DEFAULT_COUNT,
+					},
+				});
+				this.lines = response.data?.result || [];
+				this.$nextTick(() => {
+					if (showAll) {
+						this.scrollToTop();
+					} else {
+						this.scrollToBottom();
+					}
+				});
+			} catch (e) {
+				console.error(e);
+			}
+			this.busy = false;
+		},
+		startInterval() {
+			this.stopInterval();
+			this.updateLogs();
+			this.timeout = setInterval(() => {
+				this.updateLogs();
+			}, this.updateInterval);
+		},
+		stopInterval() {
+			if (this.timeout) {
+				clearTimeout(this.timeout);
+				this.timeout = null;
+			}
+		},
+		async updateAreas() {
+			try {
+				const response = await api.get("/system/log/areas");
+				this.areas = response.data?.result || [];
+			} catch (e) {
+				console.error(e);
+			}
+		},
+		onScroll(e) {
+			// disable follow when not at the bottom
+			if (
+				this.autoFollow &&
+				e.target.scrollTop + e.target.clientHeight < e.target.scrollHeight
+			) {
+				this.stopInterval();
+			}
+		},
+		scrollToTop() {
+			this.$refs.log.scrollTop = 0;
+		},
+		scrollToBottom() {
+			this.$refs.log.scrollTop = this.$refs.log.scrollHeight;
+		},
+		toggleAutoFollow() {
+			if (this.autoFollow) {
+				this.stopInterval();
+			} else {
+				this.scrollToBottom();
+				this.startInterval();
+			}
+		},
+	},
+};
+</script>
+<style scoped>
+.logs {
+	border-radius: 2rem;
+	background: var(--evcc-box);
+}
+.root {
+	height: 100vh;
+	height: 100dvh;
+}
+.btn {
+	--bs-btn-border-width: 1px;
+}
+.play {
+	transform: scale(1.2);
+}
+.spin {
+	animation: rotation 3s infinite ease-in-out;
+}
+@keyframes rotation {
+	from {
+		transform: rotate(0deg) scale(1, -1);
+	}
+	to {
+		transform: rotate(1440deg) scale(1, -1);
+	}
+}
+@keyframes fadeIn {
+	from {
+		opacity: 0;
+	}
+	to {
+		opacity: var(--opacity);
+	}
+}
+.log {
+	--opacity: 1;
+	opacity: var(--opacity);
+	animation-name: fadeIn;
+	animation-duration: 1s;
+	animation-fill-mode: forwards;
+	animation-timing-function: ease-out;
+}
+.log-warn {
+	color: var(--bs-warning);
+}
+.log-error,
+.log-fatal {
+	color: var(--bs-danger);
+}
+.log-debug {
+	--opacity: 0.6;
+}
+.log-trace {
+	--opacity: 0.4;
+}
+</style>
diff --git a/assets/js/views/Main.vue b/assets/js/views/Main.vue
index ae4f9900a0..0a2fd3f4dc 100644
--- a/assets/js/views/Main.vue
+++ b/assets/js/views/Main.vue
@@ -1,31 +1,19 @@
 <template>
-	<div>
-		<OfflineIndicator v-if="offline" />
-		<StartupError v-if="startupErrors" v-bind="state" :offline="offline" />
-		<Site v-else :notifications="notifications" v-bind="state"></Site>
-	</div>
+	<Site :notifications="notifications" v-bind="state"></Site>
 </template>
 
 <script>
 import Site from "../components/Site.vue";
-import StartupError from "../components/StartupError.vue";
-import OfflineIndicator from "../components/OfflineIndicator.vue";
 import store from "../store";
 
 export default {
 	name: "Main",
-	components: { Site, StartupError, OfflineIndicator },
+	components: { Site },
 	props: {
 		notifications: Array,
-		offline: Boolean,
 	},
 	data: function () {
 		return store;
 	},
-	computed: {
-		startupErrors: function () {
-			return this.state.fatal?.length > 0;
-		},
-	},
 };
 </script>
diff --git a/assets/js/components/StartupError.vue b/assets/js/views/StartupError.vue
similarity index 92%
rename from assets/js/components/StartupError.vue
rename to assets/js/views/StartupError.vue
index 97d51ae1b4..b2c0f51b6f 100644
--- a/assets/js/components/StartupError.vue
+++ b/assets/js/views/StartupError.vue
@@ -1,6 +1,6 @@
 <template>
-	<div class="container px-4">
-		<div class="d-flex justify-content-between align-items-center my-3">
+	<div class="container px-4 safe-area-inset">
+		<div class="d-flex justify-content-between align-items-center my-3 my-md-4">
 			<h1 class="d-block mt-0 d-flex">
 				{{ $t("startupError.title") }}
 				<shopicon-regular-car1 size="m" class="ms-2 icon"></shopicon-regular-car1>
@@ -41,6 +41,13 @@
 						:disabled="offline"
 						@click="shutdown"
 					>
+						<span
+							v-if="offline"
+							class="spinner-border spinner-border-sm"
+							role="status"
+							aria-hidden="true"
+						></span>
+
 						{{ $t("startupError.restartButton") }}
 					</button>
 				</p>
@@ -88,7 +95,7 @@ export default {
 	},
 	methods: {
 		shutdown() {
-			api.post("shutdown");
+			api.post("/system/shutdown");
 		},
 		scrollTo(e) {
 			const id = e.currentTarget.getAttribute("href").substring(1);
diff --git a/cmd/root.go b/cmd/root.go
index c7f7349acc..9654f2fd43 100644
--- a/cmd/root.go
+++ b/cmd/root.go
@@ -18,6 +18,7 @@ import (
 	"github.com/evcc-io/evcc/server/modbus"
 	"github.com/evcc-io/evcc/server/updater"
 	"github.com/evcc-io/evcc/util"
+	"github.com/evcc-io/evcc/util/auth"
 	"github.com/evcc-io/evcc/util/config"
 	"github.com/evcc-io/evcc/util/pipe"
 	"github.com/evcc-io/evcc/util/sponsor"
@@ -246,11 +247,14 @@ func runRoot(cmd *cobra.Command, args []string) {
 		os.Exit(0)
 	}()
 
+	auth := auth.New()
+
 	// show main ui
 	if err == nil {
-		httpd.RegisterSiteHandlers(site, cache)
-		httpd.RegisterShutdownHandler(func() {
-			log.FATAL.Println("evcc was stopped by user. OS should restart the service. Or restart manually.")
+		httpd.RegisterSiteHandlers(site, auth, cache)
+		httpd.RegisterAuthHandlers(auth)
+		httpd.RegisterSystemHandler(auth, func() {
+			log.INFO.Println("evcc was stopped by user. OS should restart the service. Or restart manually.")
 			once.Do(func() { close(stopC) }) // signal loop to end
 		})
 
@@ -284,8 +288,9 @@ func runRoot(cmd *cobra.Command, args []string) {
 			site.Run(stopC, conf.Interval)
 		}()
 	} else {
-		httpd.RegisterShutdownHandler(func() {
-			log.FATAL.Println("evcc was stopped. OS should restart the service. Or restart manually.")
+		httpd.RegisterAuthHandlers(auth)
+		httpd.RegisterSystemHandler(auth, func() {
+			log.INFO.Println("evcc was stopped by user. OS should restart the service. Or restart manually.")
 			once.Do(func() { close(stopC) }) // signal loop to end
 		})
 
diff --git a/core/keys/site.go b/core/keys/site.go
index dc50cec700..e4be858f8f 100644
--- a/core/keys/site.go
+++ b/core/keys/site.go
@@ -29,6 +29,7 @@ const (
 	TariffPriceLoadpoints = "tariffPriceLoadpoints"
 	Vehicles              = "vehicles"
 	PasswordConfigured    = "passwordConfigured"
+	Interval              = "interval"
 
 	// meters
 	GridMeter     = "gridMeter"
diff --git a/core/site.go b/core/site.go
index 0a996cc035..766ab93bcc 100644
--- a/core/site.go
+++ b/core/site.go
@@ -902,6 +902,7 @@ func (site *Site) Run(stopC chan struct{}, interval time.Duration) {
 	go site.loopLoadpoints(loadpointChan)
 
 	ticker := time.NewTicker(interval)
+	site.publish(keys.Interval, interval.Seconds())
 	site.update(<-loadpointChan) // start immediately
 
 	for {
diff --git a/i18n/de.toml b/i18n/de.toml
index 5a3e4f4add..2a5bd39149 100644
--- a/i18n/de.toml
+++ b/i18n/de.toml
@@ -13,7 +13,7 @@ legendTitle = "Wie soll Sonnenstrom genutzt werden?"
 legendTopAutostart = "startet automatisch"
 legendTopName = "Batterieunterstütztes Laden"
 legendTopSubline = "ohne Unterbrechungen"
-modalTitle = "Batterieeinstellungen"
+modalTitle = "Hausbatterie"
 
 [batterySettings.bufferStart]
 above = "wenn über {soc}"
@@ -76,6 +76,18 @@ validateSave = "Überprüfen & speichern"
 titleAdd = "Zähler (PV) hinzufügen"
 titleEdit = "Zähler (PV) bearbeiten"
 
+[config.section]
+general = "Allgemein"
+system = "System"
+
+[config.system]
+logs = "Logs"
+restart = "Neu starten"
+restartRequiredDescription = "Bitte neu starten, um die Änderungen zu übernehmen."
+restartRequiredMessage = "Konfiguration geändert."
+restartingDescription = "Bitte warten …"
+restartingMessage = "evcc wird neu gestartet."
+
 [config.title]
 description = "Wird in der Hauptansicht und im Browser-Tab angezeigt."
 label = "Titel"
@@ -85,7 +97,6 @@ title = "Titel bearbeiten"
 failed = "fehlgeschlagen"
 label = "Status"
 running = "prüfe…"
-save = "Speichern"
 success = "erfolgreich"
 unknown = "unbekannt"
 validate = "prüfen"
@@ -102,7 +113,6 @@ scooter = "Scooter"
 template = "Hersteller"
 titleAdd = "Fahrzeug hinzufügen"
 titleEdit = "Fahrzeug bearbeiten"
-update = "Prüfen & speichern"
 validateSave = "Prüfen & speichern"
 
 [footer]
@@ -175,6 +185,7 @@ blog = "Blog"
 docs = "Dokumentation"
 github = "GitHub"
 login = "Fahrzeug-Logins"
+logout = "Abmelden"
 nativeSettings = "Server ändern"
 needHelp = "Hilfe benötigt?"
 sessions = "Ladevorgänge"
@@ -184,6 +195,8 @@ discussionsButton = "GitHub Discussions"
 documentationButton = "Dokumentation"
 issueButton = "Bug melden"
 issueDescription = "Komisches Verhalten gefunden?"
+logsButton = "Logs ansehen"
+logsDescription = "Überprüfe die Logs auf Fehler."
 modalTitle = "Hilfe benötigt?"
 primaryActions = "Funktioniert etwas nicht so, wie es soll? Dies sind gute Anlaufstellen, um Hilfe zu erhalten."
 restartButton = "Neu starten"
@@ -197,12 +210,24 @@ description = "Unter normalen Umständen sollte ein Neustart nicht notwendig sei
 disclaimer = "Hinweis: evcc beendet sich und verlässt sich darauf, vom Betriebssystem neu gestartet zu werden."
 modalTitle = "Sicher, dass du neu starten möchtest?"
 
+[log]
+areaLabel = "Nach Bereich filtern"
+areas = "Alle Bereiche"
+download = "Komplettes Log herunterladen"
+levelLabel = "Nach Log-Level filtern"
+noResults = "Keine passenden Einträge gefunden."
+search = "Suchen"
+showAll = "Alle Einträge anzeigen"
+title = "Logs"
+update = "Aktualisieren"
+
 [loginModal]
 cancel = "Abbrechen"
 error = "Login fehlgeschlagen: "
 invalid = "Passwort ist ungültig."
 login = "Anmelden"
 password = "Passwort"
+reset = "Passwort zurücksetzen?"
 title = "Authentifizierung"
 
 [main]
@@ -382,6 +407,7 @@ waitForVehicle = "Ladebereit. Warte auf Fahrzeug …"
 
 [notifications]
 dismissAll = "Meldungen entfernen"
+logs = "Vollständigs Log ansehen"
 modalTitle = "Meldungen"
 
 [offline]
@@ -451,7 +477,7 @@ allVehicles = "Alle Fahrzeuge"
 filter = "Filtern"
 
 [settings]
-title = "Allgemeine Einstellungen"
+title = "Darstellung"
 
 [settings.hiddenFeatures]
 label = "Experimentell"
diff --git a/i18n/en.toml b/i18n/en.toml
index c4aa20a014..bf4939d10b 100644
--- a/i18n/en.toml
+++ b/i18n/en.toml
@@ -13,7 +13,7 @@ legendTitle = "How should solar energy be used?"
 legendTopAutostart = "starts automatically"
 legendTopName = "battery supported charging"
 legendTopSubline = "without interruptions"
-modalTitle = "Battery Settings"
+modalTitle = "Home Battery"
 
 [batterySettings.bufferStart]
 above = "when above {soc}"
@@ -76,6 +76,18 @@ validateSave = "Validate & save"
 titleAdd = "Add Solar Meter"
 titleEdit = "Edit Solar Meter"
 
+[config.section]
+general = "General"
+system = "System"
+
+[config.system]
+logs = "Logs"
+restart = "Restart"
+restartRequiredDescription = "Please restart to see the effect."
+restartRequiredMessage = "Configuration changed."
+restartingDescription = "Please wait…"
+restartingMessage = "Restarting evcc."
+
 [config.title]
 description = "Displayed on main screen and browser tab."
 label = "Title"
@@ -182,6 +194,8 @@ discussionsButton = "GitHub discussions"
 documentationButton = "Documentation"
 issueButton = "Report a bug"
 issueDescription = "Found a strange or wrong behavior?"
+logsButton = "View logs"
+logsDescription = "Check the logs for errors."
 modalTitle = "Need help?"
 primaryActions = "Something does not work the way it supposed to do? These are good places to get help."
 restartButton = "Restart"
@@ -195,12 +209,24 @@ description = "Under normal circumstances restarting should not be necessary. Pl
 disclaimer = "Note: evcc will terminate and rely on the operating system to restart the service."
 modalTitle = "Are you sure you want to restart?"
 
+[log]
+areaLabel = "Filter by area"
+areas = "All areas"
+download = "Download complete log"
+levelLabel = "Filter by log level"
+noResults = "No matching log entries."
+search = "Search"
+showAll = "Show all entries"
+title = "Logs"
+update = "Auto update"
+
 [loginModal]
 cancel = "Cancel"
 error = "Login failed: "
 invalid = "Password is invalid."
 login = "Login"
 password = "Password"
+reset = "Reset password?"
 title = "Authentication"
 
 [main]
@@ -380,6 +406,7 @@ waitForVehicle = "Ready. Waiting for vehicle…"
 
 [notifications]
 dismissAll = "Dismiss all"
+logs = "View full logs"
 modalTitle = "Notifications"
 
 [offline]
@@ -449,7 +476,7 @@ allVehicles = "all vehicles"
 filter = "Filter"
 
 [settings]
-title = "General Settings"
+title = "User Interface"
 
 [settings.hiddenFeatures]
 label = "Experimental"
diff --git a/server/http.go b/server/http.go
index b6c1d42c72..f109715cac 100644
--- a/server/http.go
+++ b/server/http.go
@@ -84,7 +84,7 @@ func (s *HTTPd) Router() *mux.Router {
 }
 
 // RegisterSiteHandlers connects the http handlers to the site
-func (s *HTTPd) RegisterSiteHandlers(site site.API, cache *util.Cache) {
+func (s *HTTPd) RegisterSiteHandlers(site site.API, auth auth.Auth, cache *util.Cache) {
 	router := s.Server.Handler.(*mux.Router)
 
 	// api
@@ -95,8 +95,6 @@ func (s *HTTPd) RegisterSiteHandlers(site site.API, cache *util.Cache) {
 		handlers.AllowedHeaders([]string{"Content-Type"}),
 	))
 
-	auth := auth.New()
-
 	// site api
 	routes := map[string]route{
 		"health":                  {"GET", "/health", healthHandler(site)},
@@ -113,10 +111,6 @@ func (s *HTTPd) RegisterSiteHandlers(site site.API, cache *util.Cache) {
 		"deletesession":           {"DELETE", "/session/{id:[0-9]+}", deleteSessionHandler},
 		"telemetry":               {"GET", "/settings/telemetry", boolGetHandler(telemetry.Enabled)},
 		"telemetry2":              {"POST", "/settings/telemetry/{value:[a-z]+}", boolHandler(telemetry.Enable, telemetry.Enabled)},
-		"password":                {"PUT", "/auth/password", updatePasswordHandler(auth)},
-		"auth":                    {"GET", "/auth/status", authStatusHandler(auth)},
-		"login":                   {"POST", "/auth/login", loginHandler(auth)},
-		"logout":                  {"POST", "/auth/logout", logoutHandler},
 	}
 
 	for _, r := range routes {
@@ -196,22 +190,50 @@ func (s *HTTPd) RegisterSiteHandlers(site site.API, cache *util.Cache) {
 	}
 }
 
-// RegisterShutdownHandler connects the http handlers to the site
-func (s *HTTPd) RegisterShutdownHandler(callback func()) {
+// RegisterAuthHandlers provides authentication handlers
+func (s *HTTPd) RegisterAuthHandlers(auth auth.Auth) {
 	router := s.Server.Handler.(*mux.Router)
 
 	// api
-	api := router.PathPrefix("/api").Subrouter()
+	api := router.PathPrefix("/api/auth").Subrouter()
 	api.Use(jsonHandler)
 	api.Use(handlers.CompressHandler)
 	api.Use(handlers.CORS(
 		handlers.AllowedHeaders([]string{"Content-Type"}),
 	))
 
-	// site api
+	// auth api
+	routes := map[string]route{
+		"password": {"PUT", "/password", updatePasswordHandler(auth)},
+		"auth":     {"GET", "/status", authStatusHandler(auth)},
+		"login":    {"POST", "/login", loginHandler(auth)},
+		"logout":   {"POST", "/logout", logoutHandler},
+	}
+
+	for _, r := range routes {
+		api.Methods(r.Methods()...).Path(r.Pattern).Handler(r.HandlerFunc)
+	}
+}
+
+// RegisterSystemHandler provides system level handlers
+func (s *HTTPd) RegisterSystemHandler(auth auth.Auth, shutdown func()) {
+	router := s.Server.Handler.(*mux.Router)
+
+	// api
+	api := router.PathPrefix("/api/system").Subrouter()
+	api.Use(jsonHandler)
+	api.Use(ensureAuthHandler(auth))
+	api.Use(handlers.CompressHandler)
+	api.Use(handlers.CORS(
+		handlers.AllowedHeaders([]string{"Content-Type"}),
+	))
+
+	// system api
 	routes := map[string]route{
+		"log":      {"GET", "/log", logHandler},
+		"logareas": {"GET", "/log/areas", logAreasHandler},
 		"shutdown": {"POST", "/shutdown", func(w http.ResponseWriter, r *http.Request) {
-			callback()
+			shutdown()
 			w.WriteHeader(http.StatusNoContent)
 		}},
 	}
diff --git a/server/http_site_handler.go b/server/http_site_handler.go
index 33c59f7022..58285f870e 100644
--- a/server/http_site_handler.go
+++ b/server/http_site_handler.go
@@ -10,12 +10,14 @@ import (
 	"strconv"
 	"strings"
 	"text/template"
+	"time"
 
 	"github.com/evcc-io/evcc/api"
 	"github.com/evcc-io/evcc/core/site"
 	"github.com/evcc-io/evcc/server/assets"
 	"github.com/evcc-io/evcc/util"
 	"github.com/evcc-io/evcc/util/jq"
+	"github.com/evcc-io/evcc/util/logstash"
 	"github.com/gorilla/mux"
 	"github.com/itchyny/gojq"
 	"golang.org/x/text/language"
@@ -244,3 +246,35 @@ func socketHandler(hub *SocketHub) http.HandlerFunc {
 		hub.ServeWebsocket(w, r)
 	}
 }
+
+func logAreasHandler(w http.ResponseWriter, r *http.Request) {
+	jsonResult(w, logstash.Areas())
+}
+
+func logHandler(w http.ResponseWriter, r *http.Request) {
+	a := r.URL.Query()["area"]
+	l := logstash.LogLevelToThreshold(r.URL.Query().Get("level"))
+
+	var count int
+	if v := r.URL.Query().Get("count"); v != "" {
+		count, _ = strconv.Atoi(v)
+	}
+
+	log := logstash.All(a, l, count)
+
+	if r.URL.Query().Get("format") == "txt" {
+		filename := "evcc-" + time.Now().Format("20060102-150405") + `-` + strings.ToLower(l.String()) + ".log"
+		w.Header().Set("Content-Type", "text/plain")
+		w.Header().Set("Content-Disposition", `attachment; filename="`+filename+`"`)
+
+		for _, s := range log {
+			if _, err := w.Write([]byte(s)); err != nil {
+				return
+			}
+		}
+
+		return
+	}
+
+	jsonResult(w, log)
+}
diff --git a/tests/auth.spec.js b/tests/auth.spec.js
index c1e78d105c..23620d8fb3 100644
--- a/tests/auth.spec.js
+++ b/tests/auth.spec.js
@@ -10,8 +10,7 @@ test.afterEach(async () => {
   await stop();
 });
 
-// TODO: activate this once auth is released
-test.skip("set initial password", async ({ page }) => {
+test("set initial password", async ({ page }) => {
   const modal = page.getByTestId("password-modal");
 
   await expect(modal).toBeVisible();
@@ -34,7 +33,7 @@ test.skip("set initial password", async ({ page }) => {
   await expect(modal).not.toBeVisible();
 });
 
-test.skip("login", async ({ page }) => {
+test("login", async ({ page }) => {
   // set initial password
   const modal = page.getByTestId("password-modal");
   await modal.getByLabel("New password").fill("secret");
@@ -43,10 +42,6 @@ test.skip("login", async ({ page }) => {
 
   // go to config
   await page.getByTestId("topnavigation-button").click();
-  await page.getByRole("button", { name: "Settings" }).click();
-  await page.getByLabel("Experimental 🧪").click();
-  await page.getByRole("button", { name: "Close" }).click();
-  await page.getByTestId("topnavigation-button").click();
   await page.getByRole("link", { name: "Configuration" }).click();
 
   // login modal
@@ -66,7 +61,7 @@ test.skip("login", async ({ page }) => {
   await expect(page.getByRole("heading", { name: "Configuration" })).toBeVisible();
 });
 
-test.skip("update password", async ({ page }) => {
+test("update password", async ({ page }) => {
   const oldPassword = "secret";
   const newPassword = "newsecret";
 
@@ -103,4 +98,12 @@ test.skip("update password", async ({ page }) => {
   await loginNew.getByLabel("Password").fill(newPassword);
   await loginNew.getByRole("button", { name: "Login" }).click();
   await expect(page.getByRole("heading", { name: "Configuration" })).toBeVisible();
+
+  // revert password
+  await page.getByTestId("generalconfig-password").getByRole("link", { name: "edit" }).click();
+  await modal.getByLabel("Current password").fill(newPassword);
+  await modal.getByLabel("New password").fill(oldPassword);
+  await modal.getByLabel("Repeat password").fill(oldPassword);
+  await modal.getByRole("button", { name: "Update Password" }).click();
+  await expect(page.getByTestId("password-modal")).not.toBeVisible();
 });
diff --git a/tests/config.spec.js b/tests/config.spec.js
index d27fc5e7e3..6edeccb0f6 100644
--- a/tests/config.spec.js
+++ b/tests/config.spec.js
@@ -12,20 +12,24 @@ test.afterAll(async () => {
   await stop();
 });
 
-async function login() {
-  // TODO: uncomment this once auth is released
-  // await page.locator("#loginPassword").fill("secret");
-  // await page.getByRole("button", { name: "Login" }).click();
+async function login(page) {
+  await page.locator("#loginPassword").fill("secret");
+  await page.getByRole("button", { name: "Login" }).click();
+}
+
+async function enableExperimental(page) {
+  await page
+    .getByTestId("generalconfig-experimental")
+    .getByRole("link", { name: "change" })
+    .click();
+  await page.getByLabel("Experimental 🧪").click();
+  await page.getByRole("button", { name: "Close" }).click();
 }
 
 test.describe("basics", async () => {
   test("navigation to config", async ({ page }) => {
     await page.goto("/");
     await page.getByTestId("topnavigation-button").click();
-    await page.getByRole("button", { name: "Settings" }).click();
-    await page.getByLabel("Experimental 🧪").click();
-    await page.getByRole("button", { name: "Close" }).click();
-    await page.getByTestId("topnavigation-button").click();
     await page.getByRole("link", { name: "Configuration" }).click();
     await login(page);
     await expect(page.getByRole("heading", { name: "Configuration" })).toBeVisible();
@@ -33,6 +37,7 @@ test.describe("basics", async () => {
   test("alert box should always be visible", async ({ page }) => {
     await page.goto("/#/config");
     await login(page);
+    await enableExperimental(page);
     await expect(page.getByRole("alert")).toBeVisible();
   });
 });
@@ -41,6 +46,7 @@ test.describe("vehicles", async () => {
   test("create, edit and delete vehicles", async ({ page }) => {
     await page.goto("/#/config");
     await login(page);
+    await enableExperimental(page);
 
     await expect(page.getByTestId("vehicle")).toHaveCount(0);
     const vehicleModal = page.getByTestId("vehicle-modal");
@@ -89,6 +95,7 @@ test.describe("vehicles", async () => {
   test("config should survive restart", async ({ page }) => {
     await page.goto("/#/config");
     await login(page);
+    await enableExperimental(page);
 
     await expect(page.getByTestId("vehicle")).toHaveCount(0);
     const vehicleModal = page.getByTestId("vehicle-modal");
@@ -122,6 +129,7 @@ test.describe("vehicles", async () => {
 
     await page.goto("/#/config");
     await login(page);
+    await enableExperimental(page);
 
     await expect(page.getByTestId("vehicle")).toHaveCount(1);
     const vehicleModal = page.getByTestId("vehicle-modal");
@@ -155,6 +163,7 @@ test.describe("meters", async () => {
 
     await page.goto("/#/config");
     await login(page);
+    await enableExperimental(page);
 
     await expect(page.getByTestId("battery")).toHaveCount(0);
 
@@ -208,6 +217,7 @@ test.describe("general", async () => {
     // change value in config
     await page.goto("/#/config");
     await login(page);
+    await enableExperimental(page);
 
     await expect(page.getByTestId("generalconfig-title")).toContainText("Hello World");
     await page.getByTestId("generalconfig-title").getByRole("link", { name: "edit" }).click();
diff --git a/tests/evcc.js b/tests/evcc.js
index da69d3272e..906c300684 100644
--- a/tests/evcc.js
+++ b/tests/evcc.js
@@ -59,7 +59,10 @@ async function _start(config) {
 
 async function _stop() {
   console.log("shutting down evcc");
-  await axios.post(BASE_URL + "/api/shutdown");
+  const res = await axios.post(BASE_URL + "/api/auth/login", { password: "secret" });
+  console.log(res.status, res.statusText);
+  const cookie = res.headers["set-cookie"];
+  await axios.post(BASE_URL + "/api/system/shutdown", {}, { headers: { cookie } });
 }
 
 async function _clean() {
diff --git a/tests/logs.spec.js b/tests/logs.spec.js
new file mode 100644
index 0000000000..91bd0d902f
--- /dev/null
+++ b/tests/logs.spec.js
@@ -0,0 +1,49 @@
+import { test, expect } from "@playwright/test";
+import { start, stop } from "./evcc";
+
+test.beforeAll(async () => {
+  await start("basics.evcc.yaml", "password.sql");
+});
+test.afterAll(async () => {
+  await stop();
+});
+
+async function login(page) {
+  await page.locator("#loginPassword").fill("secret");
+  await page.getByRole("button", { name: "Login" }).click();
+}
+
+test.describe("opening logs", async () => {
+  test("via config", async ({ page }) => {
+    await page.goto("/");
+    await page.getByTestId("topnavigation-button").click();
+    await page.getByRole("link", { name: "Configuration" }).click();
+    await login(page);
+    await page.getByRole("link", { name: "Logs" }).click();
+    await expect(page.getByRole("heading", { name: "Logs", exact: false })).toBeVisible();
+  });
+  test("via notifications", async ({ page }) => {
+    await page.goto("/");
+    await page.evaluate(() => window.app.raise({ message: "Fake Error" }));
+    await page.getByTestId("notification-icon").click();
+    await page.getByRole("link", { name: "View full logs" }).click();
+    await login(page);
+    await expect(page.getByRole("heading", { name: "Logs", exact: false })).toBeVisible();
+  });
+  test("via need help", async ({ page }) => {
+    await page.goto("/");
+    await page.getByTestId("topnavigation-button").click();
+    await page.getByRole("button", { name: "Need Help?" }).click();
+    await page.getByRole("link", { name: "View logs" }).click();
+    await login(page);
+    await expect(page.getByRole("heading", { name: "Logs", exact: false })).toBeVisible();
+  });
+});
+
+test.describe("features", async () => {
+  test("content", async ({ page }) => {
+    await page.goto("/#/log");
+    await login(page);
+    await expect(page.getByTestId("log-content")).toContainText("starting ui and api at");
+  });
+});
diff --git a/tests/modals.spec.js b/tests/modals.spec.js
index d21d9f00ec..62f229327e 100644
--- a/tests/modals.spec.js
+++ b/tests/modals.spec.js
@@ -7,10 +7,9 @@ const SIMULATOR_CONFIG = "simulator.evcc.yaml";
 
 const UI_ROUTES = ["/", "/#/sessions", "/#/config"];
 
-async function login() {
-  // TODO: uncomment this once auth is released
-  // await page.locator("#loginPassword").fill("secret");
-  // await page.getByRole("button", { name: "Login" }).click();
+async function login(page) {
+  await page.locator("#loginPassword").fill("secret");
+  await page.getByRole("button", { name: "Login" }).click();
 }
 
 test.describe("Basics", async () => {
@@ -30,8 +29,8 @@ test.describe("Basics", async () => {
       }
 
       await page.getByTestId("topnavigation-button").click();
-      await expect(page.getByRole("button", { name: "General Settings" })).toBeVisible();
-      await expect(page.getByRole("button", { name: "Battery Settings" })).not.toBeVisible();
+      await expect(page.getByRole("button", { name: "User Interface" })).toBeVisible();
+      await expect(page.getByRole("button", { name: "Home Battery" })).not.toBeVisible();
       await expect(page.getByRole("button", { name: "Need help?" })).toBeVisible();
     }
   });
@@ -45,12 +44,12 @@ test.describe("Basics", async () => {
     await expect(page.getByRole("heading", { name: "Need help?" })).toBeVisible();
   });
 
-  test("General Settings", async ({ page }) => {
+  test("User Interface", async ({ page }) => {
     await page.goto("/");
     await page.getByTestId("topnavigation-button").click();
-    await page.getByRole("button", { name: "General Settings" }).click();
+    await page.getByRole("button", { name: "User Interface" }).click();
 
-    await expect(page.getByRole("heading", { name: "General Settings" })).toBeVisible();
+    await expect(page.getByRole("heading", { name: "User Interface" })).toBeVisible();
   });
 });
 
@@ -73,21 +72,21 @@ test.describe("Advanced", async () => {
       }
 
       await page.getByTestId("topnavigation-button").click();
-      await expect(page.getByRole("button", { name: "General Settings" })).toBeVisible();
-      await expect(page.getByRole("button", { name: "Battery Settings" })).toBeVisible();
+      await expect(page.getByRole("button", { name: "User Interface" })).toBeVisible();
+      await expect(page.getByRole("button", { name: "Home Battery" })).toBeVisible();
       await expect(page.getByRole("button", { name: "Need help?" })).toBeVisible();
     }
   });
 
-  test("Battery Settings from top navigation", async ({ page }) => {
+  test("Home Battery from top navigation", async ({ page }) => {
     await page.goto("/");
     await page.getByTestId("topnavigation-button").click();
-    await page.getByRole("button", { name: "Battery Settings" }).click();
+    await page.getByRole("button", { name: "Home Battery" }).click();
 
-    await expect(page.getByRole("heading", { name: "Battery Settings" })).toBeVisible();
+    await expect(page.getByRole("heading", { name: "Home Battery" })).toBeVisible();
   });
 
-  test("Battery Settings from energyflow", async ({ page }) => {
+  test("Home Battery from energyflow", async ({ page }) => {
     await page.goto("/");
     await page.getByTestId("energyflow").click();
     await page
@@ -95,6 +94,6 @@ test.describe("Advanced", async () => {
       .getByTestId("energyflow-entry-details")
       .click();
 
-    await expect(page.getByRole("heading", { name: "Battery Settings" })).toBeVisible();
+    await expect(page.getByRole("heading", { name: "Home Battery" })).toBeVisible();
   });
 });
diff --git a/util/auth/auth.go b/util/auth/auth.go
index 01597b899a..1274137efb 100644
--- a/util/auth/auth.go
+++ b/util/auth/auth.go
@@ -12,9 +12,6 @@ import (
 	"golang.org/x/crypto/bcrypt"
 )
 
-// TODO: remove this once auth is released
-const disabled = true
-
 const admin = "admin"
 
 // Auth is the Auth api
@@ -59,21 +56,11 @@ func (a *auth) RemoveAdminPassword() {
 
 // IsAdminPasswordConfigured checks if the admin password is already set
 func (a *auth) IsAdminPasswordConfigured() bool {
-	// TODO: remove this once auth is released
-	if disabled {
-		return true
-	}
-
 	return a.getAdminPasswordHash() != ""
 }
 
 // SetAdminPassword sets the admin password if not already set
 func (a *auth) SetAdminPassword(password string) error {
-	// TODO: remove this once auth is released
-	if disabled {
-		return errors.New("not implemented")
-	}
-
 	if password == "" {
 		return errors.New("password cannot be empty")
 	}
@@ -138,11 +125,6 @@ func (a *auth) GenerateJwtToken(lifetime time.Duration) (string, error) {
 
 // ValidateJwtToken validates the given JWT token
 func (a *auth) ValidateJwtToken(tokenString string) (bool, error) {
-	// TODO: remove this once auth is released
-	if disabled {
-		return true, nil
-	}
-
 	jwtSecret, err := a.getJwtSecret()
 	if err != nil {
 		return false, err
diff --git a/util/auth/auth_test.go b/util/auth/auth_test.go
index 415bff7cd7..feee9a2bd8 100644
--- a/util/auth/auth_test.go
+++ b/util/auth/auth_test.go
@@ -11,8 +11,6 @@ import (
 )
 
 func TestSetAdminPassword(t *testing.T) {
-	t.Skip("skipped until auth is released")
-
 	ctrl := gomock.NewController(t)
 	defer ctrl.Finish()
 
@@ -37,8 +35,6 @@ func TestRemoveAdminPassword(t *testing.T) {
 }
 
 func TestIsAdminPasswordValid(t *testing.T) {
-	t.Skip("skipped until auth is released")
-
 	ctrl := gomock.NewController(t)
 	defer ctrl.Finish()
 
diff --git a/util/log.go b/util/log.go
index 185c1b398f..c70297a2df 100644
--- a/util/log.go
+++ b/util/log.go
@@ -8,6 +8,7 @@ import (
 	"strings"
 	"sync"
 
+	"github.com/evcc-io/evcc/util/logstash"
 	jww "github.com/spf13/jwalterweatherman"
 )
 
@@ -18,10 +19,10 @@ var (
 	loggersMux sync.Mutex
 
 	// OutThreshold is the default console log level
-	OutThreshold = jww.LevelError
+	OutThreshold = jww.LevelWarn
 
 	// LogThreshold is the default log file level
-	LogThreshold = jww.LevelWarn
+	LogThreshold = jww.LevelTrace
 )
 
 // LogAreaPadding of log areas
@@ -57,9 +58,9 @@ func newLogger(area string, lp int) *Logger {
 		padded += " "
 	}
 
-	level := LogLevelForArea(area)
+	level := logLevelForArea(area)
 	redactor := new(Redactor)
-	notepad := jww.NewNotepad(level, level, redactor, io.Discard, padded, log.Ldate|log.Ltime)
+	notepad := jww.NewNotepad(level, level, redactor, logstash.DefaultHandler, padded, log.Ldate|log.Ltime)
 
 	logger := &Logger{
 		Notepad:  notepad,
@@ -90,11 +91,11 @@ func Loggers(cb func(string, *Logger)) {
 	}
 }
 
-// LogLevelForArea gets the log level for given log area
-func LogLevelForArea(area string) jww.Threshold {
+// logLevelForArea gets the log level for given log area
+func logLevelForArea(area string) jww.Threshold {
 	level, ok := levels[strings.ToLower(area)]
 	if !ok {
-		level = OutThreshold
+		level = LogThreshold
 	}
 	return level
 }
@@ -102,40 +103,19 @@ func LogLevelForArea(area string) jww.Threshold {
 // LogLevel sets log level for all loggers
 func LogLevel(defaultLevel string, areaLevels map[string]string) {
 	// default level
-	OutThreshold = LogLevelToThreshold(defaultLevel)
-	LogThreshold = OutThreshold
+	LogThreshold = logstash.LogLevelToThreshold(defaultLevel)
 
 	// area levels
 	for area, level := range areaLevels {
 		area = strings.ToLower(area)
-		levels[area] = LogLevelToThreshold(level)
+		levels[area] = logstash.LogLevelToThreshold(level)
 	}
 
 	Loggers(func(name string, logger *Logger) {
-		logger.SetStdoutThreshold(LogLevelForArea(name))
+		logger.SetStdoutThreshold(logLevelForArea(name))
 	})
 }
 
-// LogLevelToThreshold converts log level string to a jww Threshold
-func LogLevelToThreshold(level string) jww.Threshold {
-	switch strings.ToUpper(level) {
-	case "FATAL":
-		return jww.LevelFatal
-	case "ERROR":
-		return jww.LevelError
-	case "WARN":
-		return jww.LevelWarn
-	case "INFO":
-		return jww.LevelInfo
-	case "DEBUG":
-		return jww.LevelDebug
-	case "TRACE":
-		return jww.LevelTrace
-	default:
-		panic("invalid log level " + level)
-	}
-}
-
 var uiChan chan<- Param
 
 type uiWriter struct {
diff --git a/util/logstash/element.go b/util/logstash/element.go
new file mode 100644
index 0000000000..d2f55caebc
--- /dev/null
+++ b/util/logstash/element.go
@@ -0,0 +1,25 @@
+package logstash
+
+import (
+	"regexp"
+	"slices"
+
+	jww "github.com/spf13/jwalterweatherman"
+)
+
+type element string
+
+var re = regexp.MustCompile(`^\[([a-zA-Z0-9-]+)\s*\] (\w+) `)
+
+func (e element) areaLevel() (string, jww.Threshold) {
+	m := re.FindAllStringSubmatch(string(e), 1)
+	if len(m) != 1 && len(m[0]) != 3 {
+		return "", jww.LevelError
+	}
+	return m[0][1], LogLevelToThreshold(m[0][2])
+}
+
+func (e element) match(areas []string, level jww.Threshold) bool {
+	a, l := e.areaLevel()
+	return (len(areas) == 0 || slices.Contains(areas, a)) && l >= level
+}
diff --git a/util/logstash/levels.go b/util/logstash/levels.go
new file mode 100644
index 0000000000..00cde059d6
--- /dev/null
+++ b/util/logstash/levels.go
@@ -0,0 +1,27 @@
+package logstash
+
+import (
+	"strings"
+
+	jww "github.com/spf13/jwalterweatherman"
+)
+
+// LogLevelToThreshold converts log level string to a jww Threshold
+func LogLevelToThreshold(level string) jww.Threshold {
+	switch strings.ToUpper(level) {
+	case "FATAL":
+		return jww.LevelFatal
+	case "ERROR":
+		return jww.LevelError
+	case "WARN":
+		return jww.LevelWarn
+	case "INFO":
+		return jww.LevelInfo
+	case "DEBUG":
+		return jww.LevelDebug
+	case "TRACE":
+		return jww.LevelTrace
+	default:
+		return jww.LevelError
+	}
+}
diff --git a/util/logstash/log.go b/util/logstash/log.go
new file mode 100644
index 0000000000..062d64754f
--- /dev/null
+++ b/util/logstash/log.go
@@ -0,0 +1,110 @@
+package logstash
+
+import (
+	"container/ring"
+	"io"
+	"slices"
+	"strings"
+	"sync"
+
+	jww "github.com/spf13/jwalterweatherman"
+	"golang.org/x/exp/maps"
+)
+
+var DefaultHandler = New(10000)
+
+func Areas() []string {
+	return DefaultHandler.Areas()
+}
+
+func All(areas []string, level jww.Threshold, count int) []string {
+	return DefaultHandler.All(areas, level, count)
+}
+
+func Size() int64 {
+	return DefaultHandler.Size()
+}
+
+type logger struct {
+	mu   sync.RWMutex
+	data *ring.Ring
+}
+
+func New(size int) *logger {
+	return &logger{
+		data: ring.New(size),
+	}
+}
+
+var _ io.Writer = (*logger)(nil)
+
+func (l *logger) Write(p []byte) (n int, err error) {
+	l.mu.Lock()
+	defer l.mu.Unlock()
+
+	if !strings.HasPrefix(string(p), "[cache ]") {
+		l.data.Value = element(string(p))
+		l.data = l.data.Next()
+	}
+
+	return len(p), nil
+}
+
+func (l *logger) Size() int64 {
+	l.mu.RLock()
+	defer l.mu.RUnlock()
+
+	r := l.data
+	var size int64
+
+	for i := 0; i < r.Len(); i++ {
+		if e, ok := r.Value.(element); ok {
+			size += int64(len(e))
+		}
+		r = r.Next()
+	}
+
+	return size
+}
+
+func (l *logger) Areas() []string {
+	l.mu.RLock()
+	defer l.mu.RUnlock()
+
+	r := l.data
+
+	areas := make(map[string]struct{})
+	for range r.Len() {
+		r = r.Prev()
+		if e, ok := r.Value.(element); ok && e != "" {
+			if a, _ := e.areaLevel(); a != "" {
+				areas[a] = struct{}{}
+			}
+		}
+	}
+
+	keys := maps.Keys(areas)
+	slices.Sort(keys)
+	return keys
+}
+
+func (l *logger) All(areas []string, level jww.Threshold, count int) []string {
+	l.mu.RLock()
+	defer l.mu.RUnlock()
+
+	r := l.data
+	all := len(areas) == 0 && level == jww.LevelTrace
+
+	var res []string
+	for range r.Len() {
+		r = r.Next()
+		if e, ok := r.Value.(element); ok && e != "" && (all || e.match(areas, level)) {
+			res = append(res, string(e))
+			if count > 0 && len(res) >= count {
+				break
+			}
+		}
+	}
+
+	return res
+}
diff --git a/util/logstash/log_test.go b/util/logstash/log_test.go
new file mode 100644
index 0000000000..173092bee9
--- /dev/null
+++ b/util/logstash/log_test.go
@@ -0,0 +1,33 @@
+package logstash
+
+import (
+	"testing"
+
+	jww "github.com/spf13/jwalterweatherman"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestLog(t *testing.T) {
+	log := New(10)
+
+	s1 := "[test1 ] TRACE test1"
+	s2 := "[test2 ] ERROR test2"
+	s3 := "[test1 ] TRACE test3"
+
+	// old to new
+	log.Write([]byte(s1))
+	log.Write([]byte(s2))
+	log.Write([]byte(s3))
+
+	idx := log.data
+
+	assert.Equal(t, []string{s1, s2, s3}, log.All(nil, jww.LevelTrace, 0))
+	assert.Equal(t, []string{s1, s2, s3}, log.All([]string{}, jww.LevelTrace, 0))
+
+	assert.Equal(t, []string{s1, s3}, log.All([]string{"test1"}, jww.LevelTrace, 0))
+	assert.Equal(t, []string{s1, s2, s3}, log.All(nil, jww.LevelTrace, 0))
+	assert.Nil(t, log.All(nil, jww.LevelFatal, 0))
+
+	assert.Equal(t, idx, log.data, "data should not be changed after All() call")
+	assert.Equal(t, []string{"test1", "test2"}, log.Areas())
+}
diff --git a/util/monitor.go b/util/monitor.go
index 98693a7cbe..499dbc6270 100644
--- a/util/monitor.go
+++ b/util/monitor.go
@@ -75,6 +75,7 @@ func (m *Monitor[T]) GetFunc(get func(T)) error {
 
 			// mark as waited once
 			m.mu.Lock()
+			// TODO fix and test
 			m.updated.Add(time.Nanosecond)
 			m.mu.Unlock()