diff --git a/ood-portal-generator/lib/ood_portal_generator/view.rb b/ood-portal-generator/lib/ood_portal_generator/view.rb
index 608f8e05d1..e14108bec9 100644
--- a/ood-portal-generator/lib/ood_portal_generator/view.rb
+++ b/ood-portal-generator/lib/ood_portal_generator/view.rb
@@ -1,5 +1,6 @@
 require "digest/sha1"
 require "erb"
+require 'socket'
 
 module OodPortalGenerator
   # A view class that renders an OOD portal Apache configuration file
@@ -131,13 +132,31 @@ def log_filename(value,log_type)
 
     def allowed_hosts
       config_hosts = []
-      config_hosts << @servername unless @servername.nil?
+
+      add_servername_or_ips(config_hosts)
       config_hosts << @proxy_server unless @proxy_server.nil?
       config_hosts.concat(@server_aliases)
+
       return nil if config_hosts.empty?
+
       config_hosts.sort.uniq
     end
 
+    def add_servername_or_ips(config_hosts)
+      # if @servername is nil, they're trying to use ip addresses
+      if @servername.nil?
+        config_hosts.concat(ip_addresses)
+      else
+        config_hosts << @servername
+      end
+    end
+
+    def ip_addresses
+      Socket.ip_address_list.select(&:ipv4?)
+                            .reject(&:ipv4_loopback?)
+                            .map(&:ip_address)
+    end
+
     # Helper method to escape IP for maintenance rewrite condition
     def escape_ip(value)
       # Value is already escaped
diff --git a/ood-portal-generator/spec/application_spec.rb b/ood-portal-generator/spec/application_spec.rb
index bcdfdd2c1c..428ece2603 100644
--- a/ood-portal-generator/spec/application_spec.rb
+++ b/ood-portal-generator/spec/application_spec.rb
@@ -40,6 +40,7 @@
     allow(OodPortalGenerator).to receive(:debian?).and_return(false)
     allow_any_instance_of(OodPortalGenerator::Dex).to receive(:default_secret_path).and_return(dex_secret_path.path)
     allow(SecureRandom).to receive(:uuid).and_return('83bc78b7-6f5e-4010-9d80-22f328aa6550')
+    allow(Socket).to receive(:ip_address_list).and_return([Addrinfo.ip("8.8.8.8")])
   end
 
   after(:each) do
diff --git a/ood-portal-generator/spec/fixtures/ood-portal.conf.dex b/ood-portal-generator/spec/fixtures/ood-portal.conf.dex
index e6c7e1032f..6fc344cb19 100644
--- a/ood-portal-generator/spec/fixtures/ood-portal.conf.dex
+++ b/ood-portal-generator/spec/fixtures/ood-portal.conf.dex
@@ -96,7 +96,7 @@
   #
   SetEnv OOD_PUN_STAGE_CMD "sudo /opt/ood/nginx_stage/sbin/nginx_stage"
 
-  SetEnv OOD_ALLOWED_HOSTS "example.com"
+  SetEnv OOD_ALLOWED_HOSTS "8.8.8.8,example.com"
 
   #
   # Below is used for sub-uri's this Open OnDemand portal supports
diff --git a/ood-portal-generator/spec/fixtures/ood-portal.conf.maint_with_ips b/ood-portal-generator/spec/fixtures/ood-portal.conf.maint_with_ips
index 32e02fb04f..a1e3b83db7 100644
--- a/ood-portal-generator/spec/fixtures/ood-portal.conf.maint_with_ips
+++ b/ood-portal-generator/spec/fixtures/ood-portal.conf.maint_with_ips
@@ -78,7 +78,7 @@
   #
   SetEnv OOD_PUN_STAGE_CMD "sudo /opt/ood/nginx_stage/sbin/nginx_stage"
 
-  SetEnv OOD_ALLOWED_HOSTS "example.com"
+  SetEnv OOD_ALLOWED_HOSTS "8.8.8.8,example.com"
 
   #
   # Below is used for sub-uri's this Open OnDemand portal supports
diff --git a/ood-portal-generator/spec/fixtures/ood-portal.conf.nomaint b/ood-portal-generator/spec/fixtures/ood-portal.conf.nomaint
index 61a4c61287..3f41a024e1 100644
--- a/ood-portal-generator/spec/fixtures/ood-portal.conf.nomaint
+++ b/ood-portal-generator/spec/fixtures/ood-portal.conf.nomaint
@@ -69,7 +69,7 @@
   #
   SetEnv OOD_PUN_STAGE_CMD "sudo /opt/ood/nginx_stage/sbin/nginx_stage"
 
-  SetEnv OOD_ALLOWED_HOSTS "example.com"
+  SetEnv OOD_ALLOWED_HOSTS "8.8.8.8,example.com"
 
   #
   # Below is used for sub-uri's this Open OnDemand portal supports
diff --git a/ood-portal-generator/spec/fixtures/output/auth.conf b/ood-portal-generator/spec/fixtures/output/auth.conf
index 59c4715b4c..891cd7edba 100644
--- a/ood-portal-generator/spec/fixtures/output/auth.conf
+++ b/ood-portal-generator/spec/fixtures/output/auth.conf
@@ -76,7 +76,7 @@
   #
   SetEnv OOD_PUN_STAGE_CMD "sudo /opt/ood/nginx_stage/sbin/nginx_stage"
 
-  SetEnv OOD_ALLOWED_HOSTS "example.com"
+  SetEnv OOD_ALLOWED_HOSTS "8.8.8.8,example.com"
 
   #
   # Below is used for sub-uri's this Open OnDemand portal supports
diff --git a/ood-portal-generator/spec/fixtures/output/auth_deb.conf b/ood-portal-generator/spec/fixtures/output/auth_deb.conf
index 7c23c7d4af..e7a7099f62 100644
--- a/ood-portal-generator/spec/fixtures/output/auth_deb.conf
+++ b/ood-portal-generator/spec/fixtures/output/auth_deb.conf
@@ -76,7 +76,7 @@
   #
   SetEnv OOD_PUN_STAGE_CMD "sudo /opt/ood/nginx_stage/sbin/nginx_stage"
 
-  SetEnv OOD_ALLOWED_HOSTS "example.com"
+  SetEnv OOD_ALLOWED_HOSTS "8.8.8.8,example.com"
 
   #
   # Below is used for sub-uri's this Open OnDemand portal supports
diff --git a/ood-portal-generator/spec/update_ood_portal_spec.rb b/ood-portal-generator/spec/update_ood_portal_spec.rb
index 035a703120..ebc1a439b5 100644
--- a/ood-portal-generator/spec/update_ood_portal_spec.rb
+++ b/ood-portal-generator/spec/update_ood_portal_spec.rb
@@ -35,6 +35,7 @@
     allow(OodPortalGenerator).to receive(:apache_group).and_return('apache')
     allow(OodPortalGenerator).to receive(:debian?).and_return(false)
     allow(OodPortalGenerator).to receive(:fqdn).and_return('example.com')
+    allow(Socket).to receive(:ip_address_list).and_return([Addrinfo.ip("8.8.8.8")])
   end
 
   after(:each) do