fix: edit hostname

i-prox-deb-1-of-3.sh

@@ -11,6 +11,9 @@ GATEWAY=$(ip route | grep default | awk '{print $3}')
 IP_ADDRESS=$(echo "$IP_CIDR" | cut -d'/' -f1)
 CIDR=$(echo "$IP_CIDR" | cut -d'/' -f2)
 
+read -p "Enter the new host name: " NEW_HOSTNAME
+CURRENT_HOSTNAME=$(hostname)
+
 #Configure the network /ect/network/interfaces and create backup of old one
 cat > ~/interfaces << EOF
 auto lo
@@ -30,6 +33,15 @@ source /etc/network/interfaces.d/*
 
 EOF
 
+# Update /etc/hostname
+echo "$NEW_HOSTNAME" > /etc/hostname
+
+# Update /etc/hosts
+sed -i "s/\b$CURRENT_HOSTNAME\b/$NEW_HOSTNAME/g" /etc/hosts
+
+# Set the hostname immediately without requiring a reboot
+hostnamectl set-hostname "$NEW_HOSTNAME"
+
 #Add Repository 
 echo "deb [arch=amd64] http://download.proxmox.com/debian/pve bookworm pve-no-subscription" > /etc/apt/sources.list.d/pve-install-repo.list
 
@@ -42,4 +54,4 @@ apt update && apt full-upgrade -y
 #Install Proxmox kernel and reboot
 apt install proxmox-default-kernel -y
 sysctl -w kernel.panic=10
-reboot now
+reboot now