Set domain name via Settings page

advanced/Scripts/webpage.sh

@@ -172,8 +172,23 @@ SetWebUILayout(){
 
 }
 
-for var in "$@"; do
-	case "${var}" in
+SetDNSDomainName(){
+
+	# Remove setting from file (create backup setupVars.conf.bak)
+	sed -i.bak '/PIHOLE_DOMAIN/d;' /etc/pihole/setupVars.conf
+	# Save setting to file
+	echo "PIHOLE_DOMAIN=${args[2]}" >> /etc/pihole/setupVars.conf
+
+	# Replace within actual dnsmasq config file
+	sed -i '/domain=/d;' /etc/dnsmasq.d/01-pihole.conf
+	echo "domain=${args[2]}" >> /etc/dnsmasq.d/01-pihole.conf
+
+	# Restart dnsmasq to load new configuration
+	RestartDNS
+
+}
+
+case "${args[1]}" in
 	"-p" | "password"   ) SetWebPassword;;
 	"-c" | "celsius"    ) unit="C"; SetTemperatureUnit;;
 	"-f" | "fahrenheit" ) unit="F"; SetTemperatureUnit;;
@@ -187,8 +202,9 @@ for var in "$@"; do
 	"disabledhcp"       ) DisableDHCP;;
 	"layout"            ) SetWebUILayout;;
 	"-h" | "--help"     ) helpFunc;;
-	esac
-done
+	"domainname"        ) SetDNSDomainName;;
+	*                   ) helpFunc;;
+esac
 
 shift