Allow user to specify DNS when setting static IP

debian-config-functions-network

@@ -351,15 +351,16 @@ function netmask_to_cidr ()
 #
 function nm_ip_editor ()
 {
+	dns=$gateway
 
-exec 3>&1
-	dialog --title " Static IP configuration" --backtitle "$BACKTITLE" --form "\nAdapter: $1
-	\n " 12 38 0 \
+	exec 3>&1
+	dialog --title " Static IP configuration" --backtitle "$BACKTITLE" --form "\nAdapter: $1 \n " 13 38 0 \
 	"Address:"    1 1 "$address"    1 15 15 0 \
 	"Netmask:"    2 1 "$netmask"    2 15 15 0 \
 	"Gateway:"    3 1 "$gateway"    3 15 15 0 \
+	"DNS:"        4 1 "$dns"        4 15 15 0 \
 	2>&1 1>&3 | {
-		read -r address;read -r netmask;read -r gateway
+		read -r address;read -r netmask;read -r gateway; read -r dns
 		if [[ $? = 0 ]]; then
 			localuuid=$(LC_ALL=C nmcli -f UUID,DEVICE connection show | grep $1 | awk '{print $1}')
 			# convert netmask value to CIDR if required
@@ -372,14 +373,14 @@ exec 3>&1
 				# adjust existing
 				nmcli con mod $localuuid ipv4.method manual ipv4.addresses "$address/$CIDR" >/dev/null 2>&1
 				nmcli con mod $localuuid ipv4.method manual ipv4.gateway  "$gateway" >/dev/null 2>&1
-				nmcli con mod $localuuid ipv4.dns "8.8.8.8,$gateway" >/dev/null 2>&1
+				nmcli con mod $localuuid ipv4.dns "$dns,$gateway" >/dev/null 2>&1
 				nmcli con down $localuuid >/dev/null 2>&1
 				sleep 2
 				nmcli con up $localuuid >/dev/null 2>&1
 			else
 				# create new
 				nmcli con add con-name "armbian" ifname "$1" type 802-3-ethernet ip4 "$address/$CIDR" gw4 "$gateway" >/dev/null 2>&1
-				nmcli con mod "armbian" ipv4.dns "8.8.8.8,$gateway" >/dev/null 2>&1
+				nmcli con mod "armbian" ipv4.dns "$dns,$gateway" >/dev/null 2>&1
 				nmcli con up "armbian" >/dev/null 2>&1
 			fi
 		fi