pick up port from port line if defined, relax digit check for port to 2-5

build/root/install.sh

@@ -202,12 +202,14 @@ if [[ $VPN_ENABLED == "yes" ]]; then
 				continue
 			fi
 
-			vpn_remote_port_cut=$(echo "${vpn_remote_line_item}" | cut -d " " -f2 | grep -P -o '^[\d]{4,5}$' || true)
-
+			vpn_remote_port_cut=$(cat "${VPN_CONFIG}" | grep -P -o '(?<=^port\s).*' || true)
+			if [[ -z "${vpn_remote_port_cut}" ]]; then
+				vpn_remote_port_cut=$(echo "${vpn_remote_line_item}" | cut -d " " -f2 | grep -P -o '^[\d]{2,5}$' || true)
 				if [[ -z "${vpn_remote_port_cut}" ]]; then
 					echo "[warn] VPN configuration file ${VPN_CONFIG} remote port is missing or malformed, assuming port '1194'" | ts '%Y-%m-%d %H:%M:%.S'
 					vpn_remote_port_cut="1194"
 				fi
+			fi
 
 			vpn_remote_protocol_cut=$(cat "${VPN_CONFIG}" | grep -P -o '(?<=^proto\s).*' || true)
 			if [[ -z "${vpn_remote_protocol_cut}" ]]; then