From 7d88709f21d2768ece8166e11c4986cc6f841591 Mon Sep 17 00:00:00 2001
From: Matthew Frost <m.frost@mattronix.nl>
Date: Thu, 8 Aug 2019 12:23:18 +0200
Subject: [PATCH] Auto detect IP behind NAT.

Use openDNS to detect public IP behind NAT.
---
 openvpn-install.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/openvpn-install.sh b/openvpn-install.sh
index 136e7d9..b49dd92 100644
--- a/openvpn-install.sh
+++ b/openvpn-install.sh
@@ -179,7 +179,7 @@ else
 	if echo "$IP" | grep -qE '^(10\.|172\.1[6789]\.|172\.2[0-9]\.|172\.3[01]\.|192\.168)'; then
 		echo
 		echo "This server is behind NAT. What is the public IPv4 address or hostname?"
-		read -p "Public IP address / hostname: " -e PUBLICIP
+		IP=`dig +short myip.opendns.com @resolver1.opendns.com`
 	fi
 	echo
 	echo "Which protocol do you want for OpenVPN connections?"