Update OpenVPN remotes for vpntunnel endpoints with IP addresses instead of FQDN as resolving fails from time to time

gistfile1.sh

#!/bin/sh

[ $# -lt 1 ] && exit 1

tunnel="jenny.vpntunnel.se"
ovpntmp="/tmp/openvpn.conf-tmp"
ovpncnf=$1

host -t a ${tunnel} >/dev/null 2>&1 || exit 1

sed '/^remote\ /d' "${ovpncnf}" > "${ovpntmp}"

for ip in `host -t a ${tunnel}|grep -oE [0-9\.]+$`
do
        for port in `seq 7001 7004`
        do
                echo remote ${ip} ${port} >> "${ovpntmp}"
        done
done

cp -f "${ovpntmp}" "${ovpncnf}"
kill -HUP `cat /var/run/openvpn.pid`