For backup purposes I set up a script that first pings the target network for testing purposes, then starts a VPN connection via openvpn and finally mounts a shared folder in the remote network through that VPN connection.
After a backup has been finished, the folder is unmounted and the VPN connection is closed.
This worked fine for about 3 days. As of now pinging the network works, the VPN connection works, but the mount command has a time out after approximately 2 minutes, only stating "timed out".
A colleague of mine assumes problems with one of the routers, either local or remote network one.
How can I properly determine the reason for the time out? As far as we know, the router settings weren't changed on either network. I already checked for some possible problems with mount, but most solutions assume that it didn't work before.
Edit1: As requested, here are the two scripts (connecting and disconnecting are in seperate scripts). IP is redacted.
Starting:
#!/bin/bash
ping -c 4 XXX.XXX.XXX.1
sleep 5s
echo 'starting VPN connection'
openvpn --config /etc/openvpnconfig/openvpn.ovpn --daemon --auth-nocache --auth-retry none
echo 'OpenVPN started'
sleep 20s
echo 'mount'
if mountpoint -q /mnt/remote; then
exit 0
else
mount /mnt/remote
fi
The script checks if the mounpoint already exists to avoid error output in that case.
Then the Backup System (bacula) does its job.
Disconnecting:
#!/bin/bash
umount /mnt/remote
output=`ps aux|pgrep openvpn`
set -- $output
pid=$2
kill $pid
