OpenVPN Support Forum

Hi all,
I am a bash-script newbie and allready quite proud that I manage to establish a openvpn connection via shell. I spent the whole day in searching ways to query if the openvpn connection is still up and to shut it down. I found several solutions, but I have no clue which one is the "gratefull" one. My goal is the following: I want a script that does the following:

• 1. as soon as the openvpn connection shuts down (e.g. because provider closes connection), immediately shutdown any network traffic and establish a new connection to another server. I have 4 possible servers, they all use the same config, I only need to change the --remote server port and that is the part that I will be able to manage.

The problem with the methods I found to shut down the connection, the tun0 device is still shown with ifconfig and if I establish a connection to another server there will be a tun1 etc (openvpn config: --dev tun) device. When I do a --dev tunVPN I am not able to open a second connection as tunVPN is still busy. And I am not sure which of the found function really showes that all network traffic goes throu openvpn.

• 2. I want to change the connection if the speed goes to low. But if I get some more advice to manage my first point, I am pretty sure, I will be able to do that on my own. I allready made a script for speedtesting.

Of course I will post my final script here if anyone else needs it.
Best regards
doc

docb wrote: ↑

Fri Sep 29, 2017 4:31 pm

The problem with the methods I found to shut down the connection, the tun0 device is still shown with ifconfig and if I establish a connection to another server there will be a tun1 etc

Without your configs this is a non-authoritative answer .. but:
Do not drop privileges with --user+group
or make sure the user you assign has the privilege to manage (IE. delete) tun devices.

Thanks for the quick answer.
My config is as follows:
Start: And the config file: