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Route traffic only for processes that bind to tun0 (Linux)
Posted: Thu Aug 18, 2022 2:21 pm
by ManuHry
Hi all,
I would need to use OpenVPN for a few processes only, not for all my Linux system.
These processes can bind to tun0 directly, forcing them to use VPN only.
I thought I could accomplish that with 2 steps :
- include "route-nopull" in my client config file
- bind my processes to tun0
Could you tell me if this is the "right way" to proceed ?
Or do I have to use a more optimized solution ?
Thanks in advance and best regards
Re: Route traffic only for processes that bind to tun0 (Linux)
Posted: Thu Aug 18, 2022 5:37 pm
by TinCanTech
ManuHry wrote: ↑Thu Aug 18, 2022 2:21 pm
Could you tell me if this is the "right way" to proceed ?
That is the
wrong way to proceed.
Re: Route traffic only for processes that bind to tun0 (Linux)
Posted: Thu Aug 18, 2022 5:50 pm
by ManuHry
TinCanTech wrote: ↑Thu Aug 18, 2022 5:37 pm
ManuHry wrote: ↑Thu Aug 18, 2022 2:21 pm
Could you tell me if this is the "right way" to proceed ?
That is the
wrong way to proceed.
Hi @TinCanTech, thanks for your answer.
Do you know a better way, or best-practice ?
It works by my side with some provider (I made traceroute comparisons), but I cannot evaluate performance.
Re: Route traffic only for processes that bind to tun0 (Linux)
Posted: Thu Aug 18, 2022 5:53 pm
by TinCanTech
Openvpn does not work the way you want. --
route-nopull will break your VPN completely.
Edit: Your OS does not work that way either, you need another app to do
packet filtering by application.
ManuHry wrote: ↑Thu Aug 18, 2022 5:50 pm
Do you know a better way, or best-practice ?
https://community.openvpn.net/openvpn/wiki/HOWTO