We have an OpenVPN Access Server (OpenVPN AS) installed on one of our bare metal servers. The service runs fine, but after a while—indefinitely, maybe hours, maybe a day—it just hangs. The process is still there, but connection can’t be estabished, and the web interface can’t be accessed (timed out).
These are the steps I took, all failed to solve the issue:
- Allow OpenVPN-related ports in
iptables - Disallow OpenVPN to modify
iptables - Shut down
iptables(!) - Switch OpenVPN protocol to TCP / UDP.
There’s this post whose OP had a very similar issue, but his cause was lacking of memory. Mine is not the case, since we have a lot of memory left (it’s a 8GB of RAM box).
Anyone here has encountered this before and can share a solution/direction?
