2
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?
An Phan
Posted 2015-09-04T04:17:27.493
Reputation: 121
Sounds like OpenVPN crashed. Did you check the logs? Also you say you have 8GB of RAM, but if OpenVPN is not configured to properly use the RAM the amount of physical RAM installed is fairly meaningless. – JakeGould – 2015-09-04T04:38:30.703
No I don't think it crashed – the process is still there listening to ports. Also, OpenVPN is not using much of RAM, since we're only testing the service with max 2 clients at a time. – An Phan – 2015-09-04T06:08:59.560