I am running OpenVPN 2.3.1 with a fairly basic configuration. The daemon has been up in it's current configuration for ~180 days. Earlier this week I began to get connection failures to find out the connection limit has been reached. Status on the management terminal shows two different users with > 50 connections each. A TCP dump shows that those connections are not active, but are still established. No error messages reveal any possible problems.
Why isn't OpenVPN closing the dead sockets?
Relevant config options may be:
duplicate-cn
crl-verify keys/crl.pem
keepalive 10 120
