Is there a theoritical max amount of simultaneous connections?
By default, max-clients = 1024. But it looks like one can simply push it to a bigger value.
Of course, HDD, RAM, bandwidth and CPU are bottlenecks. But let's assume I have a BIG machine (understand Bi-Xeon / 24 CPUs / 2.6 GHz + 24GB RAM + 200Mbps bandwidth + very low activity clients), will I hit a theoritical limit?
The reason I ask is that we recently hit the 1024 clients default limit. I pushed max-clients to 2000 but we're having problems. Such as some clients disconnecting on ping-exit: It looks like they don't receive any ping from the server. Note that the problem occured on a much older server (not the one I described above) and older SW: OpenVPN 2.0.5. We never had that problem before though
We decided to switch to a fatter server assuming the limit we're hitting is HW. But we're not quite sure it will work.
(Of course, splitting the connections to 2+ different servers was decided but will take time to set up, for reasons beyond the scope of this topic).
TIA for your lights.
Serge.
