On 15/08/2019 17:53, Gert Doering wrote: > For reasons historically unknown, OpenVPN sets the listen() backlog > queue to "1", which signals the kernel "while there is one TCP connect > waiting for OpenVPN to handle it, refuse all others" - which, on > restarting a busy TCP server, will create connection issues. > > The exact "best" value of the backlog queue is subject of discussion, > but for a server that is not extremely busy with many connections > coming in in parallel, there is no real difference between "10" or "500", > as long as it's "more than 1". > > Found and debugged by "mjo" in Trac. > > Trac: #1208 > > Signed-off-by: Gert Doering <g...@greenie.muc.de>
Acked-By: David Sommerseth <dav...@openvpn.net> I agree with Antonio, and we should make it somewhat easier to modify. I'm not sure if there's value in having it as a runtime option, like --socket-backlog (or something like that), or as a value you can pass to ./configure at compile time. -- kind regards, David Sommerseth OpenVPN Inc
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