On Thu, Oct 19, 2006 at 11:31:59PM -0400, Bill wrote:
> I have had a problem with a new OpenVPN server on an OpenBSD box. I
> have solved the problem (I think) but was looking for some insight as
> to why this solved it.
>
> The problem was with the "ping" that happens between OpenVPN endpoints
> not being returned and the connection resetting every minute or so.
>
> One suggested issue was that perhaps there was a lot of large transfers
> or heavy traffic that caused it to not respond in time... So I took a
> look at it late one night... One one computer I was watching it drop
> and reconnect. On the console I was watching a netstat dump which
> showed between 1 to 9 pkts a second. (This is respectable
> hardware with gigabit cards). So maybe it was some service running...
> so I hit up vmstat and aside from the random tumbleweed, all was dead
> quiet. top showed nothing going on.
>
> Anyway, in the end I started the OpenVPN server with "nice -1" which
> has seemed to work. I've not had a drop in about 48 hours straight.
>
> My question is - on a dead quiet box, how could bumping the priority
> just a tad help? I've asked for idea's on the OpenVPN list, but no
> answer.
I don't see how that would help, either. And OpenVPN shouldn't drop
sessions under load, and in fact doesn't for most of us.
Strange...
Joachim
