On Jan 29, 2014, at 1:42 PM, Noel Jones <njo...@megan.vbhcs.org> wrote:
> On 1/29/2014 2:45 PM, Terry Barnum wrote: >> Last night our mailserver networking seemed to die. This has happened >> approximately 3 times over the last year but I haven't been able to find >> what triggers it. In yesterday's mail log just before losing networking >> there is a verizon wireless connection attempt that postscreen rejects due >> to bare newlines and command pipelining. All connection activity stops >> immediately after this. Less than a minute later dovecot drops all imap >> connections due to inactivity. I don't see anything unusual in other logs >> around this time. The machine was unreachable for the next 10 hours (there >> are a couple local cron job email attempts). When I arrived this morning I >> could not reset the network interface. Restarting the machine cleared it. I >> know it's a long shot but could the command pipelining connection attempt >> have caused this? > > It's unlikely the pipelined request caused your NIC to fail. > > I think this is more likely a driver problem or a hardware problem. > > -- Noel Jones (Oops, subject line typo, should be DOS, not OOS) Thank you Noel. I agree but the chronology sure looked suspicious so I thought I'd ask. -Terry Terry Barnum digital OutPost http://www.dop.com