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
