Up till now I haven't had the time or energy to put into sniffing or debugging at all. But it's getting to be a pain in the @ss, that's why I'm trying to see if anyone else has these issues. Here are the locations and hardware: Home: comcast with linksys cable/dsl router, hard wired (no wifi), brand new cables, tried multiple cable/dsl routers Work (over a month ago): over 3 bonded T1 ATM circuits (from local ISP), using linux hardware firewall, 10/100/1000 Dell poweredge switches, some servers locally, some servers at remote Tier1 datacenters Work (recently): upgraded connection to 10MBit fractional DS3 from Verizon Business (MCI circuit) Friends house: dlink cable/dsl router, hard wired -matt On 7/12/07, Dave K <davek08054 at gmail.com> wrote: > On 7/12/07, Matt Shields <mattboston at gmail.com> wrote: > > > No session doesn't come back ever. It just hangs permanently. > > Curiouser and curiouser. > > My first thought would be a firewall/router/switch timing out, but > that typically happens for idle sessions, and you said somewhere that > this is happening during activity. And of course you said this > happens from multiple source locations and multiple destinations, that > does make it harder to think a network element would be the cause. > > I have active ssh sessions between various Linux systems that have up > for weeks (or months), with no issues. > > Have you ever tried sniffing for network traffic related to a hung session? > > -- > Dave K > Unix Systems & Network Administrator > Mount Laurel NJ > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos >