[Fedora-infrastructure-list] Hardware Trouble (?) on app1.fedora.phx.redhat.com

[Mike McGrath]

On 9/11/06, Luke Macken <lmacken at redhat.com> wrote:
> On Sun, Sep 10, 2006 at 08:49:13PM -0400, Jeffrey Tadlock wrote:
> > Warren Togami wrote:
> > > Both before and after the data center migration to a new rack and new
> > > switch, we have occasionally been experiencing network trouble to
> > > app1.fedora.phx.redhat.com.
> > >
> > > Since this happened both before and after the new switch, could this
> > > perhaps be hardware trouble?
> > >
> > > Any opinions of what we should do about this?  Perhaps...
> > >
> > > - More closely monitor, with ping logs over time?
> >
> > Closer monitoring would probably be good.  Seeing what is happening from
> > the console when these unusual events occur might also provide some
> > insight as to what is really happening.  From the IRC log it looks like
> > lmacken was able to produce some "oddities" with an nmap scan of app1
> > and trying to flush iptables?
>
> I have experienced this issue with a couple of other machines in the
> colo, although I cannot remember exactly which ones (proxy[1-4] iirc).
>

I think Stacy replaced our switch, have we experienced these issues on
the new switch?  Also I know that bastion (and others) had iptables
rules that caused burst limits to get dropped.  For example if you
logged in and did a "cat /var/log/messages" eventually the connection
would hang.

       -Mike