[K12OSN] ssh and a wierd problem. . .

[Les Mikesell]

On Tue, 2004-07-27 at 15:26, Doug Simpson wrote:
> Another note, Petre says the home webserver is FC1 and don't have the 
> problem.
> 
> Mine at home does hav FC1 and K12LTSP and it don;t have the problem, 
> either. . .  Just these ones here at the school.

The servers all make the same DNS query.  Some are getting answers,
some wait the 2+ minutes for a DNS timeout because of some firewalling
issue.  It may be an iptables setting on the machine itself or
it may some external firewall.  More rarely, it might be a
problem with the DNS server that handles the reverse (number to
name) lookup but normally if you can contact the server at
all you'll get a quick failure and firewalls dropping packets
cause slow timeouts.  A stock k12ltsp install has it's own
nameserver for the inside subnet so you won't see the problem
when you connect from there.

---
  Les Mikesell
   les at futuresource.com