Ubuntu 10.10 Network problems

[Ric Moore]

On Mon, 2010-11-08 at 02:19 +0530, Sandip Bhattacharya wrote:
> On Thu, Nov 04, 2010 at 12:08:45AM -0500, MirJafar Ali wrote:
> > Our machine uses ethernet only. It was working perfectly alright before I
> > installed sshd and tightvnc
> > today.
> > 
> > By the way, is there anyway to bring the machine to some old state, say few
> > hours early state, so
> > that I can know what changes caused the problems.
> 
> As Ric said, it is unlikely that IPV6 is causing these issues. Given
> that ipv6 will start getting enforced in the next couple of months
> because of ipv4 addresses running out very shortly, it is actually
> advisable to keep it enabled so that you don't miss out on the action to
> come. :)
> 
> It seems more likely that you are having DNS related issues in your
> setup. 
> 
> sshd requires reverse dns of incoming addresses, so try out
> disabling this at first, by adding the line "UseDNS no" in
> /etc/ssh/sshd_config and restarting sshd.
> 
> Examine /etc/resolv.conf. Do they have the correct DNS servers for your
> network? Can you successfully ping the DNS servers?
> 
> - Sandip

I thought he wrote that he had zero entry in /etc/resolv.conf. If he's
lucky he'll have a backup file (resolv.conf~) in there with the correct
IP addresses to use. It sure won't float without them. Ric

-- 
My father, Victor Moore (Vic) used to say:
"There are two Great Sins in the world...
..the Sin of Ignorance, and the Sin of Stupidity.
Only the former may be overcome." R.I.P. Dad.
Linux user# 44256