Re: can't ssh or telnet to Debian box

["Owen G. Emry" <owen@loshwomp.com>]

FYI I solved it, and the solution was the same as that of the fellow in the 
"ssh weirdness" thread.  The problem was an ISP DNS issue.  Namely, a 
reverse lookup on my IP yielded a plausible name, but a forward lookup on 
that name got nothing.  This was causing the hosts.deny file to stop telnet 
and ssh.

Double checking, I found this to be the case on all three of my ISP 
accounts (all with static IPs).    A quick call to them got forward lookups 
working again, but it seems that ISPs like to leave that off by default.

-Owen

At 18:59 2001-07-11 +0200, Joost Kooij wrote:
> On Tue, Jul 10, 2001 at 10:47:41PM -0700, Owen G. Emry wrote:
> > Yes, it's just got the default .deny and .allow files.  Can't see anything
> > wrong there.  And all other services besides ssh and telnet seem to work
> > fine.  Very frustrating!  Thanks for the suggestion, though.
>
> What does "netstat -tap" tell?  Have you tried running either
> telnet or ssh under "strace" or "ltrace"?  Have you tried running
> "tcpdump", to see what packets actually go over the wire?
>
> Cheers,
>
>
> Joost