cna't ssh localhost

[Eugene M. Minkovskii]

Hi, I'm in trubble now, and don't know what to think about...

I'm install FreeBDS 5.3. stable from DVD iso. This is fresh
system: I'm not recompile the kernel and working with GENERIC
kernel. This means that I don't use any firewall and ip filter.

Now, I configure net interface in /etc/rc.conf:

<...>
ifconfig_rl0="inet 172.16.0.2 netmask 255.255.255.252"
defaultrouter="172.16.0.1"
<...>

then I type following

$ ssh 127.0.0.1

But connection hang up, of course, I can't do ssh from gateway
(172.16.0.1) to localhost (172.16.0.2) too.

########
# BUT! #
########

If I comment line with defaultrouter in rc.conf:

<...>
ifconfig_rl0="inet 172.16.0.2 netmask 255.255.255.252"
#defaultrouter="172.16.0.1"
<...>

and reboot, connecion working good: ssh 127.0.0.1 work, and ssh
from gateway to local mashine work good.

If I, after that type manually

$ sudo route add 0.0.0.0 172.16.0.1

connection to loop interface hangs again.

Have you any ideas?

--
Sensory yours, Eugene Minkovskii
óÅÎÓÏÒÎÏ ×ÁÛ, å×ÇÅÎÉÊ íÉÎØËÏ×ÓËÉÊ

[Jed Clear]

Just off the top of my head, check that your DNS is working. My guess
is that the sshd is trying to do a reverse DNS lookup, when you have the
network configured. It takes a looooong time for a DNS lookup to time
out.

Try the ssh, wait at least 30 seconds (the DNS time out, IIRC). If it
succeeds then, it's likely DNS related.

-Jed

[Lowell Gilbert]

"Eugene M. Minkovskii" <emin@mccme.ru> writes:

> $ ssh 127.0.0.1
>
> But connection hang up, of course, I can't do ssh from gateway
> (172.16.0.1) to localhost (172.16.0.2) too.

Try "ssh -v" and let ssh tell you what the problem is.

It's almost certainly DNS-related, as other messages have mentioned,
but there are a few possibilities as far as the specifics.

--
Lowell Gilbert, embedded/networking software engineer, Boston area
[url]http://be-well.ilk.org/~lowell/[/url]