Re: cannot ssh from outside network



Did you check TCP wrappers on 137.131.252.71? (hosts.deny / hosts.allow)
Also, as others suggested, make sure firewall lets through ssh traffic.

V

On 8/3/06, Manuel Arostegui Ramirez <manuel@xxxxxxxxxxxxxx> wrote:

El Jueves, 3 de Agosto de 2006 01:11, Paula J. Lindsay escribió:
> Hi,
> I have a redhat 9 box.
>

You should upgrade your box, RH 9.0 is quite old.

> I tried to connect to the redhat 9 box from a machine outside our
network
> and got the following... 101 worf: ssh -l spooner 137.131.252.71
> ssh_exchange_identification: Connection closed by remote host
>

Use ssh -l spooner 137.131.252.71 -v -v -v
In order to debug find out what's wrong in the autenthication proccess.

> And the following packet capture from inside of our firewall shows
> that born receives the connection and then refuses it with a Fin
packet...
> 15:51:13.740835 192.42.82.56.1401 > 137.131.252.71.22: S
> 15:51:13.744082 137.131.252.71.22 > 192.42.82.56.1401: S
> 15:51:18.821897 137.131.252.71.22 > 192.42.82.56.1401: F
>
> A connection attempt from within our network is successful. Maybe
> this machine is treating hosts from outside of our 137.131 IP space
> differently? Can someone help me?
> Many thanks in advance.
> Paula

Is that box behind a firewall? If so, take a look at those logs.

Greetings.

--
Manuel Aróstegui Ramírez.

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be used for urgent or sensitive issues.

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