Author: Sean Gibbins Date: To: Hampshire LUG Discussion List Subject: Re: [Hampshire] unable to connect from one system to another using
ssh
john lewis wrote: > On Tue, 16 Feb 2010 12:43:01 +0000
> Stephen Rowles <stephen@???> wrote:
>
>
>> On 02/16/2010 12:05 PM, john lewis wrote:
>>
>>> I know want to run unison on landing to synchronise the geneweb
>>> directory on landing with a geneweb directory on benden and for
>>> this I need to be able to setup ssh on landing to allow "ssh benden"
>>>
>>> But I get an error message
>>> ssh: connect to host benden port 22: Connection timed out
>>>
>>>
>> Some simple diagnostics to get further with this problem.
>>
>> First is to isolate the source of the problem, whether it is SSH, or
>> simply the network / DNS.
>>
>> Try using telnet to connect to the port instead, for example, if I
>> connect to my local machine on port 22, I get the following, which
>> clearly shows that OpenSSH is running.
>>
>> ]$ telnet localhost 22
>> Trying 127.0.0.1...
>> Connected to localhost.
>> Escape character is '^]'.
>> SSH-2.0-OpenSSH_5.2
>> ^]
>> telnet> close
>> Connection closed.
>>
>> However if I try and connect to a port with nothing running I get:
>>
>> ]$ telnet localhost 1234
>> Trying 127.0.0.1...
>> telnet: connect to address 127.0.0.1: Connection refused
>>
>> As well as doing this, you can check the IP address that is returned,
>> it may be that you are not resolving the right IP address for the
>> machine.
>>
>> Those are good starting points
>>
>
> I don't have telnet installed on any of my systems but I can 'ping
> benden' from landing with no problems.
Hi John,
It's only the client you need, not the telnet service.
It's a useful diagnostic test that will show you not only if the host is
up but also if the (ssh) service is listening.
Sean
--
And I've made disapointment
My very best friend
