These machines are all gigabit ethernet and connected to the same gigabit switch with little network traffic at the time of these attempts.
On Fri, Jun 17, 2011 at 6:23 AM, Joseph Sinclair <plug-discussion@stcaz.net> wrote:
A connection timed out usually occurs due to:
1) The ip address has no host (ping the same IP address, then use telnet to connect to port 22)
I realized after sending the message I should have included the successful ping of lapdog2 which was done by name. Telnet also fails.
2) tcp wrappers is dropping the connection (check /et/hosts.allow and /etc/hosts.deny on lapdog3)
Nothing but comments in either file.
3) the firewall on lapdog3 is dropping the connection (check the firewall configuration on lapdog3 via iptables-save or ufw status)
ufw status was inactive at that time. As far as I can tell this morning, iptables says nothing about port 22 or ssh though last night I could have sworn it did and said to accept. In any case, I get the same result this morning though I am on a different machine trying to ssh to lapdog2.
4) SSHD is not on port 22 or dropping connections (check sshd configuration on lapdog3)
It is using port 22. I do not know how to check for dropping connections. I did check syslog and dmesg/messages. NOTE: lapdog2 is able to ssh to this machine but then ssh'ing back to lapdog 2 gives the same results as doing it directly on this machine.
> ---------------------------------------------------
On 06/17/2011 02:14 AM, Dazed_75 wrote:
> Ignore the original question. I checked lapdog2's IP in a terminal that was
> logged into a different machine. The ssh was using the right IP but getting
> this result and I cannot figure out why:
>
> larry@hammerhead:~$ ssh -v lapdog2
>> OpenSSH_5.8p1 Debian-1ubuntu3, OpenSSL 0.9.8o 01 Jun 2010
>> debug1: Reading configuration data /etc/ssh/ssh_config
>> debug1: Applying options for *
>> debug1: Connecting to lapdog2 [192.168.2.124] port 22.
>> debug1: connect to address 192.168.2.124 port 22: Connection timed out
>> ssh: connect to host lapdog2 port 22: Connection timed out
>> larry@hammerhead:~$
>>
>
>
> On Fri, Jun 17, 2011 at 2:00 AM, Dazed_75 <lthielster@gmail.com> wrote:
>
>> I tried to ssh from this machine to my laptop (ssh lapdog3) and find that
>> ssh is somehow using an old IP instead of doing name resolution on th e name
>> lapdog2 which now has a new lease on a different IP.
>>
>> 1) How do I fix this?
>> 2) Why does ssh use an old, apparently, stored IP?
>>
>> --
>> Dazed_75 a.k.a. Larry
>>
>> The spirit of resistance to government is so valuable on certain occasions,
>> that I wish it always to be kept alive.
>> - Thomas Jefferson
>>
>
>
>
>
>
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--Dazed_75 a.k.a. Larry
The spirit of resistance to government is so valuable on certain occasions, that I wish it always to be kept alive.
- Thomas Jefferson
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