ssh connection disconnected while ip pinging.

Hasnat Raza · 06-15-2012, 02:55 AM

hi LQ Forum,
I am facing strange problem.I have an ibm blade server installed Red hat 5 on it. Whenever i connect it with SecureCRT or Putty it disconnect after some time and after hitting few times to get session. It responds and login.When session disconnect the server ip still pinging sucessfully.

One thing which i observed that when i start ping to that server with '-t ' (ping ip-address -t), the ssh session never disconnect.
Please guide me whats going wrong.
Thanks for everyone.

bakdong · 06-15-2012, 03:38 AM

Are you, by any chance, using an ADSL connection with an idle timeout?

Hasnat Raza · 06-15-2012, 04:22 AM

no i am not using any internet connection or ADSL on it.

bakdong · 06-15-2012, 04:30 AM

I've never experienced this problem, but found this link http://nileshbansal.blogspot.com/200...ts-in-ssh.html which refers to router idle timeouts and client and server alive interval and countmax:

ClientAliveInterval 30
ClientAliveCountMax 4
ServerAliveInterval 30
ServerAliveCountMax 4

Also check that it's not the shell timing you out with TMOUT or whatever.

Hasnat Raza · 06-15-2012, 04:36 AM

i have tried it but problem not resolved. thx for reply

suicidaleggroll · 06-15-2012, 09:46 AM

Any sshd error messages on the server?

Hasnat Raza · 06-15-2012, 04:32 PM

just show that connection disconnected, after some hits he allow me to again login.
Otherwise no error show to me where i guess whats actual problem.
As i mention in thread that when i start ping command on client server then server never disconnected. Mean some strike on server issue.
Thanks for reply suicidaleggroll & bakdong

EDDY1 · 06-15-2012, 10:45 PM

Do you have access to the router that the server is connected to?
My router when logged in I can see all devives connected & ping them if they have network connectitvity.

mannmaniyar · 06-16-2012, 12:31 AM

Do you have any time out settings on the server. Also check in Putty setting under the Category - Connection, that number in "seconds between keepalives" is set to 0.

subho.d · 06-16-2012, 01:37 AM

You can try this below tool :

http://linux.softpedia.com/get/Termi...erm-1781.shtml

Hasnat Raza · 06-19-2012, 02:02 AM

@ EDDY1, i hav ping on router server its pinging sucessfully.
@ mannmaniyar, putty settings its already set to '0'
thx for answering.

EDDY1 · 06-20-2012, 03:09 AM

Have you tried

Quote:

ssh user@ip-address

user=your user name
ip-address=ip for machine

Hasnat Raza · 06-20-2012, 03:05 PM

@ EDDY1, acrually i m using secureCrt and putty so the problem come over here.
@ subho.d., i hav downloaded it but not installed sucessfully.
thanks u very much

bakdong · 07-02-2012, 11:31 PM

Still have the problem? I would turn on the logging in your ssh client and see if that gives you any clues.

Hasnat Raza · 07-05-2012, 01:45 AM

@ bakdong, Ya i still have problem. actually u cant login because its not on internet. i will send you log which you want. thx for answering.