Command terminated on signal 11

[Yap Tien Sieng]

Hello,

I wasn't sure what i have done to my HP-UX, but every time when i try SSH from my Windows (using Putty) into the server it log me out immediately with error message...

Server sent disconnect message:
"Command terminated on signal 11"

I can only click on the OK button and my session will then be inactive.

Hope to get some advice from you. Thank you in advance.

TSYap

[U.SivaKumar_2]

Hi,

Any error messages in /var/adm/syslog/syslog.log ?

Are you using openssh ?

Try disabling X11 forwarding in ssh and restart the sshd .

problem should not come now.

regards,
U.SivaKumar

[Yap Tien Sieng]

First of all thanks for your response.

My syslog.log shown ...
sshd[5056]: Could not reverse map address 10.x.x.x
sshd[5056]: Accepted password for myself from 10.x.x.xxx port 2710
sshd[5060]: Disconnecting: Command terminated on signal 11

My sshd_config shown X11 forwarding wasn't enable...
#X11Forwarding no

What will be the possible cause?

[U.SivaKumar_2]

Hi,

Comment this line as below in sshd config file.

#ReverseMappingCheck yes

(or) put this line

ReverseMappingCheck no

restart sshd daemon.

Hope your problem is solved now.

regards,
U.SivaKumar

[U.SivaKumar_2]

Also try stopping the sshd daemon and run it in debug mode to isolate the problem.

#sshd -d -d -d
Debug messages will be displayed on the screen

Now try using putty to connect to the ssh server in debug mode. paste the ouput here.

Does the problem comes if you connect to server using ssh command from unix .

#ssh root@localhost

regards,
U.SivaKumar

[Yap Tien Sieng]

I can't find what exact cause of the problem.

But the login back to it's normal after I remove and re-created back the user login.

Thanks for all your advice and response, appreciated your help very much.

TSYap