Hi,

Iam unable to ssh to remote host with normal user, but wher i can ssh to remote host with root user. Below is the error iam getting while trying to ssh with normal user.

log@localhost:~> ssh cst@remotehost
cst@remotehost's password:
Segmentation fault
log@localhost:~>


/var/log/messages log
kernel: ssh[3401]: segfault at 00000000000000c0 rip 00002ac746c37d39 rsp 00007fff6431d5a0 error 4

using root i can ssh to remote host

root@localhost:~ # ssh remotehost -lcst
cst@remotehost's password:
Last login: Wed Jul 31 14:57:35 2013 from 192.168.60.86
cst@remotehost:~>


Please help to resolve the issue,

Regards
SUresh

HI suresh

can you post output of below command?

ssh -v cst@remotehost

======
sunil

HI SUNIL,
Here is the OutPut

log@localhost:~/.ssh> ssh -v cst@remotehost
OpenSSH_4.2p1, SSH protocols 1.5/2.0, OpenSSL 0x0090709f
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Rhosts Authentication disabled, originating port will not be trusted.
debug1: Connecting to remoteip [remoteip] port 22.
debug1: Connection established.
debug1: identity file /home/log/.ssh/identity type -1
debug1: identity file /home/log/.ssh/id_rsa type 1
debug1: identity file /home/log/.ssh/id_dsa type -1
debug1: Remote protocol version 1.99, remote software version OpenSSH_4.2p1
debug1: match: OpenSSH_4.2p1 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_4.2p1
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-cbc hmac-md5 none
debug1: kex: client->server aes128-cbc hmac-md5 none
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
debug1: Host 'remoteip' is known and matches the RSA host key.
debug1: Found key in /home/log/.ssh/known_hosts:15
debug1: ssh_rsa_verify: signature correct
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey,password,keyboard-interactive
debug1: Next authentication method: publickey
debug1: Trying private key: /home/log/.ssh/identity
debug1: Offering public key: /home/log/.ssh/id_rsa
debug1: Authentications that can continue: publickey,password,keyboard-interactive
debug1: Trying private key: /home/log/.ssh/id_dsa
debug1: Next authentication method: keyboard-interactive
debug1: Authentications that can continue: publickey,password,keyboard-interactive
debug1: Next authentication method: password
cst@remotehost's password:
Segmentation fault


Thanks
Suresh

Hi suresh,

Did you try to login it by putty directly instead of trying to ssh from other server???

And also login as root user and then use

su - normal_user_name. Check it is working or not??

Thanks
======
sunil

from my machine i can ssh to remote host with normal user, but i can't ssh from another machine where i want to push ssh key's to remote host.

Same thing that iam doing sunil,
I am trying to ssh from su - normal user itself.

Hi suresh

Check $HOME/.ssh/known_hosts file on remote machine, you should have key for server from which you are trying to ssh remote server.


Thanks
======
sunil

Hi Sunil,

I think no need of key on remote host, after ssh only that key will generate on remote host automatically.

Regards
Suresh

Hi suresh,

Yes, you are right that it will generate key automatically but i was asking that is it present or not?
If there is problem with that key then I think you can generate new ssh key for that user and try to ssh.

OK
Yes there is a key on remote host of which i am connecting from.
And i removed it and connected again, and again key has generated on remote machine.
Still same problem.


Regards
Suresh

Hi suresh,

Can you generate new key for your machine by ssh-keygen command and then try it again?

Thanks
======
sunil

Hi Sunil,

Generated new ssh-keygen and manually copied to remote host, Appended id_rsa.pub file on autorized_keys file, but still we are unable to ssh.


Thanks
Suresh

Hi suresh,

It is not necessary to append key to authorized_key file because you are not making password less connection.You have to just generate new ssh key on machine from which you are trying to ssh remote machine.

Thanks
======
sunil

OK
Done the same as u suggested, but still no luck.

Suresh

Reinstall the openssh.