Secure Shell
ssh hangs after SSH2_MSG_SERVICE_ACCEPT Jul 25 2010 06:57AM
Kosala Atapattu (kosala atapattu gmail com) (1 replies)
RE: ssh hangs after SSH2_MSG_SERVICE_ACCEPT Jul 29 2010 04:04PM
Rodriguez, Tony (Tony Rodriguez ucsfmedctr org) (1 replies)
Re: ssh hangs after SSH2_MSG_SERVICE_ACCEPT Aug 01 2010 09:31AM
Kosala Atapattu (kosala atapattu gmail com)
Hi,

Sorry about the late reply. Finally we figured out the problem to be
with the DNS server. The DNS server could not resolve the hostname of
the server, and it takes about 1 minute to revert to the /etc/hosts
file. The solution we found was to specify the name resolution order
to be first local and then bind, to prevent any further problems.

Thanx for the reply.
Cheers,
Kosala

On Thu, Jul 29, 2010 at 7:04 PM, Rodriguez, Tony
<Tony.Rodriguez (at) ucsfmedctr (dot) org [email concealed]> wrote:
> Is this only occurring during debug sessions?
>
> -T
>
> -----Original Message-----
> From: listbounce (at) securityfocus (dot) com [email concealed] [mailto:listbounce (at) securityfocus (dot) com [email concealed]] On Behalf Of Kosala Atapattu
> Sent: Saturday, July 24, 2010 11:57 PM
> To: secureshell (at) securityfocus (dot) com [email concealed]
> Subject: ssh hangs after SSH2_MSG_SERVICE_ACCEPT
>
> Hi All,
>
> My servers suddenly started giving problem across all the machines.
> When I try to connect, the ssh debug output stops near the
> SSH2_MSG_SERVICE_ACCEPT and then continues after a minute or so.
>
> root@s2spr1[/home/root] #ssh -v t1was1_nim
> OpenSSH_5.2p1, OpenSSL 0.9.8k 25 Mar 2009
> debug1: Reading configuration data /etc/ssh/ssh_config
> debug1: Failed dlopen: /usr/krb5/lib/libkrb5.a(libkrb5.a.so):
> 0509-022 Cannot load module /usr/krb5/lib/libkrb5.a(libkrb5.a.so).
>        0509-026 System error: A file or directory in the path name
> does not exist.
>
> debug1: Error loading Kerberos, disabling Kerberos auth.
> debug1: Connecting to t1was1_nim [10.1.1.114] port 22.
> debug1: Connection established.
> debug1: permanently_set_uid: 0/0
> debug1: identity file /home/root/.ssh/identity type -1
> debug1: identity file /home/root/.ssh/id_rsa type -1
> debug1: identity file /home/root/.ssh/id_dsa type 2
> debug1: Remote protocol version 2.0, remote software version OpenSSH_5.2
> debug1: match: OpenSSH_5.2 pat OpenSSH*
> debug1: Enabling compatibility mode for protocol 2.0
> debug1: Local version string SSH-2.0-OpenSSH_5.2
> debug1: SSH2_MSG_KEXINIT sent
> debug1: SSH2_MSG_KEXINIT received
> debug1: kex: server->client aes128-ctr hmac-md5 none
> debug1: kex: client->server aes128-ctr hmac-md5 none
> debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) 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 't1was1_nim' is known and matches the RSA host key.
> debug1: Found key in /home/root/.ssh/known_hosts:79
> 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
>
> I have not changed anything in these machines. This is just a sudden
> move. These servers are on AIX.
>
> --
> Kosala
> --------------------------------------------
> Disclaimer: Views expressed in this mail are my personal views and
> they would not reflect views of the employer.
> --------------------------------------------
> blog.kosala.net
> www.linux.lk/~kosala/
> www.kosala.net
>
>

--
Kosala
--------------------------------------------
Disclaimer: Views expressed in this mail are my personal views and
they would not reflect views of the employer.
--------------------------------------------
blog.kosala.net
www.linux.lk/~kosala/
www.kosala.net

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