Hi,
On CentOS 5.4 x86_64 (and maybe elsewhere), trying to ssh on a node will
trigger the following error if -v option is used.
=> Unspecified GSS failure.
It seems that kerberos is involved here (missing).
A solution is to update the /etc/ssh/sshd_config on clients and replace
GSSAPIAuthentication yes => GSSAPIAuthentication no
(nice to have config cleanup).
[r...@is005760 mpich]# ssh -v r...@oscarnode1
OpenSSH_4.3p2, OpenSSL 0.9.8e-fips-rhel5 01 Jul 2008
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug1: Connecting to oscarnode1 [192.168.1.1] port 22.
debug1: Connection established.
debug1: permanently_set_uid: 0/0
debug1: identity file /root/.ssh/identity type 0
debug1: identity file /root/.ssh/id_rsa type 1
debug1: identity file /root/.ssh/id_dsa type 2
debug1: loaded 3 keys
debug1: Remote protocol version 2.0, remote software version OpenSSH_4.3
debug1: match: OpenSSH_4.3 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_4.3
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(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 'oscarnode1' is known and matches the RSA host key.
debug1: Found key in /root/.ssh/known_hosts:3
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,gssapi-with-mic,password
debug1: Next authentication method: gssapi-with-mic
debug1: Unspecified GSS failure. Minor code may provide more information
Unknown code krb5 195
debug1: Unspecified GSS failure. Minor code may provide more information
Unknown code krb5 195
debug1: Unspecified GSS failure. Minor code may provide more information
Unknown code krb5 195
debug1: Next authentication method: publickey
debug1: Offering public key: /root/.ssh/id_rsa
debug1: Server accepts key: pkalg ssh-rsa blen 277
debug1: read PEM private key done: type RSA
debug1: Authentication succeeded (publickey).
debug1: channel 0: new [client-session]
debug1: Entering interactive session.
debug1: Sending environment.
debug1: Sending env LANG = fr_FR.UTF-8
Last login: Thu Aug 6 21:17:24 2009 from head
--
Olivier LAHAYE
CEA Saclay
DRT-LIST-DETECS-SSTM
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