Comment 3 for bug 96472

I just noticed the problem as well. There is about 5 seconds delay when ssh to a local server. After changing "GSSAPIAuthentication yes" to "GSSAPIAuthentication no" in /etc/ssh/ssh_config, ssh login is almost instantaneous.

wenzhuo@thinkpad:~$ ssh -v panda
OpenSSH_4.3p2 Debian-8ubuntu1, OpenSSL 0.9.8c 05 Sep 2006
debug1: Reading configuration data /home/wenzhuo/.ssh/config
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug1: Connecting to panda [172.16.10.1] port 22.
debug1: Connection established.
debug1: identity file /home/wenzhuo/.ssh/identity type -1
debug1: identity file /home/wenzhuo/.ssh/id_rsa type -1
debug1: identity file /home/wenzhuo/.ssh/id_dsa type 2
debug1: Remote protocol version 2.0, remote software version OpenSSH_4.2p1 Debian-7ubuntu3.1
debug1: match: OpenSSH_4.2p1 Debian-7ubuntu3.1 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_4.3p2 Debian-8ubuntu1
debug1: An invalid name was supplied
Configuration file does not specify default realm

debug1: An invalid name was supplied
A parameter was malformed
Validation error

debug1: An invalid name was supplied
Configuration file does not specify default realm

debug1: An invalid name was supplied
A parameter was malformed
Validation error

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 'panda' is known and matches the RSA host key.
debug1: Found key in /home/wenzhuo/.ssh/known_hosts:104
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
debug1: Next authentication method: publickey
debug1: Offering public key: /home/wenzhuo/.ssh/id_dsa
debug1: Server accepts key: pkalg ssh-dss blen 433
debug1: Authentication succeeded (publickey).
debug1: channel 0: new [client-session]
debug1: Entering interactive session.
debug1: Sending environment.
debug1: Sending env LANG = en_US.UTF-8
Linux panda 2.6.15-28-686 #1 SMP PREEMPT Thu Feb 1 16:14:07 UTC 2007 i686 GNU/Linux

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Last login: Mon Apr 2 13:30:48 2007 from 172.16.10.32