arun@arun-laptop:~$ ssh -v arun@usr.sugarlabs.org
OpenSSH_5.1p1 Debian-6ubuntu2, OpenSSL 0.9.8g 19 Oct 2007
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug1: Connecting to usr.sugarlabs.org [140.186.70.107] port 22.
debug1: Connection established.
debug1: identity file /home/arun/.ssh/identity type -1
debug1: identity file /home/arun/.ssh/id_rsa type -1
debug1: identity file /home/arun/.ssh/id_dsa type -1
debug1: Remote protocol version 2.0, remote software version OpenSSH_5.5p1 Debian-4ubuntu4
debug1: match: OpenSSH_5.5p1 Debian-4ubuntu4 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_5.1p1 Debian-6ubuntu2
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 'usr.sugarlabs.org' is known and matches the RSA host key.
debug1: Found key in /home/arun/.ssh/known_hosts:1
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
debug1: Next authentication method: publickey
debug1: Offering public key: arun@arun-laptop
debug1: Authentications that can continue: publickey
debug1: Trying private key: /home/arun/.ssh/identity
debug1: Trying private key: /home/arun/.ssh/id_rsa
debug1: Trying private key: /home/arun/.ssh/id_dsa
debug1: No more authentication methods to try.
Permission denied (publickey).
arun@arun-laptop:~$