I can't SSH localhost. I have installed OpenSSH server as well on my Ubuntu 12.04 LTS (32 bit).

connected to net (ip : 192.168.1.2)
installed hadoop, running hadoop for local machine.

Here's what I get :

root@kunal-Extensa-4620:/# ssh -vvv localhost

OpenSSH_5.9p1 Debian-5ubuntu1.1, OpenSSL 1.0.1 14 Mar 2012

debug1: Reading configuration data /etc/ssh/ssh_config

debug1: /etc/ssh/ssh_config line 19: Applying options for *

debug2: ssh_connect: needpriv 0

debug1: Connecting to localhost [127.0.0.1] port 22.

debug1: Connection established.

debug1: permanently_set_uid: 0/0

debug1: identity file /root/.ssh/id_rsa type -1

debug1: identity file /root/.ssh/id_rsa-cert type -1

debug1: identity file /root/.ssh/id_dsa type -1

debug1: identity file /root/.ssh/id_dsa-cert type -1

debug1: identity file /root/.ssh/id_ecdsa type -1

debug1: identity file /root/.ssh/id_ecdsa-cert type -1

debug1: Remote protocol version 2.0, remote software version OpenSSH_5.9p1 Debian-5ubuntu1.1

debug1: match: OpenSSH_5.9p1 Debian-5ubuntu1.1 pat OpenSSH*

debug1: Enabling compatibility mode for protocol 2.0

debug1: Local version string SSH-2.0-OpenSSH_5.9p1 Debian-5ubuntu1.1

debug2: fd 3 setting O_NONBLOCK

debug3: load_hostkeys: loading entries for host "localhost" from file "/root/.ssh/known_hosts"

debug3: load_hostkeys: loaded 0 keys

debug1: SSH2_MSG_KEXINIT sent

Read from socket failed: Connection reset by peer