I changed the password of my linux machine . I was able to login for sometime and after that I am not able to ssh.
I am getting the following error:  

    ssh es4042cs -v
    OpenSSH_5.1p1, OpenSSL 0.9.8j-fips 07 Jan 2009
    debug1: Reading configuration data /etc/ssh/ssh_config
    debug1: Applying options for *
    debug1: Connecting to es4042cs [10.66.213.242] 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_dsa type 2
    **ssh_exchange_identification: Connection closed by remote host**