WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! problem resolved

Bhargava .ssh # ssh hostname@199.95.30.220 -p 22 @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY! Someone could be eavesdropping on you right now (man-in-the-middle attack)! It is also possible that a host key has just been changed. The fingerprint for the RSA key sent by the remote host is 06:81:2c:82:a8:fb:c7:85:5f:12:60:77:25:d2:6b:40. Please contact your system administrator. Add correct host key in /root/.ssh/known_hosts to get rid of this message. Offending RSA key in /root/.ssh/known_hosts:1 remove with: ssh-keygen -f "/root/.ssh/known_hosts" -R 199.95.30.220 RSA host key for 192.95.30.152 has changed and you have requested strict checking. Host key verification failed. =========================================================================Finally problem Resolved

Step1:$Bhargava.ssh#  ssh-keygen -R 199.95.30.220 
 step2: $Bhargava.ssh # ssh-copy-id hostname@199.95.30.220

                                            Enter the the password.........
step3: Bhargava .ssh # ssh hostname@199.95.30.220


Welcome to Ubuntu 14.04.3 LTS (GNU/Linux 3.13.0-68-generic x86_64) * Documentation: https://help.ubuntu.com/ Ubuntu 14.04.3 LTS server : 228839 ip : 199.95.30.220 hostname : qt.example.com System information as of Thu Mar 24 02:13:43 EDT 2016 System load: 0.67 Processes: 321 Usage of /home: 5.1% of 497.80GB Users logged in: 0 Memory usage: 53% IP address for eth0: 199.95.30.220 Swap usage: 16% IP address for docker0: 172.17.0.1 Graph this data and manage this system at: https://landscape.canonical.com/ Last login: Wed Mar 23 02:07:29 2016 from 103.200.41.50

hostname@qt:~$

Thanks & Regards,

Bhargava Batchu.