ssh remote host identification has changed

Question

I\'ve reinstalled my server and I am getting these messages:

[user@hostname ~]$ ssh root@pong
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@           


        

Answer 1

Simply clear the known_hosts which is present in /home/{username}/.ssh/known_hosts

vi /home/{username}/.ssh/known_hosts 

remove every line inside known hosts and exit after that you will be able to login.

OR

run this command

ssh-keygen -R "hostname/ip_address"