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

Only client side problem(duplicate key for ip):

Solve variants:

For clear one ip(default port 22):

ssh-keygen -f -R 7.7.7.7

For one ip(non default port):

ssh-keygen -f -R 7.7.7.7:333

Fast clear all ips:

cd ~; rm .ssh/known_hosts

7.7.7.7 - ssh your server ip connect

333 - non standart port