It is recommended to change SSH password of your server, to avoid attacks and hacking your server. Yesterday, I’ve been notified by my Hosting company that I was subject of Brute force attacks. More than failed brute force attacks registered on my server after my last successful login.
How to change the password
Simply, login to Centos with Putty (using TightVNC) with your old password, type :
and type the new password, confirm, and that is it!