Topic: Howto: Change Default SSH Port For Prevent Brute Force Attacks

Apr 28 00:03:10 host sshd[64644]: Invalid user postgres from 77.221.156.210
Apr 28 00:19:03 host sshd[6082]: Invalid user info from 77.221.156.210
Apr 28 00:31:00 host sshd[32286]: Invalid user info1 from 77.221.156.210
Apr 28 00:42:56 host sshd[61803]: Invalid user info from 77.221.156.210
Apr 28 00:54:53 host sshd[92584]: Invalid user media from 77.221.156.210
Apr 28 01:06:48 host sshd[31386]: Invalid user user from 77.221.156.210
Apr 28 01:18:44 host sshd[66535]: Invalid user user2 from 77.221.156.210
Apr 28 01:30:41 host sshd[5128]: Invalid user user3 from 77.221.156.210