funga@funga:~$ sudo tail -f /var/log/auth.log
[sudo] password for funga: 
Apr  2 10:39:01 funga CRON[32483]: pam_env(cron:session): Unable to open env file: /etc/default/locale: No such file or directory
Apr  2 10:39:01 funga CRON[32483]: pam_unix(cron:session): session opened for user root by (uid=0)
Apr  2 10:39:01 funga CRON[32483]: pam_unix(cron:session): session closed for user root
Apr  2 10:54:09 funga sshd[32526]: reverse mapping checking getaddrinfo for fixed-189-148-197.iusacell.net [187.189.148.197] failed - POSSIBLE BREAK-IN ATTEMPT!
Apr  2 10:54:13 funga sshd[32526]: Failed password for root from 187.189.148.197 port 5963 ssh2
Apr  2 10:54:17 funga sshd[32526]: Connection closed by 187.189.148.197 [preauth]
Apr  2 10:54:28 funga sshd[32528]: reverse mapping checking getaddrinfo for fixed-189-148-197.iusacell.net [187.189.148.197] failed - POSSIBLE BREAK-IN ATTEMPT!
Apr  2 10:54:30 funga sshd[32528]: Accepted publickey for funga from 187.189.148.197 port 8122 ssh2: RSA 22:e6:b0:5d:20:9c:dd:f4:34:3f:55:71:3d:7c:41:a3
Apr  2 10:55:14 funga sudo:    funga : TTY=pts/0 ; PWD=/home/funga ; USER=root ; COMMAND=/usr/bin/tail -f /var/log/auth.log
Apr  2 10:55:14 funga sudo: pam_unix(sudo:session): session opened for user root by funga(uid=0)
Apr  2 10:55:25 funga sshd[32546]: reverse mapping checking getaddrinfo for fixed-189-148-197.iusacell.net [187.189.148.197] failed - POSSIBLE BREAK-IN ATTEMPT!
Apr  2 10:55:31 funga sshd[32546]: ROOT LOGIN REFUSED FROM 187.189.148.197
Apr  2 10:55:31 funga sshd[32546]: ROOT LOGIN REFUSED FROM 187.189.148.197 [preauth]
Apr  2 10:55:44 funga sshd[32546]: Failed password for root from 187.189.148.197 port 8341 ssh2