I have a ubuntu server running, just a small project. My auth.log file is 22mb big and it is full of stuff like:
Failed password for invalid user milka from **** port **** ssh2
Received disconnect from **** port ****: Bye Bye [preauth]
Disconnected from invalid user milka **** port **** [preauth]
Invalid user root1 from **** port *****
pam_unix(sshd:auth): check pass; user unknown
pam_unix(sshd:auth): authentication failure; *****
The ***** mean that in the log file is stuff I'm not sure if I can post it without security risks.
What does the logs mean?? Do someone try to hack me???
Please help :(
EDIT: the entrys started 3 days ago and the attack run constantly since that
