Restrict SSH access to only user accounts that should have it. For example, you may create a group called »sshlogin« and add the group name as the value associated with the AllowGroups variable located in the file /etc/ssh/sshd_config.
AllowGroups sshlogin
Then add your permitted SSH users to the group »sshlogin«, and restart the SSH service.
sudo adduser username sshlogin
sudo /etc/init.d/ssh restart
- Ah, tack för detta trevliga tips!