![]() ![]() To be honest, using server as root itself should be forbidden. You must remember or note down the port number otherwise you may also not access your servers with SSH. Search for the port information in the config file and change it to something different: Port 2345 Changing the default SSH port should add an additional security layer because the number of attacks (coming to port 22) may reduce. The default SSH port is 22 and most of the attack scripts check are written around this port only. In the /etc/ssh/sshd_config file, make sure to set PermitEmptyPasswords option to no. You should forbid the use of empty passwords. If those users try to use SSH, they won’t need passwords for accessing the server via SSH as well. It is possible to have user accounts in Linux without any passwords. ![]() Let’s see what steps you can take to secure your SSH server. ![]() You’ll also need to restart the SSH service if you make any changes to the SSH config file. This is why it will be a good idea to back up the original file. Most of the SSH hardening tips mentioned here will require you to edit this config file. If you are aware of SSH basics, you know that the SSH configuration files are located at /etc/ssh/sshd_config. #Linux ssh shell timeout password#Also keep in mind that some tips might not be compatible with others.įor example, if you disable the password based SSH login, there is no need to go for Fail2Ban kind of solution. Read all of them and then see which ones fit your need. Do not go and blindly follow all the SSH hardening tips mentioned here. ![]()
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