• TIP: If adding code to the file, put it near the Authentication section of the file for easy navigation later

Securing SSH for Root User

• vi /etc/ssh/sshd_config - opens the sshd config file using VIM allowing you to edit it
• Scroll until you find Authentications, then find PermitRootLogin
• edit the file so PermitRootLogin is set to "no"
• save the file
• Restart SSH
• • systemctl restart sshd

Securing SSH for other Users

Securing Groups

• vi /etc/ssh/sshd_config - opens the sshd config file using VIM allowing you to edit it
• Edit the file and add "DenyGroups [group name]" to the file
• save the file and restart SSH

Securing Users

• vi /etc/ssh/sshd_config - opens the sshd config file using VIM allowing you to edit it
• Edit the file and add "DenyUsers [user's name]" to the file
• save the file and restart SSH