HeavT Lv2Posted 06 Mar 2023 16:04
  
1. Use SSH public key based login. OpenSSH server supports various authentication.
2. Disable root user login.
3. Disable password based login.
4. Limit Users' ssh access.
5. Disable Empty Passwords.
6. Use strong passwords and passphrase for ssh users/keys.
7. Firewall SSH TCP port # 22.
8. Change SSH Port and limit IP binding.

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