server_hardening

Some good practices to improve security on RHEL-based servers, automated.

Tested on :

CentOS 7
CloudLinux 7
AlmaLinux 8
CloudLinux 8
AlmaLinux 9 
CloudLinux 9 

Usage:

1. Run the script:

bash server_hardening.sh

2. Have your IP address, public key, and admin user's name at hand (Optional)

Features:

The script will execute 3 main functions:

• ssh_hardening - Good practices to secure our SSH config
• fw_hardening - Block all ports except the ones specified
• user_pass_policy - Settings about user's password complexity, attempts, change frequency, etc.