port change

Learn how to change Apache's default port from 80 to 8080 on Linux, enhancing flexibility for handling multiple websites, firewall configurations, and restrictive network policies. This guide details Apache installation, configuration adjustments, firewall rule modifications, and testing the new setup to ensure effective management of network traffic and security.

Secure SSH access is vital for protecting server infrastructure. This guide outlines steps to enhance SSH security, including adopting key-based authentication, disabling password logins and root access, changing the default port, and using firewalls with "AllowUsers" to control access. Implementing two-factor authentication, regular updates, and tools like Fail2Ban further secure SSH environments against unauthorized access.