Recent Posts

Learn how to check private and public IP addresses on Linux, identify the active interface and route, and distinguish IPv4, IPv6, and externally visible addresses.

Install MariaDB on Rocky Linux, enable the database service, complete the initial security setup, create a database and account, and verify access.

Install a graphical desktop on Rocky Linux, select the graphical boot target, configure remote access, and review firewall and security considerations.

Use DNF and RPM to list, search, count, and inspect installed packages on Rocky Linux and identify which package owns a file.

Learn how to use the Linux screen command to keep terminal sessions running and reconnect to them later, with essential options, practical examples, output interpretation, and common troubleshooting tips.

Understand how Bash operators run commands sequentially, conditionally, in the background, or through pipelines, with practical examples and precedence guidance.

Configure and verify a static IPv4 address on Rocky Linux with NetworkManager, including the gateway, DNS servers, connection profile, and safe remote-change checks.

Check and change SELinux enforcing, permissive, and disabled modes on Rocky Linux, understand temporary and persistent changes, and troubleshoot denials safely.

Use DNF on Rocky Linux to search, install, remove, update, and inspect packages and repositories while keeping package-management changes controlled.

Review how root SSH login is controlled on Rocky Linux, why direct root access is risky, and how to change and verify sshd settings without losing remote access.