Linux Administration

Core Linux system administration skills for managing production servers, development environments, and infrastructure hosts across Debian/Ubuntu and RHEL/CentOS distributions.

When to Use

• Provisioning and maintaining Linux servers in any environment
• Installing, updating, or removing software packages
• Managing filesystems, disk usage, and mount points
• Investigating runaway processes or high resource consumption
• Scheduling recurring tasks with cron or systemd timers
• Analyzing system and application logs for troubleshooting

Prerequisites

• Root or sudo access on the target system
• SSH access configured (see ssh-configuration skill)
• Familiarity with a terminal text editor (vim, nano)
• Package manager available (apt on Debian/Ubuntu, dnf on RHEL 8+/Fedora)