Linux Administration Fundamentals Training in Dublin, Ireland

This course provides a foundational understanding of Linux system administration. It is designed to equip participants with essential skills in managing users, processes, software packages, file systems, and networking on Linux-based systems. Through hands-on exercises and real-world scenarios, learners will gain confidence in performing administrative tasks using both the command line and system tools.

Course Agenda

Introduction to Linux Administration

• Role of a Linux system administrator

• Linux distributions overview (Red Hat, Ubuntu, CentOS, etc.)

• Navigating the Linux file system

User and Group Management

• Creating, modifying, and deleting users and groups

• Password policies and login controls

• File permissions, ownership, and access control

Software Management

• Package management using YUM, DNF, and APT

• Installing, updating, and removing software

• Repositories and dependency handling

Process and Service Management

• Understanding system processes and jobs

• Starting, stopping, and enabling services with systemctl

• Monitoring tools: top, htop, ps, kill

Disk and File System Management

• Mounting and unmounting file systems

• Partitioning disks with fdisk, parted

• File system types and creation with mkfs

• Logical Volume Management (LVM) basics

Networking Fundamentals

• Configuring IP addresses and hostname

• Tools: ip, nmcli, ping, netstat, ss, nmtui

• Network services and troubleshooting

System Monitoring and Logging

• Log management with journalctl, /var/log

• Resource monitoring: CPU, memory, disk I/O

• Using df, du, free, iotop

Task Automation

• Scheduled tasks with cron, crontab, and at

• Writing simple shell scripts for automation

• Permissions and execution policies

Security and Firewalls

• Basic security principles

• Configuring firewalls with firewalld or ufw

• User authentication and SSH hardening

Hands-on Exercises