Linux Foundation Certified System Administrator (LFCS)

The LFCS is a performance-based certification from the Linux Foundation that validates the ability to perform Linux system administration tasks including storage management, security, networking, and service configuration. Unlike multiple-choice exams, the LFCS uses a hands-on terminal-based format where candidates solve real problems in a live Linux environment — making it one of the most practical and respected Linux certifications available.

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What is the Linux Foundation Certified System Administrator (LFCS)?

Who Should Take This Course?

Linux System Administrators managing servers and infrastructure
DevOps Engineers working with Linux-based CI/CD pipelines
Cloud Engineers managing Linux workloads on AWS, Azure, or GCP
IT professionals transitioning from Windows to Linux environments
Support Engineers handling Linux server issues
Students and bootcamp graduates pursuing Linux careers
Anyone who works daily with Linux command line environments

What You Will Learn in the LFCS Course

A comprehensive curriculum covering all exam objectives with hands-on labs and real-world practice.

Essential Commands and File System Management

Master the Linux command line and file system operations.

Linux shell fundamentals and Bash scripting basics
File system hierarchy and navigation (ls, cd, find, locate)
File permissions, ownership, and ACLs
Archiving and compression: tar, gzip, bzip2, xz

User and Group Management

Administer users, groups, and access controls.

Creating and managing users and groups (useradd, usermod, groupmod)
Password policies and account expiry
Sudo and privilege escalation
PAM (Pluggable Authentication Modules) configuration

Storage and File Systems

Manage disk partitions, logical volumes, and file systems.

Disk partitioning with fdisk, gdisk, and parted
Logical Volume Manager (LVM): create, extend, and manage
File system creation and mounting (ext4, xfs, btrfs)
NFS and Samba network file sharing configuration

Networking and Services

Configure network interfaces and manage Linux services.

Network interface configuration and ip/ss commands
DNS, DHCP, and hostname configuration
Managing services with systemd (systemctl, journalctl)
SSH configuration, key-based authentication, and tunnelling

Security and System Maintenance

Harden Linux systems and maintain performance.

Firewall management with firewalld and iptables
SELinux and AppArmor security contexts
Package management: apt, yum, dnf, rpm, snap
Scheduling tasks with cron and at; system logging

Course Prerequisites

Pre-requisites training is free when you purchase the course from ProSupport

1–2 years of hands-on Linux administration experience
Comfortable using Linux command line for daily tasks
Basic understanding of networking and TCP/IP
Familiarity with at least one Linux distribution (Ubuntu, RHEL, CentOS, Debian)

Exam Information

Everything you need to know about the LFCS certification exam.

Exam Component	Details
Exam Name	Linux Foundation Certified System Administrator
Exam Code	LFCS
Exam Type	Performance-based (hands-on terminal)
Total Questions	Scenario-based tasks
Passing Score	66%
Exam Duration	120 minutes
Language	English
Exam Provider	Linux Foundation / PSI Secure Browser
Exam Focus	File management, user administration, storage, networking, services, and system security
Exam Registration	Purchase exam voucher at training.linuxfoundation.org; remote proctored exam
Retake Policy	One free retake included with exam purchase within 12-month eligibility period
Certification Validity	3 years (renewal exam required)