Linux Foundation Certified System Administrator (LFCS)

Unlock great career opportunities by proving your Linux expertise — the OS powering 90% of the public cloud. Become the go-to professional every employer wants on their team!

The LFCS certification delivers career advancement, industry-wide credential recognition, proof of your high-demand cloud skills, and networking opportunities.

Can you provide more details about the LFCS certification?

How can I obtain the LFCS certification?

Are there any prerequisites for taking the LFCS exam?

Operations Deployment - 25%

Configure kernel parameters, persistent and non-persistent

Diagnose, identify, manage, and troubleshoot processes and services

Manage or schedule jobs for executing commands

Search for, install, validate, and maintain software packages or repositories

Recover from hardware, operating system, or filesystem failures

Manage Virtual Machines (libvirt)

Configure container engines, create and manage containers

Create and enforce MAC using SELinux

Networking - 25%

Configure IPv4 and IPv6 networking and hostname resolution

Set and synchronize system time using time servers

Monitor and troubleshoot networking

Configure the OpenSSH server and client

Configure packet filtering, port redirection, and NAT

Configure static routing

Configure bridge and bonding devices

Implement reverse proxies and load balancers

Storage - 20%

Configure and manage LVM storage

Manage and configure the virtual file system

Create, manage, and troubleshoot filesystems

Use remote filesystems and network block devices

Configure and manage swap space

Configure filesystem automounters

Monitor storage performance

Essential Commands - 20%

Basic Git Operations

Create, configure, and troubleshoot services

Monitor and troubleshoot system performance and services

Determine application and service specific constraints

Troubleshoot diskspace issues

Work with SSL certificates

Users and Groups - 10%

Create and manage local user and group accounts

Manage personal and system-wide environment profiles

Configure user resource limits

Configure and manage ACLs

Configure the system to use LDAP user and group accounts

This exam is an online, proctored, performance-based test that requires solving multiple issues from a command line running Linux. Candidates have 2 hours to complete the tasks. Please review The Linux Foundation certification Policies and FAQ below.

Frequently Asked Questions: https://training.linuxfoundation.org/about/faqs/certification-faq/

Linux Foundation Certification Exams: Candidate Handbook: https://docs.linuxfoundation.org/tc-docs/certification/lf-handbook2

LFCS Important Instructions: https://docs.linuxfoundation.org/tc-docs/certification/instructions-lfcs-and-lfce

Linux Foundation Certification Policies: https://training.linuxfoundation.org/about/policies/