Exam Fee: $300
Exam may be scheduled anytime within 12 months of purchase
LFCS Exam + LFS201 (Essentials of Linux System Administration) - $499
Register for LFS201 & LFCS
- A self-paced 100% online course
- Full 12 months to complete the course
- Gives you the foundational principles you need to
take the LFCS exam
- A self-paced 100% online course
- Full 12 months to complete the course
- Gives you the foundational principles you need to take the LFCS exam
Need a more intense preparation option? Check out LFS301 - Linux System Administration.
Why Choose Linux Foundation Certifications
There are many reasons to choose Linux Foundation Certifications. Here are just a few:
- The Linux Foundation is the non-profit organization that hosts the Linux project, employs Linux creator Linus Torvalds and hosts kernel.org (where all Linux kernel updates are released). So when you get our certifications, you’re getting certified from the source.
- Because we’re so close to the Linux community, we are able to update our certifications regularly using feedback from the community to make sure our exams are using the most up-to-date information.
- The Linux Foundation has the only performance-based certifications on the market today that are available in all the major Linux distributions: CentOS, Ubuntu and SUSE.
- We don't sell any software or support services so we’re completely distribution-neutral. Our only goal is to help you advance your Linux career.
Candidates must pass the required Exam to earn Certification. Review the following sections under Exam Details for more information.
Need some free extra help? Download our Free Certification Preparation Guide.
Candidates must ensure they meet the System, ID, and Other Requirements for Taking the Exam.
The following choices of Linux distributions are offered for the Exam. Candidates will be prompted to select from one of these choices when registering for the Exam.
- CentOS 7
- openSUSE 42
- Ubuntu 16
System, ID, and Other Requirements
Candidates are required to provide their own front-end hardware (laptop or workstation) with Chrome or Chromium browser, reliable internet access, and a webcam and microphone in order to take exams. Candidates do not need to provide their own Linux installation or VM; they will be presented with a VM in their browser window using a terminal emulator. Candidates should use the compatibility check tool to verify that their system and testing environment meet the minimum requirements.
ID Requirements for Candidate Identification and Authentication
Candidates are required to provide a means of photo identification before the Exam can be launched. Acceptable forms of photo ID include current, non-expired: passport, government-issued driver's license/permit, national ID card, state or province-issued ID card, or other form of government issued identification. If acceptable proof of identification is not provided to the exam proctor prior to the exam, entry to the exam will be refused. Candidates who are refused entry due to lack of sufficient ID will not be eligible for a refund or rescheduling.
Candidates should also be sure to review Policy and Terms for Certification and Exams.
Overview of Domains and Competencies
The Linux Foundation worked with industry experts and the Linux kernel community to identify the core domains and the critical skills, knowledge and abilities ("competencies") applicable to each certification. Performance-based exams were then developed based on the competencies that were identified.
IMPORTANT NOTICE REGARDING UPCOMING CHANGES *On March 20, 2018, the Domains and Competencies for the LFCS Exam will be updated as described here.
Below follows a subset of the full list of Domains and Competencies covered by the LFCS Exam currently (see notice above about upcoming changes). This subset represents topics most likely to appear given the delivery technology, performance-based questions and time constraints of the exam. Download a pdf copy of the full list of Domains and Competencies here.
Essential Commands - 25%
- Log into graphical and text mode consoles
- Search for files
- Evaluate and compare the basic file system features and options
- Compare, create and edit text files
- Compare binary files
- Use input-output redirection (e.g. >, >>, |, 2>)
- Analyze text using basic regular expressions
- Archive, backup, compress, unpack, and uncompress files
- Create, delete, copy, and move files and directories
- Create hard and soft links
- List, set, and change standard file permissions
- Read, and use system documentation
- Manage access to the root account
Operation of Running Systems - 20%
- Boot, reboot, and shut down a system safely
- Boot systems into different runlevels manually
- Install, configure and troubleshoot the bootloader
- Change the priority of a process
- Identify resource utilization by process
- Locate and analyze system log files
- Schedule tasks to run at a set date and time
- Verify completion of scheduled jobs
- Update software to provide required functionality and security
- Verify the integrity and availability of resources
- Verify the integrity and availability of key processes
- Change kernel runtime parameters, persistent and non-persistent
- Use scripting to automate system maintenance tasks
- Manage the startup process and services
- List and identify SELinux/AppArmor file and process contexts
- Configure and modify SELinux/AppArmor policies
- Install software from source
User and Group Management - 15%
- Create, delete, and modify local user accounts
- Create, delete, and modify local groups and group memberships
- Manage system-wide environment profiles
- Manage template user environment
- Configure user resource limits
- Manage user processes
- Configure PAM
Networking - 15%
- Configure networking and hostname resolution statically or dynamically
- Configure network services to start automatically at boot
- Implement packet filtering
- Configure firewall settings
- Start, stop, and check the status of network services
- Statically route IP traffic
- Dynamically route IP traffic
- Synchronize time using other network peers
Service Configuration - 10%
- Configure a basic DNS server
- Maintain a DNS zone
- Configure an FTP server
- Configure anonymous-only download on FTP servers
- Provide/configure network shares via NFS
- Provide/configure network shares via CIFS
- Configure email aliases
- Configure SSH servers and clients
- Configure SSH-based remote access using public/private key pairs
- Restrict access to the HTTP proxy server
- Configure an IMAP and IMAPS service
- Query and modify the behavior of system services at various run levels
- Configure an HTTP server
- Configure HTTP server log files
- Restrict access to a web page
- Diagnose routine SELinux/AppArmor policy violations
- Configure database server
Virtualization - 5%
- Configure a hypervisor to host virtual guests
- Access a VM console
- Configure systems to launch virtual machines at boot
- Evaluate memory usage of virtual machines
- Resize RAM or storage of VMs
Storage Management - 10%
- List, create, delete, and modify storage partitions
- Create, modify and delete Logical Volumes
- Extend existing Logical Volumes and filesystems
- Create and configure encrypted partitions
- Configure systems to mount file systems at or during boot
- Configure and manage swap space
- Add new partitions, and logical volumes
- Assemble partitions as RAID devices
- Configure systems to mount standard, encrypted, and network file systems on demand
- Create and manage filesystem Access Control Lists (ACLs)
- Diagnose and correct file permission problems
- Setup user and group disk quotas for filesystems
Scoring and Notification
A score of at least 74% must be earned to pass the Exam.
Upon completion, exams are scored automatically and a score report will be made available within three (3) business days. If a passing score is achieved and other applicable requirements for Certification have been fulfilled, a notification indicating the Candidate has been successfully Certified will follow the score report.
Duration of Exam
English (See FAQ for Spanish and Portuguese options)
Policy and Terms for Certification and Exams
Candidates who sit for Linux Foundation Certification Exams must agree they have read and will abide by the terms and conditions of The Linux Foundation Certification and Confidentiality Agreement before beginning the certification exam. The Agreement applies to all exams. Signing and adhering to this Agreement is required to be officially certified and to maintain valid Certification.
Refunds, Cancellations, Rescheduling
Optional Training and Resources
Free ResourcesLinux Foundation Certification Candidate Handbook
All Candidates should review and familiarize themselves with the Candidate Handbook prior to taking an Exam.Certification Preparation Guide
Need some extra help? Download the Certification Prep Guide.
|LFS201||1 year access|
How to Renew Certifications
Linux Foundation Certifications are valid for 2 years and Candidates may keep Certification valid by completing one of the renewal requirement options below. Renewal requirements must be completed prior to the expiration of the Certification.Options to meet Certification renewal requirements:
- Retake the exam. Candidates have the option to retake and pass the same exam to keep their Certification valid. The Certification will become valid for 2 years starting on the date the exam is retaken and passed.
- Achieve (or renew) a higher-level Certification. On the date that a Candidate with an active LFCS Certification achieves LFCE Certification, the expiration of their LFCS Certification will be extended for 2 years so that both their LFCE and LFCS Certifications expire on the same date. The date on which their LFCS Certification expiration is extended (i.e. renewed) becomes the Renewal Date. (For example, a Certificant holds an active LFCS Certification expiring on August 20, 2016. The Certificant then achieves LFCE Certification on March 1, 2016. Their lower-level LFCS Certification will be extended for 2 years effective March 1, 2016 and both their newly achieved LFCE and renewed LFCS Certifications will have the same expiration date of March 1, 2018. March 1, 2016 becomes the Renewal Date for their LFCS Certification.)