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Overview

The Linux Foundation Certified System Administrator (LFCS) certification is ideal for candidates early in their Linux system administration or open source career. The test consists of performance-based items that simulate on-the-job tasks and scenarios faced by sysadmins in the real world. Obtaining certification allows individuals to validate their skills to prospective employers- which is particularly valuable if you have little on-the-job experience.



Domains & Competencies

The Linux Foundation worked with industry experts and the Linux kernel community to identify the core domains and the critical skills- knowledge and competencies applicable to each certification. Performance-based exams were then developed based on the competencies that were identified.



- Essential Commands – 25%

- Operation of Running Systems – 20%

- User and Group Management – 10%

- Networking – 12%

- Service Configuration – 20%

- Storage Management – 13%



Essential Commands – 25%

- Log into local & remote graphical and text mode consoles

- Search for files

- Evaluate and compare the basic file system features and options

- Compare and manipulate file content

- 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 and manage 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 or change system into different operating modes

- Install- configure and troubleshoot bootloaders

- Diagnose and manage processes

- 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 (In Services Configuration)

- List and identify SELinux/AppArmor file and process contexts

- Manage Software

- Identify the component of a Linux distribution that a file belongs to



User and Group Management – 10%

- 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 privileges

- Configure PAM



Networking – 12%

- Configure networking and hostname resolution statically or dynamically

- Configure network services to start automatically at boot

- Implement packet filtering

- Start- stop- and check the status of network services

- Statically route IP traffic

- Synchronize time using other network peers



Service Configuration – 20%

- Configure a caching DNS server

- Maintain a DNS zone

- Configure email aliases

- Configure SSH servers and clients

- Restrict access to the HTTP proxy server

- Configure an IMAP and IMAPS service

- Query and modify the behavior of system services at various operating modes

- Configure an HTTP server

- Configure HTTP server log files

- Configure a database server

- Restrict access to a web page

- Manage and configure containers

- Manage and configure Virtual Machines



Storage Management – 13%

- List- create- delete- and modify physical storage partitions

- Manage and configure LVM storage

- Create and configure encrypted storage

- Configure systems to mount file systems at or during boot

- Configure and manage swap space

- Create and manage RAID devices

- Configure systems to mount file systems on demand

- Create- manage and diagnose advanced file system permissions

- Setup user and group disk quotas for filesystems

- Create and configure file systems