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LFCS - Linux Foundation Certified SysAdmin

LFCS

The Linux Foundation Certified SysAdmin (LFCS) exam demonstrates a candidate's proficiency in Linux system administration.

Exam Overview

Detail Information
Exam Format Performance-based (hands-on)
Duration 2 hours
Passing Score 66%
Certification Validity 3 years
Cost $395 USD
Retake Policy 1 free retake
Distribution Ubuntu 22.04 or AlmaLinux 9

Exam Domains & Weights

Domain Weight
Essential Commands 25%
Operation of Running Systems 20%
User and Group Management 10%
Networking 12%
Service Configuration 20%
Storage Management 13%

Prerequisites

  • Basic understanding of Linux command line
  • Familiarity with text editors (vim, nano)
  • Understanding of file systems and permissions
  • Basic networking knowledge

Study Resources

Official Resources

Practice Resources

Exam Tips

  1. Practice on Ubuntu/AlmaLinux: Use the same distribution as the exam
  2. Master vim/nano: You'll need to edit files quickly
  3. Know systemd: Service management is crucial
  4. Understand permissions: File and directory permissions
  5. Practice networking: IP configuration, firewall rules
  6. Learn LVM: Logical Volume Management is important

Key Topics to Master

Essential Commands

  • File manipulation (cp, mv, rm, find, grep)
  • Text processing (sed, awk, cut, sort)
  • Archive and compression (tar, gzip, bzip2)
  • File permissions and ownership

System Operations

  • Boot process and systemd
  • Process management
  • System logging
  • Scheduling tasks (cron, at)

Networking

  • Network configuration
  • Firewall management (firewalld, iptables)
  • SSH configuration
  • DNS and hostname resolution

Storage

  • Partition management
  • LVM operations
  • File system creation and mounting
  • RAID configuration