Prepare for the LFCS

The exam

Performance-based: you complete administration tasks on live Linux machines.

What this path covers

Strong coverage: most steps are hands-on labs on a real Linux machine. Storage and networking tasks are covered as theory for now.

19 hands-on labs and 13 questions

Finish every step to earn a BrokenCluster completion certificate you can add to LinkedIn.

1. 1.Essential commands

   0/7
   • Find Files by Name, Size and Ageeasy
   • Extract Error Lines from a Logeasy
   • Edit a Config File in Place with sedeasy
   • Summarize Sales Data with awkmedium
   • Create a Clean Backup Archiveeasy
   • Restore One File from a Backup Archiveeasy
   • Hard Links and Symbolic Linkseasy

2. 2.Users, groups and permissions

   0/7
   • Create a User Accounteasy
   • Set an Exact File Modeeasy
   • Fix "Permission denied" on Service Dataeasy
   • Shared Team Directory with setgid and stickymedium
   • Grant One Extra User Access with ACLsmedium
   • Grant Exactly One Command via sudomedium
   • Password Aging with chageeasy

3. 3.Operations

   0/8
   • Stop a Process That Ignores SIGTERMeasy
   • Process Priority with niceeasy
   • Schedule a Nightly Cron Jobeasy
   • systemd Timers vs cronmedium
   • enable vs starteasy
   • Filtering the Journaleasy
   • Loading Kernel Moduleseasy
   • Which Package Owns a Fileeasy

4. 4.Networking

   0/5
   • Pin a Hostname with /etc/hostseasy
   • Who Is Listening on That Port?medium
   • Set Up SSH Key Authenticationmedium
   • Persistent Static IP with nmclimedium
   • firewalld Runtime vs Permanenteasy

5. 5.Storage

   0/5
   • Find What Is Filling the Diskeasy
   • Robust fstab Entriesmedium
   • Growing a Logical Volumemedium
   • Activating Swap Spaceeasy
   • autofs Indirect Mapshard

BrokenCluster is independent and is not affiliated with, endorsed by or sponsored by The Linux Foundation. Linux Foundation Certified System Administrator is a trademark of its owner and is named here only to describe what this path helps you prepare for. Passing our path is not the official exam.