LFCS exam blueprint, mapped to lessons

Every competency of the Linux Foundation Certified System Administrator exam, and the interactive lesson that teaches it.

Linux Foundation Certified System Administrator (LFCS)

Prove you can run a Linux machine: files, users, packages, networks and storage, hands-on.

Configure kernel parameters, persistent and non-persistent: Boot, Kernel & Modules
Diagnose, identify, manage, and troubleshoot processes and services: Processes & Signals, systemd & Services
Manage or schedule jobs for executing commands: Scheduling: cron & Timers
Search for, install, validate, and maintain software packages or repositories: Packages & Repositories
Recover from hardware, operating system, or filesystem failures: Logs & Troubleshooting
Manage Virtual Machines (libvirt): Virtualization & Containers
Configure container engines, create and manage containers: Virtualization & Containers, Namespaces & cgroups
Create and enforce MAC using SELinux: SELinux & AppArmor
Use scripting to automate system maintenance tasks: Bash Scripting
Trace system calls to diagnose application behavior: Syscalls, Capabilities & seccomp

Configure IPv4 and IPv6 networking and hostname resolution: Host Networking
Set and synchronize system time using time servers: Time & Certificates
Monitor and troubleshoot networking: Host Networking
Configure the OpenSSH server and client: SSH & Keys
Configure packet filtering, port redirection, and NAT: Packet Filtering & Proxies
Configure static routing: Host Networking
Configure bridge and bonding devices: Host Networking
Implement reverse proxies and load balancers: Packet Filtering & Proxies

Create, delete, copy and move files and directories; manage hard and soft links: Files & the Filesystem
Read and change file permissions and ownership: Permissions & Ownership
Use input-output redirection and pipes: The Shell, Pipes & Redirection
Archive, back up, compress, unpack and uncompress files: Archives & Compression
Basic Git Operations: Git Essentials
Create, configure, and troubleshoot services: systemd & Services
Monitor and troubleshoot system performance and services: Performance: CPU, Memory & I/O
Determine application and service specific constraints: Performance: CPU, Memory & I/O
Troubleshoot diskspace issues: Logs & Troubleshooting
Work with SSL certificates: Time & Certificates
Analyze text using basic regular expressions: Text Tools: grep, sed, awk