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Free study guides for Linux certifications, plus interactive courses on courses.graphwiz.ai.
Access interactive lessons, practice exams, and hands-on labs on courses.graphwiz.ai. Track your progress and earn certificates.
Go to courses.graphwiz.aiLinux System Administrator
Entry-level certification covering Linux installation, command line, filesystems, and basic system administration.
Advanced Linux Administrator
Advanced certification covering kernel management, networking, file sharing, and system security.
Linux Enterprise Professional
Expert-level certification with specializations in mixed environments, security, high availability, and virtualization.
701-100 Exam
Modern DevOps toolchain certification covering containers, CI/CD, IaC, monitoring, and security.
Detailed, objective-by-objective study guides for each LPI exam — with commands, examples, and configuration snippets.
System architecture, installation, package management, GNU commands, devices and filesystems, FHS.
Read guide →Shell scripting, SQL, user management, desktop environments, system services, networking, security.
Read guide →Capacity planning, kernel management, system startup, filesystems, LVM, RAID, advanced networking.
Read guide →DNS and BIND, DHCP, web services, file sharing (Samba, NFS), email, LDAP, PAM, security, troubleshooting.
Read guide →Samba, OpenLDAP, Kerberos, Winbind, NFSv4, PAM integration, identity management, cross-platform authentication.
Read guide →Cryptography, PKI, OpenSSL, PAM, SSH hardening, nftables, SELinux, AppArmor, system auditing, file security.
Read guide →KVM, Xen, LXC/LXD, Pacemaker, DRBD, keepalived, HAProxy, GFS2/OCFS2, live migration, fencing.
Read guide →Quick-reference command tables organized by domain — system architecture, package management, LVM, networking, security, and more.
Read guide →Get notified when I publish new articles on AI infrastructure, DevOps, and XR development.