GL615 · 5 days · 23+ hrs hands-on labs

Linux For Unix Administrators

Available for RHEL· SLES

Built for experienced Unix administrators moving to enterprise Linux, this accelerated course combines the full scope of GL250 (Enterprise Linux Systems Administration) and GL275 (Enterprise Linux Networking Services) into a single intensive program. Students gain end-to-end proficiency in Linux systems administration and production network services deployment on their choice of RHEL or SLES, with Unix-to-Linux comparison matrices throughout the course to bridge existing knowledge.

The curriculum spans kernel and hardware management, systemd service control, GRUB2 boot configuration, and package management with RPM, dnf, and zypper. Core infrastructure topics include local and remote storage administration with LVM, software RAID, NFS, and iSCSI, along with user account management using PAM and LDAP directory integration. Security hardening covers SELinux, AppArmor, Netfilter, and POSIX file access control lists. The networking services half of the course addresses BIND DNS, Apache web server, MariaDB databases, 389 Directory Server, vsFTPd, Squid proxy, Samba file sharing, Postfix mail transport, and Dovecot and Cyrus IMAP.

All twenty-one chapters include hands-on lab exercises where students configure, deploy, and troubleshoot services on live systems. With over 100 labs, the course builds practical skills that translate directly from Unix administration experience to Linux production environments.

Who Should Attend

Experienced Unix system administrators, infrastructure engineers, and IT professionals transitioning from commercial Unix platforms such as AIX, HP-UX, or Solaris to enterprise Linux who need to efficiently build both systems administration and networking services skills in a single accelerated course.

Skills Students Will Gain

Manage Linux kernel modules, hardware discovery, and device configuration with udev
Configure and administer systemd services, targets, and the GRUB2 boot process
Administer software packages using RPM, dnf, and zypper across enterprise distributions
Partition and manage local storage with fdisk, gdisk, parted, LVM, and software RAID
Configure remote storage access using NFS, AutoFS, and iSCSI
Manage user and group accounts with PAM, NSS, and 389 Directory Server
Implement security policies using SELinux, AppArmor, iptables, and file access control lists
Configure network interfaces, routing, DNS resolution, and interface bonding with NetworkManager
Deploy and administer BIND DNS, Apache httpd, vsFTPd, and Squid proxy services
Configure Postfix mail transport, Dovecot and Cyrus IMAP/POP, and email filtering with SpamAssassin
Set up Samba file and print sharing for Windows interoperability
Monitor system performance and troubleshoot issues using logging, sar, and rescue environments

Chapters & Labs

82 labs · 23+ hours hands-on
  1. Linux Orientation 6 topics
  2. Linux Kernel & Hardware 17 topics 5 labs · 75 min
  3. Systemd Overview 8 topics 2 labs · 30 min
  4. GRUB2/Systemd Boot Process 14 topics 4 labs · 35 min
  5. Software Maintenance 12 topics 5 labs · 60 min
  6. Local Storage Administration 9 topics 2 labs · 30 min
  7. LVM & RAID 12 topics 3 labs · 65 min
  8. Remote Storage Administration 11 topics 3 labs · 45 min
  9. User/Group Administration 15 topics 6 labs · 55 min
  10. Security Administration 27 topics 6 labs · 75 min
  11. Process Administration 6 topics 2 labs · 15 min
  12. Networking 22 topics 6 labs · 50 min
  13. Monitoring & Troubleshooting 19 topics 5 labs · 80 min
  14. BIND DNS 19 topics 3 labs · 80 min
  15. SQL Fundamentals and MariaDB 6 topics 4 labs · 105 min
  16. 389 Directory Server 6 topics 1 lab · 25 min
  17. vsFTPd & Apache 16 topics 6 labs · 135 min
  18. SQUID Proxy Server 8 topics 4 labs · 40 min
  19. Samba 14 topics 4 labs · 55 min
  20. Postfix 15 topics 5 labs · 81 min
  21. Email Services 7 topics 3 labs · 65 min

Apply for partner access to see full topic and lab details.

Appendices

  • Installing
  • Installing

Prerequisites

Experience as a Unix system administrator, including familiarity with the Unix command line, file editing, network concepts, the TCP/IP protocol suite, and basic Unix security. GL120 (Linux Fundamentals) or equivalent Linux command-line experience is helpful but not required.