| 601 | Introduction to Linux   |
| 603 | Linux Workstation: Installing, Customizing, and Securing |
| 604 | Linux Network Server: Installing, Setup, and Securing |
| 608 | Red Hat Linux Boot Camp |
| 609 | Introduction to Red Hat Linux Programming |
| 610 | Apache Administration |
| 612 | Troubleshooting Linux |
| 613 | SuSE Linux Troubleshooting |
| 614 | Red Hat Enterprise Linux 5 Update |
| 615 | Virtualization on Red Hat Linux |
| 617 | Red Hat Xen Virtualization |
| 619 | Introduction to UNIX |
| 620 | Mastering UNIX |
| 622 | Securing Linux |
| 650 | Introduction to MySQL |
| 651 | MySQL Administration |
| 701 | Introduction to Solaris |
| 702 | Solaris 10 Tips and Tricks |
| 703 | Solaris 9 Administration Part I |
| 704 | Solaris 9 Administration Part II |
| 705 | Solaris 10 Update |
| 706 | Solaris 10 Administration Part I |
| 707 | Solaris 10 Administration Part II |
| 708 | Solaris 10 Troubleshooting |
| 712 | Solaris Directory Server |
| 730 | Essential Apache WebServer |
