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System Administrators, or sysadmins, are the “installation specialists”, “configuration specialists” and “fixers” in IT. To get a better understanding of the type of IT training that sysadmins require, we compiled a list of the 10 most-attended Global Knowledge courses by sysadmins.

As IT professionals gravitate away from classroom training and toward on-demand courses and e-learning, IT skills gaps have spiked. Instructor-led training is still the best option to fill critical skills needs and shouldn't be pushed aside entirely for more convenient and cost-effective options.

Prep for Over 40 Microsoft Certifications with GK Polaris Subscription. GK Polaris, delivers a continual payload of skills to ensure mission success.

Navigate the European AI Act with confidence. Learn how to ensure compliance, enhance your AI strategies, and build trust through expert-led training and proactive solutions.

Learn everything you need to know about IT and technology trade shows and how they provide additional opportunities to hear about new technologies, talk with vendors, develop new skills, take certification exams, connect with peers in the industry and have a good time. Read now >

In this post I’ll focus on a topic that’s mentioned in the Cisco FIREWALL training class but isn’t emphasized there or in the online Cisco ASA documentation. When configuring failover on a pair of ASA security appliances, a situation can arise in which network disruption occurs due to the secondary ASA in a failover pair becoming active first and then the primary comes online second. Both the documentation and the courseware point out that this causes the secondary (and active ASA) to swap its interface MAC addresses with those of the primary. Being naturally skeptical about this behavior, I decided to investigate. The rest of this post illustrates my confirmation of this phenomenon.