Co-authors Michael Scarborough and Ryan Ballmer discuss some key differences in the new Global Knowledge ITIL courseware.
Michael Scarborough and Ryan Ballmer, co-authors of Global Knowledge ITIL courseware, discuss how to become an ITIL expert.
Michael Scarborough and Ryan Ballmer, co-authors of Global Knowledge ITIL courseware, discuss why ITIL is important to businesses.
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.
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Read more about the best IT skills to learn in 2014. Global Knowledge’s resource library features comprehensive articles and handy how-to lists.
Cloud adoption continues to soar. In fact, worldwide Infrastructure-as-a-Service (IaaS) public cloud services grew by 29.5 percent in 2017, according to Gartner. If it’s not in a company’s current plans to utilize cloud technology, it most certainly will be (or should be) in the next couple of years.
In light of the recent tragic events in Haiti, it might be a good time to review some of the requirements for a well designed Uninterruptible Power Source (UPS) to be included in all of our critical network installations. As a CCNA, we are called upon to help maintai...
AMC’s television series “Halt and Catch Fire” shows North Texas’ rise as the “Silicon Prairie.” In the 1980s and early 1990s, it’s where IBM PC cloning was explored and where first-person shooter games were created. It’s also the site of the first “logic bomb”—the source of my horror story.