Unleashing Wireshark’s Powerful Follow TCP Stream Feature

In security courses such as Learning Tree’s System and Network Security Introduction, we often hear about the insecurity of protocols such as Telnet. These older protocols send their data – including login credentials – over the network in the clear. While ssh, a secure alternative to Telnet, is used in many applications today, many sites […]
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A New Way To Learn the Critical Skill of Storytelling

A critical skill for leaders and aspiring leaders is storytelling. Throughout history, stories have been an essential form of communication. Brain science even gives us reasons why. I love to listen to and tell stories. Most people do. We tell stories to friends at social gatherings, share stories about work successes and failures, tell stories […]
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How Do You Conquer Just-In-Time Requirements?

“What is the difference between an up-front requirements document and a fish?” said Gollum, hoping to catch the Hobbit out with his riddle. But Bilbo Baggins, though a Halfling, was an experienced Agilist. He knew the answer. “A fish rots from the head down, “ he said, “but a requirements documents rots from the bottom […]
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SharePoint Security Best Practices

Yes, you can have security and performance! Microsoft has long used the same “object oriented” approach to security within its various “object namespaces”. SharePoint is no different. And Microsoft does have some SharePoint Security Best Practices you may want to consider. Objects and Security Ah… what is an “object namespace” you ask? The Microsoft platform […]
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4 Easy Ways to Practice Your Linux Skills

A few times now, a student taking Learning Tree’s Linux server administration course has told me that their Linux experience is rather limited. Specifically, that they took the introductory user course about a year ago and they “haven’t done much since.” Me: “Uh-oh. So, how much have you used the command line since that course?” […]
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