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Practical TLS - October Sale
October is my birthday month, which makes for a good excuse to discount my most popular course: Practical TLS.

Use code OctBDAY2024b to get the course for $58 (originally $297).

Purchase here. Or, for more info on the top rated course on TLS, click here.

Code expires Oct 14, 2024.

subnetting

Wildcard Masks

    If you understand Subnetting, then you probably know that the CIDR notation of /24 correlates to the Subnet Mask of 255.255.255.0. But did you also know both of those correlate to the Wildcard Mask of… Read More »Wildcard Masks

    Subnetting Mastery

      Lately I’ve been working on a Subnetting Mastery video series. The goal is take someone with little to no exposure to subnetting and make them a subnetting pro. I’m happy to announce that the video… Read More »Subnetting Mastery