Get $100 off a Pluralsight Annual Subscription!

Posted on June 21

Get unlimited access to all of my courses and thousands of others! $100 Off Pluralsight Annual Subscription – Until June 26, 2018

AWS Networking Deep Dive: Route 53 DNS

Posted on May 28


Many of you have been asking for months when my Route 53 course would release. Well, it’s finally here! AWS Networking Deep Dive: Route 53 DNS is now available on Pluralsight. Topics covered include: Configuring Route 53 to work with any domain name, even one registered with a different registrar DNS concepts and how Route […]

101 Public DNS Servers Sorted by Speed

Posted on March 4


You probably know the popular Google DNS server IP addresses by heart: and Before those were around you might have even used Level3’s and Of course, everyone else uses these too, which means these popular servers are under a pretty heavy load. Fortunately, there are faster public DNS servers out there. […]

Installing PowerShell Core on Amazon Linux

Posted on February 25


In preparation for my latest course in the AWS Networking Deep Dive series, I wanted to install PowerShell Core on an Amazon Linux instance to test out cross-platform compatibility for some scripts. Specifically, I wanted to see if I could use methods in the System.Net.Dns class to perform name resolution. The dnsclient PowerShell module provides […]

Half off Learn Cisco Network Administration in a Month of Lunches

Posted on February 23


Today only! Get half off my book Learn Cisco Network Administration in a Month of Lunches. Just use code dotd022318au at