For our blog’s inaugural article, we chose one of the most common, yet vexing problems that new administrators encounter: DNS misconfiguration (domain name system). Many of us stumbled our way through these problems in the early days of TCP/IP emergence as the dominant network stack. We mainly knew of DNS from working with our Internet service providers at home. That knowledge was incomplete, so we could not fully understand the situations that greeted us in business environments. The struggle was so pervasive that I once saw someone say, “The answer is DNS; the question is irrelevant.” Over twenty years after I learned the rest of the story (the hard way, of course), new administrators still make the same mistakes.

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