Found in 4 comments on Hacker News
akandiah · 2015-09-11 · Original thread
Computer Networks by Tanenbaum: http://www.amazon.com/Computer-Networks-Edition-Andrew-Tanen...

It's a classic.

olalonde · 2014-12-29 · Original thread
If you have some time, I suggest you read http://www.amazon.com/Computer-Networks-Edition-Andrew-Tanen...

You might also want to follow a CCNA course online.

maggit · 2012-11-20 · Original thread
There are probably interesting intros out there, but for what it's worth, the standard text book on computer networks is Tanenbaum: http://www.amazon.com/Computer-Networks-5th-Andrew-Tanenbaum...

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