Basics of securing a Linux server

One of the most important jobs that someone who calls themselves a “System Administrator” has is securing their servers. Whether it’s a personal server you are tinkering with, or a production server at work somewhere, keeping a server secure is paramount for many reasons, not just keeping your data safe. If your server were to get compromised, depending on what happened, it could be used as a zombie to target other machines in a massive DDoS attack. It might be used to send yet more spam out to the users of the world, or it could even be setup as a platform to launch more viruses and attacks against unsuspecting users all over the Internet.

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