10 easy steps to secure your Linux machine

October 28, 2009 – 6:48 PM

Whether you use a single desktop or manage a lab full of servers, with the various threats we all face from hackers these days you simply have to make sure you’re running a secure ship.

Running Linux gives you some inherent protection from attack, but you still need to take adequate steps to thwart any attempts that people might make to compromise your system.

Here are 10 of the best courses of action that you can take.

(Summary from original article)
1. Create a firewall
2. Disable network servers
3. Use secure alternatives
4. Revoke non-root access
5. Copy your logs
6. Enable password aging
7. Restrict root logins
8. Physically secure your machine
9. Don’t ignore security updates
10. Keep an eye on open files

Source and full details for each step:

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