Tips from IBM, not all that complicated, but worth looking at.
Other tips include…
- Sharing computers on a Linux (or heterogeneous) network.
- IBM’s top 10 Linux articles and tutorials.
- Miscellaneous tips.
- Linux-powered networking: Part 1, Part 2 and Part 3.
- Industrial-strength Linux box lockdown, a howto: Part 1 and Part 2.
- Introduction to cryptology concepts: Part 1, Part 2 and Part 3.