Security

In security, knowledge (or knowing) is usually the most important thing. System administrators need to be aware of everything that happens on their system. This requires checking the logs and doing frequent checks on the settings you have set. It possible that things can be changed on the system without anyone ever noticing. I have heard it said that the average computer gets port scanned 15 minutes after coming online. Sometimes the first you know about you system being hacked into is when your system starts to attack someone else and they let you know. This can be quite a hit on your personal pride. Chapter 9 will go into this subject.