April 2020
Beginner
688 pages
19h 24m
English
Content preview from Linux Administration: A Beginner's Guide, Eighth Edition, 8th Edition
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14 |
Linux Firewall (Netfilter) |
Many, many moons ago, the Internet was a friendly place where people only wanted to sit around their mainframe computers while holding each other’s hands, singing “Kum Ba Yah” and browsing the three or so available web sites. Everybody loved one another.
On a more serious note, the few original users of the Internet were focused on research and had better things to do than waste their time poking around other people’s infrastructure. Any notion of security that was in place was largely to keep practical jokers from doing silly things. Many administrators made no serious effort to secure their systems. That was then, and this is now!
Unfortunately, as the Internet population grew, so did the threats. ...
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