Tcpdump For You

tcpdump fu:

Packet capture is one of the most fundamental and powerful ways to
do network analysis. You can learn virtually anything about what is
going on within a network by intercepting and examining the raw data
that crosses it. Modern network analysis tools are able to capture,
interpret and describe this network traffic in a human-friendly manner.
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30 Best Sources For Linux / *BSD / Unix Documentation On the Web

30 Best Sources For Linux / *BSD / Unix Documentation On the Web: Man pages are written by sys-admin and developers for IT techs, and are intended more as a reference than as a how to. Man pages are very useful for people who are already familiar with Linux, Unix, and BSD operating systems. Use man pages when you just need to know the syntax for particular commands or configuration file, but they are not helpful for new Linux users. Man pages are not good for learning something new for the first time. Here are thirty best documentation sites on the web for learning Linux and Unix like operating systems.