{{Admon/tip|Graphically Compare File Differences|You can also install a graphical tool that makes it much easier to see differences: '''kompare before.txt after.txt<br><br>NOTE: Make certain to run the command as a regular user (i.e. NOT root!).}}

We will run some iptables commands on your '''host machine''' to practice and get a basic understanding of how to set rules.

'''Record steps, commands, and your observations in INVESTIGATION 1 in your OPS335 lab log-book'''

=INVESTIGATION 2: BEST PRACTICES &amp; CUSTOMIZED CHAINS=