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==IPTABLES TROUBLESHOOTING RESOURCES==[[Category:OPS335]][[Category:OPS335 Labs]]
Online References:== OBJECTIVE & PREPARATION ==This lab will provide more hands-on experience with using iptables, and troubleshooting iptables issues.
* [http://zenit.senecac.on.ca/wiki/index.php/OPS335_Lab_1#Linux_Network_Connection_Configuration_Troubleshooting Test Network Connectivity] (From Lab1)
*[https://community.rackspace.com/products/f/25/t/248 Basic IPTABLES Troubleshooting]
==ADDITIONAL IPTABLES TROUBLESHOOTING==
===Purpose===
This lab will provide more hands-on experience with troubleshooting iptables issues.
===IPTABLES and Routing Troubleshooting Resources===
Some articles that you can use as a reference if you are still experiencing problems with iptables:
Standardizing the format (intro, conclusion).
=== Online Resources===
* [http://zenit.senecac.on.ca/wiki/index.php/OPS335_Lab_1#Linux_Network_Connection_Configuration_Troubleshooting Test Network Connectivity] (From Lab1)
* [http://www.microhowto.info/troubleshooting/troubleshooting_iptables.html Troubleshooting iptables]
== COMPLETING THE LAB ==
In completing this lab you have gained further practice using iptables. Each of your machines should now be protected by a custom firewall that we will continue to build on throughout the course. You have also gained experience troubleshooting iptables and determining what rules might need to be changed to allow desired traffic (or block undesired traffic). '''Depending on your professor you will either be asked to submit the lab in class, or online. Follow the appropriate set of instructions below.''' ===Online Submission===Follow the instructions for lab 2b on moodle. ===In Class Submission===[[Image:lab1_signoff.png|thumb|right|300px|Students should be prepared with '''all required commands (system information) displayed in a terminal (or multiple terminals) prior to calling the instructor for signoff'''.]]
'''Arrange evidence (command output) for each of these items on your screen, then ask your instructor to review them and sign off on the lab's completion:'''
#List 3 separate techniques that you used to help troubleshoot to detect and fix iptables from running the shell script in the previous section.<br><br>
#Without looking at the table above, list the 4 tips for troubleshooting iptables (in order).<br><br>
#After completing this lab, how does the above-mentioned shell script work to cause problems with iptables?
