==INVESTIGATION 2: HANDS-ON IPTABLES TROUBLESHOOTING==
You will now get additional practice on troubleshooting iptables by downloading a running a shell script that will create iptables rules that will cause problems. You will then need to use tools and procedures (IPTABLES Troubleshooting Checklist) to determine the cause of the problem and fix that problem.
Download and run '''Perform the following scriptsteps: http://scs.senecacollege.ca/~andrew.smith/ops335/labcheck_network_backup.sh'''
It #Download and run the following script: http://scs.senecacollege.ca/~andrew.smith/ops335/labcheck_network_backup.sh<br><br>This will print out display a menu of exercises. You can pick choose any of them the items in any order, but you should attempt all of them. The script will first reset the firewall settings to CentOS defaults and then make some modifications from those defaults. Don't cheat#It is highly recommended to attempt to troubleshoot and fix the problem instead of reading the shell script and "cheating" to solve the problem. The point of the exercises is for you to find the problem using regular troubleshooting tools, not to reverse-engineer the lab.shell script!#Finish the exercises, and record any information you feel you'll need to remember to solve problems like this in the future (e.g. in a practical test).
