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{{Admon/note | | This command can be read like this: , Insert a line into the iptables OUTPUT chain that will look at tcp information and DROP any packet with a source address from anywhere, to a destination address to anywhere if the destination port = is 80 (WWW.) Let's break down the command to see how it works.

  Try to access the Web. If you have done everything right, you should not have been successful. 12. After you have completed the test execute the following command: '''iptables -F''' Additional Exercises This will flush out all of the rules for iptables. * Using the information you havelearned, try on your own to achieve the same goal as above (block www access to your computer) by using the INPUT chain instead of the OUTPUT chain. * After you have completed this task, flush the iptables again. * Make sure that your ssh server is running on the host machine and try to access it from a virtual machine of your choice. Once you have confirmed that ssh is running on the host machine, modify the iptables setup on the host machine to prevent access to the ssh server from all VM's on the virtual machinenetwork.