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=== Investigation 5: How do I setup local hostname resolution? ===
{{Admon/note | Note! | Complete this investigation on all of your VM's and the Fedora host.}}
{{Admon/note | Please take note! | On large public networks like the Internet or even large private networks we use a network service called [http://en.wikipedia.org/wiki/Domain_Name_System Domain Name System (DNS)] to resolve the human friendly hostnames like '''fedoraproject.org''' to the computer friendly 32bit numeric addresses used by the IP protocol. On smaller ad-hoc networks we can use the <code>/etc/hosts</code> on each system to resolve names to addresses.}}
|}
=== Investigation 6: How do I collect the MAC (Hardware) addresses of computers on my network? ===
{{Admon/note | Note! | Complete this investigation on your Fedora host.}}
While we use 32bit IP addresses to communicate over an internetwork, on the local ethernet network packets are delivered to a 48bit hardware address (sometimes called a MAC address). The ARP protocol resolves 32bit IP addresses to 48bit MAC addresses by using a broadcast and caching the results. We can examine the ARP cache to get the MAC addresses of other computers on our local network.
# On the fedora host <code>ping</code> each of your VM's
# Examine the contents of the ARP cache by using the command <code>arp -n</code>
=== Investigation 5: IPTABLES -- Basic Function/Configuration ===