#Setup a DNS server on your '''antarctica''' virtual machine noting the following items below:<ol type="a"><li>This virtual machine will be the '''Slave DNS server''' (in case the Master Name Server goes down).</li><li>This virtual machine will obtain its zone files by copying them from the Master Name Server.</li><li>This Slave DNS server will check for updated records from the Master DNS server every five three days. If the initial attempt fails, then it will attempt every twelve twenty-four hours until it succeeds, or two three weeks have passed.</li><li>This machine will provide '''forward''' and '''reverse''' lookups of ALL machines in the '''continents.earth.ops''' zone, the zone files for which will be obtained from '''australinea.continents.earth.ops'''.</li><li>Only machines within the '''continents.earth.ops''' domain will be allowed to query this machine.</li><li>This machine will not provide recursive lookup capabilities for any machines.<br><br></li></ol>