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→Completing the Lab
==Completing the Lab==
Answer the following questionsin your lab book:
#Use What iptables-save command to show the rules relating apply to DNS. Only show these rules.?#Under what circumstances does DNS use TCP vs UDP?
#What is a zone file and what is it used for?
#Name the zone files used in this lab, and their purpose.
#What is the purpose of /etc/nsswitch.conf?
#What is the purpose of /etc/resolv.conf?
#What is meant by the term "negative cache"?
#What are MX records used for? Add the needed entry to point the MX record to VM02.
#What security features are available for DNS?