This is a simple DNS client written for a networking course. Run "make" to build the application.

Usage: ./dnsclient [-t <timeout>] [-i <max-retries>] [-p <port>] [-ns|-mx] @<server> <name>

-t <timeout>       the max time to wait in seconds for a server to respond
-i <max-retries>   the number of times to retry a request after a failure
-p <port>          the port to connect to the DNS server
-ns                returns a list of name server records
-mx                returns a list of mail exchange records
@server            the IP address of the DNS server
name               the domain name to resolve