nslookup:

set type=MX --mail exchange server
set type=NS -- Name Server
set type=HINFO -- server info
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nslookup redhat.com 
-- nslookup followed by the domain name will display the “A Record” ( IP Address ) of the domain.

nslookup -query=mx redhat.com 
-- MX ( Mail Exchange ) record maps a domain name to a list of mail exchange servers for that domain. The MX record tells that all the mails sent to “@redhat.com” should be routed to the Mail server in that domain.

nslookup -type=ns redhat.com
-- NS ( Name Server ) record maps a domain name to a list of DNS servers authoritative for that domain. It will output the name serves which are associated with the given domain.

nslookup -type=soa redhat.com
-- SOA record ( start of authority ), provides the authoritative information about the domain, the e-mail address of the domain admin, the domain serial number, etc…

nslookup -type=any google.com
-- We can also view all the available DNS records using -query=any option.

nslookup 209.132.183.181
-- You can also do the reverse DNS look-up by providing the IP Address as argument to nslookup.

nslookup redhat.com ns1.redhat.com
-- Instead of using default DNS server’s for querying, you can also specify a particular name server to resolve the domain name.

nslookup -port 56 redhat.com
-- By default DNS servers uses the port number 53. If for any reasons, the port number got changed, then we can specify the port number using -port option

nslookup -timeout=10 redhat.com
-- You can change the default timeout to wait for a reply using -timeout option.

nslookup -debug redhat.com
-- You can turn on/off the debugging using -debug option in the command line