Nslookup

1. To find the A record of а domain

nslookup example.com

1. To check the NS records of a domain

nslookup -type=ns example.com

1. To query the SOA record of a domain

nslookup -type=soa example.com

1. To find the MX records responsible for the email exchange

nslookup -query=mx example.com

1. To find all of the available DNS records of a domain

nslookup -type=any example.com