dig

DNS lookup utility. More information: https://manned.org/dig.

• Lookup the IP(s) associated with a hostname (A records):
  dig +short {{example.com}}
• Get a detailed answer for a given domain (A records):
  dig +noall +answer {{example.com}}
• Query a specific DNS record type associated with a given domain name:
  dig +short {{example.com}} {{A|MX|TXT|CNAME|NS}}
• Get all types of records for a given domain name:
  dig {{example.com}} ANY
• Specify an alternate DNS server to query:
  dig @{{8.8.8.8}} {{example.com}}
• Perform a reverse DNS lookup on an IP address (PTR record):
  dig -x {{8.8.8.8}}
• Find authoritative name servers for the zone and display SOA records:
  dig +nssearch {{example.com}}
• Perform iterative queries and display the entire trace path to resolve a domain name:
  dig +trace {{example.com}}