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DNS lookup utility.

# To lookup the IP(s) associated with a hostname (A records):
dig +short <>

# To get a detailed answer for a given domain (A records):
dig +noall +answer <>

# To query a specific DNS record type associated with a given domain name:
dig +short <> <A|MX|TXT|CNAME|NS>

# To get all types of records for a given domain name:
dig <> ANY

# To specify an alternate DNS server to query:
dig @<> <>

# To perform a reverse DNS lookup on an IP address (PTR record):
dig -x <>

# To find authoritative name servers for the zone and display SOA records:
dig +nssearch <>

# To perform iterative queries and display the entire trace path to resolve a domain name:
dig +trace <>