nslookup
With Nslookup, we can search for domain name servers on the Internet and ask them for information about hosts and domains.
# Query `A` records by submitting a domain name: default behaviour
nslookup $TARGET
# We can use the `-query` parameter to search specific resource records
# Querying: A Records for a Subdomain
nslookup -query=A $TARGET
# Querying: PTR Records for an IP Address
nslookup -query=PTR 31.13.92.36
# Querying: ANY Existing Records
nslookup -query=ANY $TARGET
# Querying: TXT Records
nslookup -query=TXT $TARGET
# Querying: MX Records
nslookup -query=MX $TARGET
# Specify a nameserver if needed by adding `@<nameserver/IP>` to the command
References:
- nslookup (https://linux.die.net/man/1/nslookup)