nslookup

Query name servers for various domain records. More information: https://manned.org/nslookup.

  • Query your system's default name server for an IP address (A record) of the domain:

nslookup example.com

  • Query a given name server for a NS record of the domain:

nslookup -type=NS example.com 8.8.8.8

  • Query for a reverse lookup (PTR record) of an IP address:

nslookup -type=PTR 54.240.162.118

  • Query for ANY available records using TCP protocol:

nslookup -vc -type=ANY example.com

  • Query a given name server for the whole zone file (zone transfer) of the domain using TCP protocol:

nslookup -vc -type=AXFR example.com name_server

  • Query for a mail server (MX record) of the domain, showing details of the transaction:

nslookup -type=MX -debug example.com

  • Query a given name server on a specific port number for a TXT record of the domain:

nslookup -port=port_number -type=TXT example.com name_server

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