tldr/pages/common/dog.md

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dog

DNS lookup utility. It has colorful output, supports DNS-over-TLS and DNS-over-HTTPS protocols, and can emit JSON. More information: https://dns.lookup.dog.

  • Lookup the IP(s) associated with a hostname (A records):

dog {{example.com}}

  • Query the MX records type associated with a given domain name:

dog {{example.com}} MX

  • Specify a specific DNS server to query (e.g. Cloudflare):

dog {{example.com}} MX @{{1.1.1.1}}

  • Query over TCP rather than UDP:

dog {{example.com}} MX @{{1.1.1.1}} --tcp

  • Query the MX records type associated with a given domain name over TCP using explicit arguments:

dog --query {{example.com}} --type MX --nameserver {{1.1.1.1}} --tcp

  • Lookup the IP(s) associated with a hostname (A records) using DNS over HTTPS (DoH):

dog {{example.com}} --https @{{https://cloudflare-dns.com/dns-query}}