/doh

stand-alone application for DoH (DNS-over-HTTPS) name resolves and lookups

Primary LanguageCMIT LicenseMIT

doh

Build Status

A libcurl-using application that resolves a host name using DNS-over-HTTPS (DoH).

This code uses POST requests unconditionally for this.

Usage

doh [options] host [DoH URL]

If DoH URL is left out, the Cloudflare DoH server will be used. See also list of public servers

Options:

  • -h shows help output
  • -k enables insecure mode, skipping server certificate validation
  • -t enables server test mode
  • -v enables verbose mode
  • -4 use only IPv4 transport
  • -6 use only IPv6 transport
  • -rNAME:PORT:ADDRESS (e.g., example.com:443:127.0.0.1) (to preload libcurl's DNS cache)
  • -V shows the version number and exits

Examples

$ doh www.example.com
www.example.com from https://dns.cloudflare.com/dns-query
TTL: 2612 seconds
A: 93.184.216.34
AAAA: 2606:2800:0220:0001:0248:1893:25c8:1946

$ doh www.yahoo.com https://dns.google/dns-query
www.yahoo.com from https://dns.google/dns-query
TTL: 36 seconds
A: 87.248.98.8
A: 87.248.98.7
AAAA: 2a00:1288:0110:001c:0000:0000:0000:0004
AAAA: 2a00:1288:0110:001c:0000:0000:0000:0003
CNAME: atsv2-fp.wg1.b.yahoo.com
CNAME: atsv2-fp.wg1.b.yahoo.com