This tool watches a Linux system’s public IPv4 and IPv6 addresses using netlink. When an address changes, it will make a configurable HTTP request (webhook) submitting the current IPv4 and IPv6 addresses.

It can be used to update DynDNS2 compatible dynamic dns services.


  • Install go
  • `go install github.com/markuslindenberg/iphook@latest


  • Set environment variables IPHOOK_USER and IPHOOK_PASSWORD for HTTP authentication
  • Use -url parameter to provide your Dyndns server’s update URL and optional static parameters.
  • Example command line: iphook -url "https://dyndns.example.com/nic/update?hostname=test.example.com"

See iphook -h for advanced options.


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