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Compare current public IP with a DNS IP record.
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README.md

check-public-ip

Compare current public IP with a DNS IP record.

check-public-ip fetches your current public IP address and compares it with the IP address resolved from a specified domain name.

This utility was originally created to verify that a dynamic DNS is kept up-to-date for my home gateway. I run a check periodically out of cron:

*/5 * * * *  nobody  check-public-ip --silent gw.example.org

Usage

check-public-ip [--silent|-s] HOST

Options

  • --silent or -s -- Silent mode: only print output when IPs do not match
  • HOST -- Domain name to check against

Requirements

  • Python 3.x
  • requests library

Installation

Install the required Python dependencies:

pip install -r requirements.txt

Author

Courtney Rosenthal <cr@crosenthal.com>

License

This is free and unencumbered software released into the public domain.

See LICENSE for details.