pycf

pycf is a basic dynamic DNS updater that operates only with the CloudFlare API to update hosts.

Why?

I got sick of ddclient not working with CloudFlare - even the latest version packaged with "Debian Unstable" will not work with CloudFlare's API, and I'm not holding my breath for a working version.

Requirements

• Python 3 and above
• cURL installed and accessible by "cURL" (most Linux distros)
• pycf.json file - rename pycf-dist.json to pycf.json and configure it first
• crontab or similar system - you'll want to run this at set intervals
  • e.g. */5 * * * * python pycf.py will run every 5 minutes

Configuration

A basic configuration is supplied with pycf (includes all supported settings):

{
   "cloudflare": {
      "checkip":"http:\/\/checkip.proxycha.in",
      "api":"https:\/\/www.cloudflare.com\/api_json.html"
   },
   "account": {
      "email":"email address",
      "key":"api key",
      "zone":"top level domain"
   },
   "zone": {
      "name":"domain to update",
      "proxy":false,
      "type":"A",
      "ttl":300
   }
}

You'll want to replace the following settings:

• Account
  • email - your CloudFlare email address
  • key - your CloudFlare API key
  • zone - your top level domain (e.g. domain.com), not your dynamic domain name (e.g. myip.domain.com)
• Zone
  • name - your dynamic DNS domain (e.g. myip.domain.com)
  • proxy - if you use CloudFlare for DDoS/caching, set this to true
  • type - DNS record type, by default this is "A" (for IPv4 addresses) - should work with "AAAA" records too (for IPv6 addresses)
  • ttl - time-to-live value of the DNS record - 5 minutes is good for dynamic hosts

Optionally, you can also change:

• CloudFlare
  • checkip - any HTTP resource (or really anything that cURL can handle) which returns JUST the current IP address (see: example resource)
  • api - CloudFlare API URI - not sure why this would change (..ever), but can't hurt to have this be easily changed