dh-dns

DreamHost DNS Updater

This project is intended to simulate dynamic DNS for DreamHost customers. It will monitor the specified domains on your DreamHost account and keep them updated when your IP public changes.

The current version support IPv4 only.

Configuration

• Generate an API key here: https://panel.dreamhost.com/?tree=home.api
  • I suggest giving access only to the DNS functions (all 3 are required)
  • Paste the API key at the top of dh-dns.py (API_KEY = "YOUR_API_KEY_GOES_HERE")
• Update the DOMAINS list at the top of dh-dns.py with the domains you want to monitor (DOMAINS = ["dyn.example.com","test.example.com"])
• Update the COMMENT if you wish. This will be added to the DNS records if not blank (COMMENT = "Last updated by dh-dns: {date}")
• Update UPDATE_INTERVAL if you wish to update more or less frequently. Default is 60 minutes (UPDATE_INTERVAL = 60)
• Update LOG_LEVEL if you wish to log more or less info. Available options are WARNING, INFO, DEBUG and each will give more info than the last (LOG_LEVEL = "INFO")

Running

• Install Python (written for Python 3.5+ as of v1.4, might not work properly with earlier versions)
• Install dependent modules:
  • pip install pyprowl
  • pip install IPy
  • pip install requests
• I run this on my Synology NAS as a scheduled task (at system start), using dh-dns.sh as the startup script

Issues/Questions/Suggestions

• Feel free to post an issue on GitHub
• If you have questions or suggestions, message me on reddit (/u/toddrob), or email me (todd at toddrob.com)

Changelog

v1.4

• Updated to run on Python 3.5+
• Added support for flake8 linting and black formatting
• Removed simplejson and urllib2 dependencies, replaced with requests
• Removed Prowl class in favor of pyprowl module
• Updated to use api.ipify.org to get current public IP

v1.2

• Added support for Prowl notifications
• Moved dh-dns.log to logs directory, set weekly log file rotation with retention of 3 previous files (via Logger class)
• Add IPy and simplejson dependency installs to dh-dns.sh startup script

v1.1

• Check individual domains even if last known IP matches newly-detected IP. That way if an update failed last time around, it will try again.
• Improved logging
• Added dh-dns.sh to run as a daemon on Linux (I use it on Synology)
• Updated README