/ddns-firewall

Mini-program for adding inbound exception rules to Windows Firewall, especially for DDNSes

Primary LanguagePython

About ddns-firewall

Need to create firewall rules for hosts which do not have static IP addresses? This program allows you to do so if you're able to assign DDNSes to each of those hosts. This is how the program operates:

  • At each time interval defined by you (e.g. 1 hourly), it will:
    1. Read your list of whitelisted hosts and ports
    2. Resolve those whitelisted hostnames to IP addresses
    3. Add those whitelisted IP addresses and ports to Windows Firewall
    4. Remove the outdated rules

That's it! It's a bit hack-ish but unfortunately I could not find anything better for free at this moment.

Build

  1. Make sure you have Python 2.7 and py2exe installed.
  2. In the project root folder, execute python setup.py.
  3. Distribute dist\main.exe.

Usage

  1. Make sure you have the necessary runtime DDLs.
  2. Create whitelist.txt containing a list of whitelisted hosts/IP addresses and ports. For example: 
    google.com 9999
192.168.1.1 3000
  3. Run main.exe as Administrator.
  4. Add main.exe to startup, if necessary.
  5. Enable Windows Firewall.