The idea is to use a git repository as DDNS provider.

Use gitdyndns.push on your server (e.g. VPN server in your LAN at home). For example define a cron job that will update the git repo (and push) every 12h.

Use gitdyndns.pull on your laptop to fetch the latest commits (changes) from your git repo - which has been updated by the server. Use the output of gitdyndns.pull as an input for the openvpn command.

$ gem install gitdyndns

• create a remote git repo (e.g. bitbucket or gist)
• clone it to your server and laptop
• make sure that the server can commit to the repo (SSH key)
• set your configuration
• set your cron job

gitdyndns configuration can either be done in a config file or via environment variables (in that order).

Configuration file. Put a config file .gitdyndns.yaml in your home, e.g. ~/.gitdyndns.yaml. The file expects two values:

lan_name: my_network
repo_path: /home/username/my_gitddns_repo

Configuration environment variable Instead of using the config file, export two env vars in your login shell.

epxort GITDYNDNS_LAN_NAME="my_network"
export GITDYNDNS_REPO_PATH="/home/username/my_gitddns_repo"

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request