CloudflareDNSUpdater

An automatic cloudflare DNS record updater for dynamic IP addresses.

Usage

Once you execute the JAR, you will need to set up your configuration.

Find the config.json from following location:

• Linux: /home/<user>/.config/CloudflareDNSUpdater/config.json
• Windows: C:\Users\<user>\AppData\Roaming\CloudflareDNSUpdater\config.json

Or, you can specify the location of the config.json file by adding following option: -DworkDir=<absolute path>

You should get an API token with the following permissions:

• Zone:Read
• Zone:Edit
• DNS:Edit
• DNS:Read

Config Schema

{
	"zoneId": "", // zone id can be found on your domain's overview page
	"email": "", // your cloudflare account email
	"key": "", // an API token with the permissions mentioned above
	"domainName": "" // the domain name you want to update/create
}

Adding CloudflareDNSUpdater as a service

There are several ways to add CloudflareDNSUpdater as a service.

Windows

Window service system is sucks, I suggest you to use a WinSW.

1. Download both JAR and WinSW.
2. Create a folder named CloudflareDNSUpdater and put the JAR and WinSW in it.
3. Rename WinSW.exe to cfdnsupdater.exe
4. Copy the cfdnsupdater.xml to the folder, and change things as you need.
5. Open CMD, run .\cfdnsupdater.exe install (this may require administrator privilege)

To uninstall service, simply run: .\cfdnsupdater.exe uninstall

Ubuntu

Put the following contents in /etc/systemd/system/cfdnsupdater.service, with replacing the needed things. (you may need sudo to perform this action)

[Unit]
Description=Cloudflare DNS Updater
After=network.target

[Service]
User=root
Environment=
WorkingDirectory=<path to the folder>
ExecStart=java -Xms512M -Xmx1G -Dworkdir=<path to the folder> -jar <path to the jar>
Restart=on-failure

[Install]
WantedBy=multi-user.target

Then execute the following commands:

sudo systemctl daemon-reload
sudo systemctl enable --now cfdnsupdater.service