Cloudflare DDNS bash Script for most Linux distributions and MacOS.
Choose any source IP address to update external or internal (WAN/LAN).
Cloudflare's options proxy and TTL configurable via the parameters.
PowerShell Script for Windows can be found here
- curl
- api-token with ZONE-DNS-EDIT Permissions
- DNS Record must be pre created (api-token should only edit dns records)
wget https://raw.githubusercontent.com/IsaacFL/cloudflareDDNS-Bash/main/updateDNS6.sh
sudo chmod +x updateDNS6.sh
sudo mv updateDNS6.sh /usr/local/bin/updateDNS6
Update the config parameters
sudo nano /usr/local/bin/updateDNS6| Option | Example | Description |
|---|---|---|
| what_ip | internal | Which IP should be used for the record: internal/external |
| what_interface | eth0 | For internal IP, provide interface name |
| dns_record | ddns.example.com | DNS AAAA record which will be updated |
| zoneid | ChangeMe | Cloudflare's Zone ID |
| proxied | false | Use Cloudflare proxy on dns record true/false |
| ttl | 120 | 120-7200 in seconds or 1 for Auto |
| cloudflare_api_token | ChangeMe | Cloudflare API Token KEEP IT PRIVATE!!!! |
updateDNS6You can run the script via crontab
crontab -eHere are some Examples
Run every minute
* * * * * /usr/local/bin/updateDNS6Run every 5 minutes
*/5 * * * * /usr/local/bin/updateDNS6Run at boot
@reboot /usr/local/bin/updateDNS6Run 1 minute after boot
@reboot sleep 60 && /usr/local/bin/updateDNS6Run at 08:00
0 8 * * * /usr/local/bin/updateDNS6Copyright© 3os.org @2020
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