- DDNS Cloudflare Bash Script for most Linux, Unix distributions and MacOS.
- Choose any source IP address to update external or internal (WAN/LAN).
- For multiply lan interfaces like Wifi, Docker Networks and Bridges the script will automatically detects the primary Interface by priority.
- Cloudflare's options proxy and TTL configurable via the config file.
- Optional Telegram Notifications
- curl
- Cloudflare api-token with ZONE-DNS-EDIT Permissions
- DNS Record must be pre created (api-token should only edit dns records)
You can the script at any location manually.
MacOS: Don't use the /usr/local/bin/ for the script location. Create a separate folder under your user path /Users/${USER}
The automatic install examples below will place the script at /usr/local/bin/
wget https://raw.githubusercontent.com/fire1ce/DDNS-Cloudflare-Bash/main/update-cloudflare-dns.sh
sudo chmod +x update-cloudflare-dns.sh
sudo mv update-cloudflare-dns.sh /usr/local/bin/update-cloudflare-dnsPlace the config file in the directory as the update-cloudflare-dns
Config file download
wget https://raw.githubusercontent.com/fire1ce/DDNS-Cloudflare-Bash/main/update-cloudflare-dns.conf| Option | Example | Description |
|---|---|---|
| what_ip | internal | Which IP should be used for the record: internal/external |
| dns_record | ddns.example.com | DNS A record which will be updated |
| cloudflare_zone_api_token | ChangeMe | Cloudflare API Token KEEP IT PRIVET!!!! |
| 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 |
| Option | Example | Description |
|---|---|---|
| notify_me_telegram | yes | Use Telegram notifications yes/no |
| telegram_chat_id | ChangeMe | Chat ID of the bot |
| telegtam_bot_API_Token | ChangeMe | Telegtam's Bot API Token |
When placed in /usr/local/bin/
update-cloudflare-dnsOr manually
<path>/.update-cloudflare-dns.shYou can run the script via crontab
crontab -eRun every minute
* * * * * /usr/local/bin/update-cloudflare-dnsRun at boot
@reboot /usr/local/bin/update-cloudflare-dnsRun 1 minute after boot
@reboot sleep 60 && /usr/local/bin/update-cloudflare-dnsRun at 08:00
0 8 * * * /usr/local/bin/update-cloudflare-dnsThis Script will create a log file with only the last run information Log file will be located at the script's location.
Example:
/usr/local/bin/update-cloudflare-dns.logCopyright© 3os.org @2020
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The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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