zubir2k/Cloudflare.md

## Cloudflare.md

      
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              Cloudflare.md
            
          
    Cloudflare DNS Bash Script

Simple bash script that will update your A record to your current IP. 

This script can be used in Synology Task Scheduler.

Preparing Setup


To get your Cloudflare Zone ID and API key, log in to the Cloudflare Dashboard for the domain you want to use. Your Zone ID will be displayed in the bottom right corner.


To get your API Key, create an API Token with Zone:Zone:Read and Zone:DNS:Edit permissions for all zones in your account.
Cloudflare API Tokens Guide


To get your Record ID, run this command line after getting both Zone ID and API key:


curl -s -X GET "https://api.cloudflare.com/client/v4/zones/YOUR_ZONE_ID/dns_records?name=example.com" -H "Authorization:Bearer YOUR_API_KEY" -H "Content-Type: application/json"
Cloudflare will return a string that begins with {"result":[{"id":"abcdefg12345", - the string in quotes after “id’: is your record ID.

Store the 3 items into the bash script.

Setting up in Synology


Go to Synology Control Panel > Task Scheduler
Create new > Scheduled Task > User-defined Script
Provide a name to your task as Cloudflare, select user as root
At the Schedule tab, set as Daily, and set Time to run every 10min (or to your preference). 

(Dont forget to select end time at 23:50)


Go to Task settings tab, and paste the bash script at the Run Command.
Press OK to save. Enter your Synology password to continue.
You may run the script for the first time.


## cloudflare.sh
#!/bin/bash

# Your Cloudflare API credentials
api_key="YOUR_API_KEY"
zone_id="YOUR_ZONE_ID"
record_id="YOUR_RECORD_ID"

# Domain
domain="example.com"  # Replace with your domain

# Get your current IP address from a web service
new_ip=$(curl -s https://ipinfo.io/ip)

# Cloudflare API endpoint URL
url="https://api.cloudflare.com/client/v4/zones/$zone_id/dns_records/$record_id"

# Set the headers for the request
headers="Authorization: Bearer $api_key"
content_type="Content-Type: application/json"

# Create JSON data for the A record update
data="{\"type\":\"A\",\"name\":\"$domain\",\"content\":\"$new_ip\",\"ttl\":1,\"proxied\":true}"

# Make a PUT request to update the A record
response=$(curl -s -X PUT -H "$headers" -H "$content_type" --data "$data" "$url")

# Check if the response indicates success
if [[ $response == *"\"success\":true"* ]]; then
  echo "A record updated successfully."
  echo "IP: $new_ip"
else
  echo "Failed to update A record."
  echo "Response: $response"
fi
	#!/bin/bash

	# Your Cloudflare API credentials
	api_key="YOUR_API_KEY"
	zone_id="YOUR_ZONE_ID"
	record_id="YOUR_RECORD_ID"

	# Domain
	domain="example.com" # Replace with your domain

	# Get your current IP address from a web service
	new_ip=$(curl -s https://ipinfo.io/ip)

	# Cloudflare API endpoint URL
	url="https://api.cloudflare.com/client/v4/zones/$zone_id/dns_records/$record_id"

	# Set the headers for the request
	headers="Authorization: Bearer $api_key"
	content_type="Content-Type: application/json"

	# Create JSON data for the A record update
	data="{\"type\":\"A\",\"name\":\"$domain\",\"content\":\"$new_ip\",\"ttl\":1,\"proxied\":true}"

	# Make a PUT request to update the A record
	response=$(curl -s -X PUT -H "$headers" -H "$content_type" --data "$data" "$url")

	# Check if the response indicates success
	if [[ $response == "\"success\":true" ]]; then
	echo "A record updated successfully."
	echo "IP: $new_ip"
	else
	echo "Failed to update A record."
	echo "Response: $response"
	fi