Well, since OP didn't share his solution. I will post mine here for those struggling to get this to work.
Solution 1:
https://github.com/RMerl/asuswrt-merlin.ng/wiki/DDNS-Sample-Scripts#cloudflare
This one requires the record ID and doesn't seem to update the AAAA record for your ipv6 address. It's also a little bit more complicated, though the record ID can be obtained through the following steps:-
a. Log in to your Cloudflare account.
b. Go to the "My Profile" section.
c. Under the "API Tokens" tab, create a new token with the necessary permissions to access DNS records.
d. Open your terminal in any linux system and use curl to make a GET request to list DNS records:
Code:
curl -X GET "https://api.cloudflare.com/client/v4/zones/{zone_id}/dns_records" \
-H "Authorization: Bearer {API_TOKEN}" \
-H "Content-Type: application/json"
Note: Replace {zone_id} with the ID of your zone and {API_TOKEN} with your Cloudflare API token.
f. After executing the command, the response will contain the DNS records for your zone, including their record IDs. Locate the specific DNS record you are interested in, and note down its record ID.
Solution 2:
https://github.com/alphabt/asuswrt-merlin-ddns-cloudflare/blob/master/ddns-start
Solution 3: - A simplified script from solution 2, which is what I'm using:
Code:
#!/bin/sh
API_TOKEN="" # Your API Token
ZONE_ID="" # Your zone id, hex16 string
RECORD_NAME="" # Your DNS record name, e.g. sub.example.com
RECORD_TTL="1" # TTL in seconds (1=auto)
UPDATE_IPv6=true # Set to true if you want to also update IPv6
get_dns_record_ids() {
local record_name=$1
local type=$2
local api_token=$3
local zone_id=$4
RESPONSE="$(curl -s -X GET "https://api.cloudflare.com/client/v4/zones/${zone_id}/dns_records?type=${type}&name=${record_name}" \
-H "Authorization: Bearer ${api_token}" \
-H "Content-Type:application/json")"
echo $RESPONSE | python -c "
import sys, json
data = json.load(sys.stdin)
for record in data['result']:
print (record['id'])"
}
update_dns_record() {
local record_name=$1
local record_id=$2
local type=$3
local ip=$4
local record_ttl=$5
local api_token=$6
local zone_id=$7
curl -s -X PUT "https://api.cloudflare.com/client/v4/zones/${zone_id}/dns_records/${record_id}" \
-H "Authorization: Bearer ${api_token}" \
-H "Content-Type: application/json" \
--data "{\"type\":\"${type}\",\"name\":\"${record_name}\",\"content\":\"${ip}\",\"ttl\":${record_ttl},\"proxied\":false}"
}
RESULT=true
# Update IPv4
IPv4=${1}
A_RECORD_IDS=$(get_dns_record_ids $RECORD_NAME A $API_TOKEN $ZONE_ID)
for A_RECORD_ID in $A_RECORD_IDS; do
RESPONSE="$(update_dns_record $RECORD_NAME $A_RECORD_ID A $IPv4 $RECORD_TTL $API_TOKEN $ZONE_ID)"
echo $RESPONSE | grep '"success":\ *true' >/dev/null
if [ $? -eq 0 ]; then
logger "Updated A record for ${RECORD_NAME} to ${IPv4}"
else
logger "Unable to update A record for ${RECORD_NAME}"
RESULT=false
fi
done
if [ "$UPDATE_IPv6" == true ]; then
# Update IPv6
IPv6=$(ip -6 addr list scope global $device | grep -v " fd" | sed -n 's/.*inet6 \([0-9a-f:]\+\).*/\1/p' | head -n 1)
AAAA_RECORD_IDS=$(get_dns_record_ids $RECORD_NAME AAAA $API_TOKEN $ZONE_ID)
for AAAA_RECORD_ID in $AAAA_RECORD_IDS; do
RESPONSE="$(update_dns_record $RECORD_NAME $AAAA_RECORD_ID AAAA $IPv6 $RECORD_TTL $API_TOKEN $ZONE_ID)"
echo $RESPONSE | grep '"success":\ *true' >/dev/null
if [ $? -eq 0 ]; then
logger "Updated AAAA record for ${RECORD_NAME} to ${IPv6}"
else
logger "Unable to update AAAA record for ${RECORD_NAME}"
RESULT=false
fi
done
fi
if [ "$RESULT" == true ]; then
/sbin/ddns_custom_updated 1
else
/sbin/ddns_custom_updated 0
fi
For both solution 2 and 3, you just have to copy the above script to the ddns-start script with the following command
Code:
nano /jffs/scripts/ddns-start
And fill in the details of
API_TOKEN="" # Your API Token
ZONE_ID="" # Your zone id, hex16 string
RECORD_NAME="" # Your DNS record name, e.g. sub.example.com
that can be found from cloudflare account.
