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DynURL configuration with Synology

Open the DNS zone which you want to connect with Dynamic DNS. Find the A record which you want to be updated dynamically and click on the arrows on the row for this record. You will see the Dynamic URL for update of the record.

After that, try with following URL as provider query URL:

https://ipv4.cloudns.net/api/dynamicURL/?q=__PASSWORD__&ip=__MYIP__

ClouDNS must be configured as a Customized Provider with the above URL.

Following data should be filled in the DDNS settings:

Service provider: ClouDNS (this is the name, you have configured as custom provider)
Hostname: (you can leave it empty)
Username/Email: (you can leave it empty)
Password/Key: generated_key (the key that has been generated when you click on the arrows. You will get the following URL: https://ipv4.cloudns.net/api/dynamicURL/?q=generated_key (the key is located after ?q=))

Note that __PASSWORD__ and __MYIP__ are variables and you must enter them like that, not to change them to a password and an IP address.

Also another option is to connect to your Synology over SSH and add a new cron job. You can do this by following commands:

1) open the crontab with the following command:

crontab -e

2) add the following line to the end of the file:

0 * * * * wget -q --read-timeout=0.0 --waitretry=5 --tries=400 --background https://ipv4.cloudns.net/api/dynamicURL/?q=generated_key

3) save the file, usually it is opened with the text editor "nano", so you can do this by Ctrl+X, Y and Enter.

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