E-Lins

You may use Dynu dynamic DNS service with E-Lins's 'custom' option.

From the main menu, select Services then DDNS. Use the following settings:

Enabled: check the check box
IP address version: IPv4-Address if you are updating ipv4 address, otherwise IPv6-Address

DDNS Service provider[IPv4]

Custom update-URL: https://api.dynu.com/nic/update?hostname=yourhost
Custom update-script:
Hostname/Domain: enter your hostname. You may find it in the Control Panel or sign up using here.
Username: enter your Dynu username, which could be found in My Account section of the control panel
Password: enter your Dynu password or IP update password. MD5 or SHA256 hash of the password is also accepted on our server side.

Dynu Custom IP Update URL

Update one domain name

Non SSL: http://api.dynu.com/nic/update?hostname=example.dynuddns.com

SSL Format: https://api.dynu.com/nic/update?hostname=example.dynuddns.com

Update all domains in your account that do not have a group

Non SSL: http://api.dynu.com/nic/update?username=USERNAME

SSL Format: https://api.dynu.com/nic/update?username=USERNAME

Update an alias

Non SSL: http://api.dynu.com/nic/update?hostname=example.dynu.com&alias=Alias

SSL Format: https://api.dynu.com/nic/update?hostname=example.dynu.com&alias=Alias

Update all the domains/hostnames in a group

Non SSL: http://api.dynu.com/nic/update?username=USERNAME&group=GROUPNAME

SSL Format: https://api.dynu.com/nic/update?username=USERNAME&group=GROUPNAME

If you still have questions on the configuration, you may refer to the API page or contact support.