...
- IP address of the server calling the APIs: in order to use DirectLink you must enter your IP address(es) here, separated with a ; (semi-colon).
For example, a localhost server would be 127.0.0.1 - make sure to enter all IP addresses you will use. This is not your personal browser IP, but your server IP that hosts Magento. Use a ping command to find out what your server IP is if you don't know. - SHA-IN pass phrase: this is another SHA field, but specifically for DirectLink payments. Make sure to enter a strong value here. You must later copy this value to Magento:
...