NovaStor DataCenter v8.2.x and newer
If the DataCenter (DC) server has no access to the internet you have to activate your DC installation offline.
Please use this web form for your offline activation:
Open the DC Web GUI.
Open "Settings" => "Application Settings" => tab "Licensing" (see image 1 below).
The button "Show activation form" opens the default web browser and points you to this URL.
But this will fail if your system has no internet access!
With copy&paste you can save this URL to an editor and save it to an external drive.
Copy&paste the hardware key of your DC installation to an editor and save it to this drive, too.
On another system with internet access:
Open URL using Firefox or Chrome.
Select the desired DC version and enter all required data.
You will have to copy&paste your hardware key of your DC installation into the web form.
The web form will deliver a long activation string.
Copy&paste it into an editor and save it to e.g. an USB thumb drive.
Connect the drive to the DC system, open saved text file with your activation key and copy&paste the string into the DC activation field (red arrow):
Image 1: tab "Licensing"
Make sure that you copy&paste the whole string.
Then click button "Activate".