If your Metadefender Core server is deployed in an offline environment without connectivity to the Internet, you can deploy engine definition updates through the Update by File Upload section of the Engines Configuration page.
To configure the Engines section and apply offline updates, click the Configuration tab and then click Engines .
Scroll down to the Update by File Upload section.
You can download these update packages from the OPSWAT Portal or with the Automatic Definition Update Download Utility. For more information on how to download these updates, please visit the OPSWAT Portal, click Downloads , and then click Download Offline Definition Updates .