The General tab shows the basic ERA Server information:

Server information - In this section, you can see the basic ERA Server information. Click the Change Password... button to open the Security tab of the ERA Server Options.

License information - Shows the number of ESET Security products client licenses you have purchased and the current version of the NOD32 antivirus system or ESET Endpoint Security on the server's computer. If your license has expired and you have acquired a new one, click the License manager button to open a dialog where you can browse for a new license to activate ERA.

Virus signature DB version - Shows the current version of the virus signature DB version (based on the provided update information and security products used).

Performance - Shows the Server-Client connection and general performance  information.