If you use Nginx as a proxy server between a device with Kaspersky Endpoint Agent installed and Kaspersky Sandbox server, configure the client_max_body_size setting. The value of the client_max_body_size setting must be equal to the maximum size of the object sent by Kaspersky Endpoint Agent to Kaspersky Sandbox for processing. Otherwise, Nginx will not send objects whose size exceeds the specified value. The default value is 1 MB.
In the main Kaspersky Security Center Web Console window select Devices → Policies and profiles.
Select the policy you want to configure.
In the <Policy name> window that opens, select the Application settings tab.
In the Kaspersky Sandbox integration section select the Connection settings subsection.
Select the Enable Kaspersky Sandbox integration check box if it is unchecked.
In the Kaspersky Sandbox integration settings group of settings, enable or disable the Connect using the proxy server if specified in the general settings option.
This option is disabled by default. The application only connects to Kaspersky Sandbox server directly, and does not use the general proxy server connection settings. You can enable this option if you want the application to use the general proxy server connection settings when connecting to the Kaspersky Sandbox server.
In the List of Kaspersky Sandbox servers group of settings, click Add.
In the right part of the window, enter the IP address or fully qualified domain name of the Kaspersky Sandbox server and the port used for connecting to the server.
Click OK.
The added server will be listed in the server table.
Repeat the steps to add each Kaspersky Sandbox server to the list.
If you configure the settings in the policy properties window, in the upper right corner of the group of settings, change the switch from Undefined to Enforce.
Click OK.
Click the Save button.
Kaspersky Sandbox servers have been added to the Kaspersky Endpoint Agent list.