Using an HTTP proxy for DTI service requests

An HTTP proxy server can act as an intermediary between an appliance and the DTI network. The following table describes the default behavior, and the behavior after an HTTP proxy is configured on the appliance and enabled for DTI service requests.

Appliance	Default behavior	HTTP proxy behavior
Standalone Appliance	The appliance connects directly to the DTI network.	The appliance connects to the DTI network through the HTTP proxy.
Central Management System Appliance	The Central Management System appliance connects directly to the DTI network.	The Central Management System appliance connects to the DTI network through the HTTP proxy.
Managed Appliance	The appliance communicates with the DTI network through the Central Management System appliance.	Single-port communication with the Central Management System appliance (the default, in which both management and DTI network traffic use SSH port 22)—The appliance connects to the DTI network through the HTTP proxy. Dual-port communication with the Central Management System appliance (in which management traffic uses SSH port 22 and DTI network traffic uses HTTP port 443)—The appliance either connects directly to the DTI network through the HTTP proxy, or through the managing Central Management System appliance to the HTTP proxy.

Appliance

Default behavior

HTTP proxy behavior

Standalone Appliance

The appliance connects directly to the DTI network.

The appliance connects to the DTI network through the HTTP proxy.

Central Management System Appliance

The Central Management System appliance connects directly to the DTI network.

The Central Management System appliance connects to the DTI network through the HTTP proxy.

Managed Appliance

The appliance communicates with the DTI network through the Central Management System appliance.

Single-port communication with the Central Management System appliance (the default, in which both management and DTI network traffic use SSH port 22)—The appliance connects to the DTI network through the HTTP proxy.

Dual-port communication with the Central Management System appliance (in which management traffic uses SSH port 22 and DTI network traffic uses HTTP port 443)—The appliance either connects directly to the DTI network through the HTTP proxy, or through the managing Central Management System appliance to the HTTP proxy.

Important

If an HTTP proxy server is configured and enabled on a managed appliance that uses single-port communication with the Central Management System appliance, the managed appliance will automatically fail over to the proxy server for all DTI services if the Central Management System appliance becomes unavailable.

For information about configuring an HTTP proxy server on the Central Management System appliance, see Configuring an HTTP proxy server . For information about configuring managed appliances to use an HTTP proxy server for DTI services, see the System Administration Guide or Administration Guide for the managed appliance.