tsgu

Documentation

Overview

The tsgu package implements the TSGU client protocol.

Introduction

The Remote Desktop Gateway Server Protocol (RDGSP Protocol)<1>  is used primarily for tunneling client to server traffic across firewalls when the Remote Desktop Gateway (RDG)<2> server is deployed in the neutral zone of a network. The primary consumer of the Terminal Services Gateway Server Protocol is the Remote Desktop Protocol: Basic Connectivity and Graphics Remoting [MS-RDPBCGR].

The RDGSP Protocol uses either Hypertext Transfer Protocol (HTTP) or remote procedure call (RPC) over HTTP as the transport for establishing the main channel. The protocol uses User Datagram Protocol (UDP) as the transport for establishing the side channel which is established only when the main channel uses HTTP.

Overview

The RDGSP Protocol is designed for remote connections from RDG clients originating on the Internet to target servers behind a firewall.<3> The protocol establishes a connection, called a tunnel (2), from an RDG client to an RDG server in the neutral zone. The RDG client uses the tunnel to establish a channel between the RDG client and the target server with the RDG server acting as a proxy. Data transfer between the RDG client and the target server occurs by using the channel. The tunnel and channel maintain active connections.

The RDG client establishes one main channel to the target server. The RDG client can establish zero or more side channels depending on the requirements of the Remote Desktop Protocol: UDP Transport Extension Protocol [MS-RDPEUDP].

The RDGSP Protocol uses one of the following transports for establishing the main channel:

* Remote Procedure Call over HTTP Protocol (RPC over HTTP)

* HTTP ( 76796f19-9e6f-48b9-8b8f-4ef9f197056b#gt_d72f1494-4917-4e9e-a9fd-b8f1b2758dcd )

The RDGSP Protocol uses the UDP transport for establishing the side channel.

In this specification, information that is common to all three transport types (RPC over HTTP, HTTP, and UDP) is provided at the beginning of each main section and details for each transport type are defined in transport-specific subsections that follow the main section. The subsections are distinguished as follows:

* Details specific to the RDGHTTP Protocol are documented in subsections that include the phrase "HTTP Transport" in the title.

* Details specific to the RDGUDP Protocol are documented in subsections that include the phrase "UDP Transport" in the title.

Index

• Variables

Variables

var (
	// import guard
	GoPackage = "tsgu"
)