USP Server

USP Server is the central component of the UDMG Secure Proxy (USP) platform. It receives inbound connections from external clients and forwards them to internal targets according to the configured connection model (Session Break or Direct Mode).

USP Server can also expose SSH tunnels to receive traffic relayed by USP Clients when network restrictions prevent direct connectivity.

Configuration Overview

USP Server uses a small set of required settings to run. Some values have no defaults, so you must define them before running the service.

USP Server reads configuration from two sources:

• Configuration File
• Environment Variables

info

Any configuration value defined via an environment variable overrides the corresponding value in the HCL file.

Configuration File

You can specify the path to the configuration file using one of the following options (in order of precedence):

1. Environment Variable: USP_SERVER_CONFIG
2. Command Line Flag: -c or --config
3. Default File: usp-server.hcl (lowest precedence)

Commands Usage

To view available commands and flags, run:

usp-server -h

To run a command:

usp-server [command]

Available Commands

Command	Description
usp-server [command] --help	Show help for a command
completion	Generate shell autocompletion
help	Display help about commands
start	Start the USP Server

Available Flags

-h, --help      help for usp-server
-v, --version   version for usp-server

Start USP Server

To start the USP Server:

usp-server start [flags]

Flags:

• -c, --config string: Path to the configuration file (default: usp-server.hcl)
• -h, --help: Show help for the start command