How do I set up proxy authentication for Security Gateway?

To set up proxy authentication for a Security Gateway:

Stop the Security Gateway.

Specify the proxy-related parameters in the [http.client] section of the custom.properties file and in particular those parameters that have to do with authentication such as:

[http.client]
proxy-server=127.0.0.1
proxy-port=8080
# http or https
proxy-scheme=http
# basic authentication credentials
proxy-user=username
proxy-password=password

Restart Security Gateway.

Note:
proxy-server and proxy-port are the only proxy authentication parameters that can be used in the command line as well: PROXY=<proxy server>:<proxy port>.