Limiting Launcher Domains
For release dates, end-of-support timelines, and upgrade guidance, see the Secret Server Product Lifecycle page.
You can view the latest version of the Secret Server documentation here.
You can limit the domains that a launcher connects to. If this is not set, then nothing changes—the launcher can connect to any domain. If it is set, however, Secret Server refuses to connect to any domains that are not explicitly allowed.
This setting is done via a Windows Group Policy Object (GPO) administrative template XML file (.admx). The file specifies the registry key that are changed when the GPO is edited. Download that file here: LimitLauncherDomainPolicyDefinitions.zip.
For details on using these files, see How to create and manage the Central Store for Group Policy Administrative Templates in Windows on the Microsoft site. The settings are present in both user and machine configurations in the group policy editor. If both are specified, then only the machine configuration is used (the user configuration is completely ignored). This is because the user configuration is stored in part of the registry that does not require administrator access to edit, so the machine configuration should be used in most cases.
The Group Policy valid values are just domain names, like example.com, or IP addresses, like 192.168.1.2. No port should be specified, and no scheme. A value like https://example.com is not valid, because it has https:// in the front. Ports are also invalid, so example.com:885 will not match. The correct value would simply be example.com. Wildcards are not supported, but subdomains matter, so a value of example.com will not match something.example.com.