Unattended Access is a feature of Secure Remote Access that allows you to connect remotely to your servers and network endpoints directly from your browser, using a lot of the well-known Admin By Request features like: inventory, auditlog, settings and sub-settings, approval flows, integrations etc.
The implementation of Unattended Access can use either a "Cloud" or an "On-premise" gateway, eliminating the need for VPN and jump servers, while still maintaining a secure and segregated setup.
Refer to Unattended Access Overview for more information.