What Does Agentless UI Mean?
An agentless user interface or “agentless UI” is one that does not depend on a manual process on a host machine. Agentless UI design removes a major bottleneck for remote access, and makes a user interface easier to install and use.
Techopedia Explains Agentless UI
Agentless UI may require administrators to set up a user account on a host machine that works in the background, so that the program can use remote access directly through this user account. The remote access can use typical internet protocols such as FTP and SSH.