Pre requisites

1. Java Runtime Environment
The plugin runs an Oculix JAR file, so it is necessary to have Java installed and accessible in the system PATH. Java 17 or higher is recommended.

2. Graphical environment
The plugin uses mss to take screenshots, so it requires a running X11 server (graphical environment). If running in a headless environment, a virtual X server such as Xvfb can be used.

3. The agent runs in process mode, and the session cannot be locked or closed.
Once launched by the Pandora FMS Agent, it must run in process mode; if it runs in service mode, it will not function properly. Additionally, it will not be possible to lock the desktop session, so it is recommended to use it on virtual machines.

3. Write permissions
The plugin needs write permissions in the artifacts directory (--artifacts) to store screenshots, baseline images, and diffs.

4. Tentacle (optional)
If the tentacle transfer mode is used, the tentacle_client binary must be installed and accessible on the system.