---
title: "Manage Linux Player services"
slug: "player-services-and-modules-lin"
updated: 2025-07-11T09:47:25Z
published: 2025-07-11T09:47:25Z
canonical: "docs.grassfish.com/player-services-and-modules-lin"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.grassfish.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Manage Linux Player services

The Grassfish player software comprises various modules and services that you can configure in the player configuration groups in the Grassfish IXM One.

The following chapters explain the most important services and modules.

## Internet Receiver

The internet receiver is responsible for data transmission. When data is transmitted between server and client, the server provides the data, and the client asks for changes on the server in predefined intervals. This means that data is transmitted via an outgoing connection, so firewalls are not a problem.

The internet receiver also tells the server whether a client is online or offline.

| Installation directory | */opt/grassfish/tools/current/gfInternetReceiver* |
| --- | --- |
| Service name | *gfInternetReceiver* |
| Log directory | */opt/grassfish/data/logs/gfInternetReceiver* |

## Overseeer

Overseer is a Grassfish service that monitors the players and various modules and restarts them when necessary. The overseer also monitors the spot playback using a maximum timeout.

Additionally, this service performs regular reboots and shutdowns, and executes restarts initialized via the Grassfish IXM One.

| Installation directory | */opt/grassfish/tools/current/gfOverseer* |
| --- | --- |
| Service name | *gfOverseer* |
| Log directory | */opt/grassfish/data/logs/gfOverseer* |

<editor360-custom-block data-preprocessing="true" data-sanitizationtags="a"><p><a id="_Hlk2339584"></a>The player is the core component of the Grassfish software. It plays back all spots in the order specified in the IXM One.</p></editor360-custom-block>

## Player

The player is the core component of the Grassfish software. It plays back all spots in the order specified in the IXM One.

You can start the player manually, run the EXE file, or use the Overseer monitoring service which is the most common method. The player includes different player applications for the supported content formats.

| Installation directory | */opt/grassfish/tools/current/gfPlayer* |
| --- | --- |
| Service name | *gfPlayer* |
| Log directory | */opt/grassfish/data/logs/gfPlayer* |

## Screen Controller

The screen controller is responsible for controlling displays and observing operating times. If you use RS232 for display control, it also controls the serial connection of the screens and switching them on and off.

You must ensure that the screens are plugged into the right ports. You can change the COM assignment in the player's configuration group and assign the screen type in the Grassfish IXM One. If this connection doesn’t exist, either the screen output is deactivated or the display switches to black.

<editor360-custom-block data-preprocessing="true" data-sanitizationtags="em"><table><tbody><tr><td><p>Installation directory</p></td><td><p><em>/opt/GVClient/tools/current/gfScreenController</em></p></td></tr><tr><td><p>Service name</p></td><td><p><em>gfScreenController</em></p></td></tr><tr><td><p>Log directory</p></td><td><p><em>/opt/</em><em>GVClient/</em><em>data/logs/gfScreenController</em></p></td></tr></tbody></table></editor360-custom-block>

## Updater

This service is responsible for updating the software. The updates are provided via the Grassfish Server. The Updater downloads the updates and stores them at *opt/GVClient/data/updates/*. Once the update has been successfully completed, it deletes the files.

| Installation directory | */opt/grassfish/tools/current/gfUpdater* |
| --- | --- |
| Service name | *gfUpdater* |
| Log directory | */opt/grassfish/data/logs/gfUpdater* |

## InitBox

The main function of the Grassfish InitBox is to initialize and activate the player.

| Installation directory | */opt/grassfish/tools/current/gfInitBox* |
| --- | --- |
| Service name | *gfInitBox* |
| Log directory | */opt/grassfish/data/logs/gfInitBox* |