# Configuring GDM

This chapter describes how to configure GDM in the GNOME Desktop.

## Introduction to GDM

To start a GNOME Desktop session, users must log in to authenticate their identity. The login screen provides gateway to the desktop environment for the user. The GNOME Display Manager (GDM) application controls the login screen.

GDM also enables you to log in to another session without closing the current session.

## Configuring GDM

To configure GDM, use the GDM Configurator application. To open GDM Configurator, choose Applications System Tools GDM Configurator.

You can configure GDM in the following functional areas:

- General

- Standard greeter

- Graphical greeter

- Security

- XDMCP

### General Settings

Use the General tabbed section to set general GDM preferences.

lists the general GDM settings that you can configure.

#### General GDM Settings

Element | Description
--- | ---
Local | Information to be provided in a future release.
Remote | Information to be provided in a future release.
Always use 24 hour clock format | Information to be provided in a future release.
Login a user automatically on first bootup | Information to be provided in a future release.
Automatic login username | Information to be provided in a future release.
Login a user automatically after a specified number of seconds | Information to be provided in a future release.
Timed login username | Information to be provided in a future release.
Seconds before login | Information to be provided in a future release.

### Standard Greeter Settings

Use the Standard greeter tabbed section to set preferences for the standard greeter.

lists the standard greeter settings that you can configure.

#### Standard Greeter Settings

Element | Description
--- | ---
Logo | Information to be provided in a future release.
Welcome string | Information to be provided in a future release.
Show choosable user images (face browser) | Information to be provided in a future release.
No background | Information to be provided in a future release.
Image |
Color |
Scale background image to fit | Information to be provided in a future release.
Only color on remote displays | Information to be provided in a future release.
Background color | Information to be provided in a future release.

### Graphical Greeter Settings

Use the Graphical greeter tabbed section to set preferences for the graphical greeter.

lists the graphical greeter settings that you can configure.

#### Graphical Greeter Settings

Element | Description
--- | ---
Greeter list | Information to be provided in a future release.
Install new theme | Information to be provided in a future release.

### Security Settings

Use the Security tabbed section to set security preferences for GDM.

lists the security settings that you can configure.

#### Security Settings

Element | Description
--- | ---
Allow root to login with GDM | Information to be provided in a future release.
Allow root to login remotely with GDM | Information to be provided in a future release.
Allow remote timed logins | Information to be provided in a future release.
Show system menu | Information to be provided in a future release.
Allow configuration from the login screen | Information to be provided in a future release.
Retry delay (seconds) | Information to be provided in a future release.

### XDMCP Settings

Use the XDMCP tabbed section to set preferences for XDMCP.

lists the XDMCP settings that you can configure.

#### XDMCP Settings

Element | Description
--- | ---
Enable XDMCP | Information to be provided in a future release.
Honour indirect requests | Information to be provided in a future release.
Listen on UDP port | Information to be provided in a future release.
Maximum pending requests | Information to be provided in a future release.
Max pending indirect requests | Information to be provided in a future release.
Maximum remote sessions | Information to be provided in a future release.
Maximum wait time | Information to be provided in a future release.
Maximum indirect wait time | Information to be provided in a future release.
Displays per host | Information to be provided in a future release.
Ping interval (minutes) | Information to be provided in a future release.

## Logging in to a New Session

To log in to a new session, choose Applications System Tools New login. A login screen is displayed. Enter your username and password to log in.