XDMCP Fails After Login Screen

X-Win32 has implemented the Xinerama extension starting in version 2010. Older Unix systems do not have this extension implemented and the desktop may fail when logging in to your remote host. If after logging in to your host from an … Continued

Load Balancing with XDMCP

When connecting with XDMCP, the remote hosts can be configured to display the amount of load on each system in a broadcast or multiquery screen. On most modern systems this is configured by default as seen in the status of … Continued

LIVE Error: Address in Use

LIVE sessions may fail to run if there is already a service running on the port that it is trying to connect to. See LIVE Server Ports for a list of ports First check your rxserver.log If you find the … Continued

XDMCP Session Failed for Display

When starting an Xdmcp session in X-Win32, if you get a message in X-Win32’s Messages window that says Cannot open display, then you may be having a problem with your reverse DNS lookups. Note: Xdmcp sessions may be used to … Continued

XDMCP: Manager Unwilling: Host Unwilling

The error Xdmcp: Manager unwilling: Host unwilling that is displayed in X-Win32’s Messages window when you start an Xdmcp session means that the remote X Display Manager (e.g. xdm, kdm, gdm, etc.) is not allowed to manage an Xdmcp session … Continued

Session declined: Maximum Number of Sessions Reached

Increase max number of sessions on Linux, no more sessions allowed Sometimes a host will say no more connections are allowed. XDMCP fatal error: Session declined Maximum number of open sessions from your host reached This is usually caused by … Continued

What Ports Need to be Opened for XDMCP

X-Win32 can connect to linux hosts even behind a firewall. Open up TCP port 6000-6005 (plus X-Win32’s base display number) in both directions Open up UDP port 177 to accept incomming connections from any port. If you are using Gnome … Continued

Enable XDMCP on Solaris 9 and Below

Solaris machines have XDMCP enabled by default. In case it has been disabled for some reason Log in as root Open a terminal Type “cd /usr/dt/config” Edit the Xconfig file Comment out the line Dtlogin.requestPort: 0 Save and restart the … Continued

Enable XDMCP on Solaris 10

Solaris 10’s desktop environment is JDS which is based off of GNOME. Log in as root Open a terminal Type gdmsetup (a dialog box will appear) Click on the XDMCP tab Check the Enable XDMCP box Press Close

Enable XDMCP By Editing Files

On certain linux systems you must manually edit the configuration files. It is recommended to use an automated system such as yast2 or gdmsetup if available. In this example, we will edit the Suse Linux system Log in as root … Continued

Enable XDMCP Using Yast2

SuSE Linux and many other distributions which use KDE as the default desktop often have the yast tools installed on the operating system Open a terminal as root Launch: yast2 Click on: System > /etc/sysconfig Editor Desktop > Display manager … Continued

Enable XDMCP using gdmsetup

On many versions of Red Hat Linux and other versions of Unix which have the GNOME desktop environment, enabling XDMCP only takes a few clicks. RHEL 4 and below Log in as root Open a terminal Type gdmsetup (a dialog … Continued

How to Enable XDMCP on Unix

On most Unix/Linux distributions XDMCP is disabled by default. In order to enable your server to accept XDMCP connections you need to modify a few configuration files. The configuration files are located in different directories depending on the distribution. NOTE: … Continued