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Overview
The Charon-SSP Manager can set up an X11 login session using Xephyr and the XDMCP protocol.
Xephyr is a nested X-server that can run within a normal Linux or Baremetal GUI-based user session. It supports the Solaris GUI (Java Desktop, Openwin, CDE, and Gnome) and can provide graphics 3D acceleration based on the OpenGL 1.4 specification.
Running an X-server to access the graphical Solaris interface, requires a network configuration that allows a TCP/IP connection between the system running the X-server and the Solaris Guest operating system (Stromasys recommends that both systems be in the same subnet).
If the X-server runs on a remote system, the remote system must have a working TCP/IP connection to the guest system running in the Charon-SSP instance.
The screenshot below shows an X-session from Charon-SSP Manager to a guest running Oracle Solaris 10.
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The graphical performance depends on many parameters, for example, the performance of the host system, the emulated system, and the network.
One important requirement is that the round-trip time of the network connection between display device and emulated Solaris system running on the AWS instance should be less or equal to 20ms.
For every use case, a test is required to evaluate the suitability for the specific customer environment.
Prerequisites
Installing Xephyr on the Remote Linux Host
If it has not happened yet, Xephyr must be installed on the remote Linux system where the Charon-SSP Manager will be used to start the X-server.
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# yum install xorg-x11-server-Xephyr
Firewall Considerations
The Xephyr nested X-server listens for connections on port range 6001-6100 depending on the X11 Server configuration in Charon-SSP Manager. The configured ports must be allowed if a firewall (e.g. iptables on Linux) is used. For a quick assessment, in case the X-server does not show the dtlogin screen, the following commands on the Linux system running Xephyr can be used to turn off the firewall temporarily (depending on what firewall is being used).
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Enabling XDMCP on Solaris 2.5 to Solaris 9
Use the following instructions to enable remote login over XDMCP up to Solaris 9:
Edit the file /usr/dt/config/Xconfig.
#vi/usr/dt/config/XconfigLocate the line
Dtlogin.requestPort: 0and insert a comment character, '#', at the beginning of the line.Save the configuration file and restart the X-server (if there is no dtlogin file in /etc/init.d, you have to run
/usr/dt/bin/dtconfig -efirst):# /etc/init.d/dtlogin restart
Enabling XDMCP on Solaris 10
Use the following commands to enable remote login over XDMCP on Solaris 10:
- Allow access to XDMCP over the network:
# svccfg -s cde-login setprop 'dtlogin/args=""' Restart CDE.
#svcadm restart cde-login
Configuring and Starting the X11 Server in Charon-SSP Manager
Basic Configuration Steps and Start
Once XDMCP has been enabled on the guest, use the following basic instructions to start the X-server display. The parameters are described in detail in the next section. You can add multiple profiles with different sets of parameters to the configuration of the Charon-SSP Manager.
Basic steps for configuring and starting the X11 server | ||
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| Step | Description | |
| 1 | Open the X11 server Configuration window from Charon-SSP Manager (menu path Tools > X11 Server). Here you can start/stop already configured X11 servers and add, modify or delete them. To add a new server, click on Add. This opens the Add X11 Profile window as shown here: |
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| 2 | Configure the X11 server by completing the fields:
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| 3 | Click on Start to start the selected X-server. | |
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