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StepCommand
1Start Xephyr.

$ Xephyr :20 -ac -screen 950x540

Parameters:

  • :20 - the DISPLAY variable is set to :20
  • -ac - no access control to the X-Server
  • -screen - the dimensions of the X-display

For more information refer to the man-pages of your Linux system.

2Start an xterm inside Xephyr and create a SSH connection to HP-UX.

$ xterm -bg black -fg white -display :20  \
   -e ssh -Yf <user@hp-ux-ip-address> /usr/dt/bin/Xsession

3Wait for the password prompt inside the xterm window and enter the password for the HP-UX user.
4An X-Session for the user will open in the Xephyr window.

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StepDescription
1Create a system-specific copy of the Xconfig file# cp /usr/dt/config/Xconfig /etc/dt/config/Xconfig
2Enable XDMCP.

Edit the file:

# vi etc/dt/config/Xconfig

Locate the following line and insert a comment character, '#', at the beginning of the line.
        Dtlogin.requestPort: 0

Save the file.

3Restart the X-server.

# /etc/init.d/dtlogin restart

(If there is no dtlogin file in /etc/init.d, you first have to run
        /usr/dt/bin/dtconfig -e )

Font Considerations

Often, the system running the X-Server does not have all the necessary fonts to run HP-UX X-applications. In such cases, the graphical applications will not start. You can check if this is the case by monitoring the log file /usr/dt/Xerrors on the HP-UX guest system.

If fonts are missing, there are two ways to overcome the problem:

  • Configure

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  • and activate the fontserver on HP-UX and include it in the fontpath on the system running the X-Server.
  • Copy the missing fonts to the system running the X-Server and include them in the local fontpath.
Warning

Configuring a fontserver is preferable to copying the fonts. However, so far tests between X-Servers and the fontserver running on HP-UX were unsucessfull. Therefore, even though the description below is correct, it is unlikely to work until the cause of the problem has been identified.

Configuring HP-UX as a Fontserver

To configure and activate the fontserver on HP-UX, perform the following steps:


StepCommand
1Include the CDE fonts in the fontserver's catalogue.

Use a text editor to open the file

/etc/X11/fs/config

If not already there, append

,/usr/dt/config/xfonts/C

to the end of the line beginning with

catalogue =

2Enable the automatic start of the fontserver at boot.

Use a text editor to open the file

/etc/rc.config.d/xfs

If not already set, set the following variable to 1:

RUN_X_FONT_SERVER=1

3(Re)start the fontserver.

# /sbin/init.d/xfs stop

# /sbin/init.d/xfs start

4Test if the fontserver responds to queries.

Enter the following command on the system running the X-Server:

$ fslsfonts -server 192.168.2.88:7000 -fn '-dt*' | head

This should produce output similar to the following:

Code Block
languagetext
themeEclipse
-dt-application-bold-i-normal-sans-10-100-75-75-p-60-hp-roman8
-dt-application-bold-i-normal-sans-10-100-75-75-p-60-iso8859-1


(warning) By default, the fontserver runs on port 7000. This port must be allowed through any intermediate firewalls.

Once the fontserver responds to queries, it should be possible to add it to the fontpath of the X-Server (see below in the operating system specific sections).

Copying Missing Fonts to a Linux X-Server

To add HP-UX fonts to the Linux system running the X-Server perform the following steps:


StepCommand
1Create a directory to store the additional fonts. 

For example:

# mkdir /usr/share/fonts/hp-fonts1

# mkdir /usr/share/fonts/hp-fonts2

2Copy the missing fonts from the HP-UX guest to the new directory. 

Example using the most likely missing fonts:

# cd /usr/share/fonts/hp-fonts1

# scp <hp-ux ip>:/usr/lib/X11/fonts/hp_roman8/75dpi/* .

# cd /usr/share/fonts/hp-fonts2

# scp <hp-ux-ip>:/usr/dt/config/xfonts/C/* .

3Create an updated fonts.dir file.

For each newly created fonts directory execute the following command:

# cd <directory containing the fonts>

# mkfontdir

4Check if fontpath can be added to X-Server.

Assuming you run a graphical user session on Linux, use the following command to add a new font directory to your server (until next restart):

# xset fp+ <directory containing the fonts>

To display the fontpath of the currently used X-Server, use the following command:

# xset q

5Refresh the font cache.

Run the following command to refresh the font cache:

# fc-cache -fv

6Verify whether your X-Server finds the fonts.

Assuming you run a graphical user session on Linux, use the following command to query the X-Server for known fonts (using HP-UX fontnames as an example):

# xlsfonts -fn '-dt*' | head

Connect to HP-UX from Linux

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This section shows how to use Xephyr to connect to a HP-UX guest system using XDMCP. 

Perform the following steps to start an Xsession via XDMCP.


StepCommand
1Start Xephyr.

Use local font directories:

$ Xephyr :20 -ac -screen 950x540 -query <hp-ux-guest-ip> \
  -fp <new-font-directory1>, <new-font-directory2>,...

Use fontserver:

$ Xephyr :20 -ac -screen 950x540 -query <hp-ux-guest-ip> \
  -fp tcp/<hp-ux-guest-ip>:7000

Parameters:

  • :20 - the DISPLAY variable is set to :20
  • -ac - no access control to the X-Server
  • -screen - the dimensions of the X-display
  • -query - requests an XDMCP session from the HP-UX guest
  • -fp - add the local fontpath for HP fonts or a fontserver 

For more information refer to the man-pages of your Linux system.

2A CDE login window will appear in the Xephyr window.

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Connect to HP-UX from Windows

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This section shows how to use Xming to connect to a HP-UX guest system using XDMCP. 

(info) For this setup no fontserver was configured and no fonts were copied.


StepDescription
1

Start XLaunch from the Xming section in the Start menu.

Make sure that Xming is not already running before you start

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2
  • Select the option One Window. This is one of the options supporting XDMCP.
  • Press Next to continue

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3
  • Select XDMCP for the session.
  • Press Next to continue.

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4
  • Enter the IP address or hostname of the virtual SPARC system.
  • Press Next to continue.

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5Finish the setup by continuing through the remainder of the sections (for this example all the defaults were accepted) and press Finish on the last configuration screen of XLaunch.
6The HP-UX graphical login screen is displayed and after logging in, you will see the graphical desktop.

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