Re: simh and xdmcp

JKB <JKB@hilbert.invalid> writes:

$ product show product tcpip
>
PRODUCT                             KIT TYPE    STATE
>
DEC VAXVMS TCPIP V5.3-18            Full LP     Installed
----------------------------------- ----------- ------------

That looks like the Compaq one.

I have tried with Xnest with the same result:
>
$ set display/create/node=192.168.10.103/transport=tcpip/server=1
$ show display
 
    Device:    WSA17:  [super]
    Node:      192.168.10.103
    Transport: TCPIP
    Server:    1
    Screen:    0

You shouldn't have to set the display. That's the job of XDM. You only
have to do that if you rlogin/telnet or similar.

I will try xdm /after/ I'm able to display clock on Xnest/Xephyr. I
don't understand why VMS answers "can't open display"...

I guess I'm confused then, because your subject mentioned xdmcp. I
though you were using XDM.

If you are doing it "by hand", then just start Xnest/Xephyr with "-ac"
to turn off access control. From the VMS side, you can execute something
like this:

$ type xephyr.com
$! Command procedure to send X11 traffic to a Xephyr
$! nested XServer, by setting the DISPLAY.
$ SET DISPLAY/CREATE/TRANSPORT=TCPIP/NODE=192.168.20.1/SERVER=1/PERMANENT
$ DEFINE/SYSTEM DECW$DISPLAY 'F$TRNLNM("DECW$DISPLAY")
$ RUN SYS$SYSTEM:DECW$STARTLOGIN.EXE
$

SERVER corresponds with what Unix calls the :1.0 part of DISPLAY
(matching the above example). Chances are you main desktop is :0.0, so
Xnest/Xephr would then be :1.0.

If you enable XDM, you don't have to run the above each time, and you'll
get a log file to check if something doesn't go right.

TCPIP> show service xdm /full

Service: XDM
                           State:     Enabled
Port:              177     Protocol:  UDP             Address:  0.0.0.0
Inactivity:          0     User_name: TCPIP$XDM       Process:  TCPIP$XDM
Limit:               1     Active:      0             Peak:       0

File:         TCPIP$SYSTEM:TCPIP$XDM_RUN.COM
Flags:        None

Socket Opts:  Rcheck Scheck
 Receive:            0     Send:               0

Log Opts:     Acpt Actv Dactv Conn Error Exit Logi Logo Mdfy Rjct TimO Addr
 File:        SYS$SPECIFIC:[TCPIP$XDM]TCPIP$XDM_RUN.LOG

Security
 Reject msg:  not defined
 Accept host: 0.0.0.0
 Accept netw: 0.0.0.0
TCPIP> exit
$ type SYS$SPECIFIC:[TCPIP$XDM]TCPIP$XDM_RUN.LOG
$ Set NoOn
$ VERIFY = F$VERIFY(F$TRNLNM("SYLOGIN_VERIFY"))
12-MAY-2025 14:49:57.83 - Waiting for DECwindows to start...
12-MAY-2025 14:50:02.83 - Waiting for DECwindows to start...
12-MAY-2025 14:50:07.83 - Waiting for DECwindows to start...
%SYSTEM-S-NORMAL, normal successful completion
%SYSTEM-S-NORMAL, normal successful completion
%SYSTEM-S-NORMAL, normal successful completion
%SYSTEM-S-NORMAL, normal successful completion
%SYSTEM-S-NORMAL, normal successful completion
%SYSTEM-S-NORMAL, normal successful completion
$

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