HP Visualize J5000 hp workstations - hp-ux 10.20 graphics administration guide - Page 146

This option sets that value; by default it is, not a very useful value.

Page 146 highlights

You can also have the X server connect to xdm(1) or dtlogin(1X) using XDMCP. Although this is not typically useful as it doesn't allow xdm to manage the server process, it can be used to debug XDMCP implementations, and serves as a sample implementation of the server side of XDMCP. The following options control the behavior of XDMCP. -query host-name Enable XDMCP and send Query packets to the specified host. -broadcast Enable XDMCP and broadcast BroadcastQuery packets to the network. The first responding display manager will be chosen for the session. -indirect Enable XDMCP and send IndirectQuery packets to the specified host. -port Use an alternate port number for XDMCP packets. Must be specified before any -query, broadcast or -indirect options. Default port number is 177. -class Xdmcp has an additional display qualifier used in resource lookup for display-specific options. This option sets that value; by default it is "MIT-Unspecified" (not a very useful value). -cookie When testing XDM-AUTHENTICATION-1, a private key is shared between the server and the manager. This option sets the value of that private data (not that it's very private, being on the command line and all. . .). -displayID Yet another XDMCP specific value, this one allows the display manager to identify each display so that it can locate the shared key. Page 146 Graphics Administration Guide for HP-UX 10.20

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You can also have the X server connect to
xdm(1)
or
dtlogin(1X)
using
XDMCP
. Although this is not
typically useful as it doesn't allow xdm to manage the server process, it can be used to debug
XDMCP
implementations, and serves as a sample implementation of the server side of
XDMCP
. The following
options control the behavior of
XDMCP
.
-query host-name
Enable
XDMCP
and send Query packets to the specified host.
-
broadcast
Enable
XDMCP
and broadcast BroadcastQuery packets to the network. The first responding
display manager will be chosen for the session.
-indirect <host-name>
Enable
XDMCP
and send IndirectQuery packets to the specified host.
-port <port-num>
Use an alternate port number for
XDMCP
packets. Must be specified before any
-query, -
broadcast
or
-indirect
options. Default port number is 177.
-class <display-class>
Xdmcp has an additional display qualifier used in resource lookup for display-specific options.
This option sets that value; by default it is "
MIT-Unspecified
" (not a very useful value).
-
cookie <xdm-auth-bits>
When testing
XDM-AUTHENTICATION-1
, a private key is shared between the server and the
manager. This option sets the value of that private data (not that it's very private, being on the
command line and all. . .).
-displayID <display-id>
Yet another
XDMCP
specific value, this one allows the display manager to identify each display
so that it can locate the shared key.
Graphics Administration Guide for HP-UX 10.20
Page 146