Bug 2655 - gdm fails to honor XDMCP requests!!
gdm fails to honor XDMCP requests!!
Status: CLOSED DUPLICATE of bug 2614
Product: Red Hat Linux
Classification: Retired
Component: gdm (Show other bugs)
All Linux
medium Severity high
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Assigned To: David Mason
Depends On:
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Reported: 1999-05-08 09:32 EDT by Chris Evans
Modified: 2015-06-04 00:47 EDT (History)
4 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
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Last Closed: 1999-08-31 09:37:05 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Chris Evans 1999-05-08 09:32:51 EDT

Install RH6.0, choose to "launch X by default" during the

When you boot the new system, GNOME pops up with a login
dialog. So far so good.

Now switch to a virtual console and type

startx -- -query :1

This command starts X but FAILS to get to a login screen!
This is quite serious :-)

Note, if I change /etc/X11/prefdm so it points to "xdm", the
above command works fine.

Another note: when using gdm, traffic sent to the XDMCP port
queues up and is never read. The port should either be
fixed, or disabled- if it isn't used it's a security concern
Comment 1 Michael K. Johnson 1999-05-10 18:47:59 EDT
The workaround for now is to enable debugging by changing
Enable=0 to Enable=1 in the [debug] section of /etc/X11/gdm/gdm.conf.
This is most certainly a workaround and not a bugfix...

The workaround does not fix the fact that it listens when not
configured to do xdmcp.

------- Additional Comments From   08/24/99 10:31 -------
A little extra info:  GDM will respond to XDMCP requests when they
are DIRECT or QUERY requests (sent to the specified host).   It fails
when the requests are of type BROADCAST.
Comment 2 Preston Brown 1999-08-31 09:37:59 EDT
*** This bug has been marked as a duplicate of 2614 ***

------- Additional Comments From   10/20/99 17:24 -------
Contrary to the orginal comments from Redhat, my workstation is not
responding to 'DIRECT or QUERY requests'.  I just picked up 6.1 last
night hoping that this (and other problems) were resolved and it is
not.  I have not tried the listed workaround.

Comment 3 openshift-github-bot 2015-06-04 00:47:56 EDT
Commit pushed to master at https://github.com/openshift/origin

Fix issue#2655; bz1225410; rebase openshift-sdn Godeps

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