XDMCP Problems - Possible fix, please try
Andrew DeFaria
ADeFaria@Salira.com
Tue Jan 6 02:31:00 GMT 2004
Harold L Hunt II wrote:
> Andrew DeFaria wrote:
>
>>> I never thought of forcing people to try to make a connection on the
>>> actual box itself.
>>>
>>> I ran the same command on my linux box and confirmed that it does work.
>>>
>>> I then edited (for my display manager and distribution, this will be
>>> different for you) /etc/kde3/kdm/kdmrc, changed the following:
>>>
>>> [XDMCP]
>>> Enable=true
>>>
>>> to
>>>
>>> [XDMCP]
>>> Enable=false
>>>
>>> Then I restarted kdm ('/etc/init.d/kdm restart' for my dist), and
>>> ran 'X -query %hostname% :1' again and waited about five minutes.
>>> Before five minutes, I saw nothing: nothing special in the log files
>>> and no login screen on Ctrl-Alt-F8. Then, after about five minutes,
>>> I saw that the /var/log/XFree86.1.log file (and the console from
>>> which I started X) both said:
>>>
>>> XDM: too many retransmissions
>>
>>
>>
>> Well you see that's sorta the problem. In my distro (SuSE 8.2) it's
>> at /opt/kde/share/config/kdm/kdmrc but the problem is that it already
>> says true! In mine is says:
>>
>> [Xdmcp]
>> Enable=true
>
> kdm != xdm
>
> kdm has a distinct configuration file from xdm's configuration file.
Yes but there appears to be some intertwining on SuSE at least.
> xdm.config lives in either /etc/X11/xdm/xdm.config or
> /usr/X11R6/lib/X11/xdm/xdm-config, where you will see something like
> the following:
>
> ! SECURITY: do not listen for XDMCP or Chooser requests
> ! Comment out this line if you want to manage X terminals with xdm
> DisplayManager.requestPort: 0
>
>
> So, you have to change that to:
>
> ! SECURITY: do not listen for XDMCP or Chooser requests
> ! Comment out this line if you want to manage X terminals with xdm
> ! DisplayManager.requestPort: 0
>
> Then restart xdm and it should work.
sonslinux:/home/defaria # grep requestPort /etc/X11/xdm/xdm-config
!DisplayManager.requestPort: 0
sonslinux:/home/defaria # grep requestPort
/usr/X11R6/lib/X11/xdm/xdm-config
!DisplayManager.requestPort: 0
sonslinux:/home/defaria #
Actually:
sonslinux:/home/defaria # ll /usr/X11R6/lib/X11/xdm
lrwxrwxrwx 1 root root 23 2003-12-12 15:29
/usr/X11R6/lib/X11/xdm -> ../../../../etc/X11/xdm
And DisplayManager.requestPort had been commented out a long time ago
(and xdm/kdm definitely has been restarted since commenting this out).
--
The careful application of terror is also a form of communication.
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