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Old 02-02-2008, 11:06 AM
Da Rock
 
Default SOLVED: Xdmxp login to remote machine via gdm

I feel a bit of a goose but I got it worked out- strangely enough it was while working on another problem I have with X.

For reference, I was able to obtain a chooser under the gdmsetup. Under Security->Configure X Server one can choose whether to use the greeter or the chooser to be displayed for login. Unfortunately I didn't see a way to add a new server type, and so even if you add new consoles if you select the chooser then it will be displayed on all like servers. This means that to not lock yourself out of your own system you need to add a new server type manually to the custom.conf, and while there you can set chooser to true under the server type, then add new server to the servers list using the "remote" server type rather than standard.

I apologise if you already know this, but I thought I might do this any newbies who come along. Also, if someone wants to make a how-to then email me direct for further clarity (I do one myself, but my time does not allow).

One thing that did fool me was the conf described the placement of the chooser=true under the greeter section. This needs to be under the specific server. It also didn't help that I was looking for something similar to kdm, where you have a login screen but you can select remote login from there. GDM doesn't have that- they're separate items: one or the other.

If you do use kdm, and the remote system uses gnome I found there was some trouble with that aspect too- or maybe it was just me. Unfortunately I can't check that now, but anyway watch for that too.

Cheers and thanks again for the help and feedback provided, it was very useful.


----------------------------------------
> From: rock_on_the_web@hotmail.com
> To: fedora-list@redhat.com
> Date: Tue, 22 Jan 2008 12:41:57 +0000
> Subject: RE: Xdmxp login to remote machine via gdm
>
>
> Yeah I checked out all those again- I read them up when I first started getting right into X and remote terminals a while ago. No further help there either.
>
> This one has got me beat! Unfortunately I've run out of time to continue this bandaid solution, and I'll just have to get another mc up and running again. I will however be chasing this up on another mc in my quest to setup my network to a productive status. Maybe I'll have more success there....
>
> Any further light on this subject will be welcome. Thanks all.
>
>
> ----------------------------------------
>> Date: Mon, 21 Jan 2008 08:01:02 +1000
>> From: brianchad@westnet.com.au
>> To: fedora-list@redhat.com
>> Subject: Re: Xdmxp login to remote machine via gdm
>>
>> Da Rock wrote:
>>> I rebooted the whole machine. This is only a workstation so its no
>>> biggy. This problem really has got me beat- if you're running the same
>>> version then why is it working for you and not me? Unless its a
>>> residual because I uninstalled the later version? Weird....
>>>
>>>
>>>
>>> ------------------------------------------------------------------------
>>>> Date: Sun, 20 Jan 2008 19:06:05 +1000
>>>> From: brianchad@westnet.com.au
>>>> To: fedora-list@redhat.com
>>>> Subject: Re: Xdmxp login to remote machine via gdm
>>>>
>>>> Da Rock wrote:
>>>>> Surprisingly enough this didn't work. From what the docs say this is
>>>>> not necessary for connection to a remote server. I've just gone
>>>>> through the docs again for gdm (on the gnome site this time), and
>>>>> tried setting SystemMenu=true under [greeter] but that didn't work
>>>>> either. Nothing seems to change this gdm- am I changing the right
>>> one?
>>>>> /etc/gdm/custom.conf?
>>>>>
>>>>> We now know that I have the right gdm version to permit this, I'm
>>>>> supposedly adjusting the right conf file- what am I missing here?
>>>>>
>>>>> KDM offers a chooser, but the system spits the dummy for some reason
>>>>> when I connect and won't work properly.
>>>>>
>>>>> I've opened the xdmcp ports (177) on the firewall for both tcp and
>>> udp
>>>>> as well.
>>>>>
>>>>> I've never had this much trouble setting up this on any other mc.
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>> ------------------------------------------------------------------------
>>>>>
>>>>>> Date: Sun, 20 Jan 2008 17:08:04 +1000
>>>>>> From: brianchad@westnet.com.au
>>>>>> To: fedora-list@redhat.com
>>>>>> Subject: Re: Xdmxp login to remote machine via gdm
>>>>>>
>>>>>> Da Rock wrote:
>>>>>>> Ok. So I've now got the right gdm - the version info mentions the
>>>>>>> remote x explicitly as fixed. I believe my problem is now in the
>>>>>>> custom.conf.
>>>>>>>
>>>>>>> I've edited the /etc/gdm/custom.conf and added the following
>>> lines:
>>>>>>> [chooser]
>>>>>>> Chooser=/usr/libexec/gdmchooser
>>>>>>>
>>>>>>> [greeter]
>>>>>>> ChooserButton=true
>>>>>>>
>>>>>>>
>>>>>>> None of this has worked. I must be cursed here or something...
>>>>>>>
>>>>>>> So I tried setting ChooserButton to enable- NG.
>>>>>>>
>>>>>>> I ran gdmchooser from the commandline and it worked so its not
>>> that.
>>>>>>> What have I missed?
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>
>>> ------------------------------------------------------------------------
>>>>>>> From: rock_on_the_web@hotmail.com
>>>>>>> To: fedora-list@redhat.com
>>>>>>> Date: Sun, 20 Jan 2008 06:02:24 +0000
>>>>>>> Subject: RE: Xdmxp login to remote machine via gdm
>>>>>>>
>>>>>>> Just to address the last post on this subject - Where my problem
>>>>>>> lies is not in allowing others accessing this computer by remote x
>>>>>>> but this computer accessing others by remote. A search on google
>>>>>>> produced several docs stating that only certain gdm versions will
>>>>>>> allow you to choose to access a remote x server.
>>>>>>>
>>>>>>> I checked out ltsp but it seems more based on allowing remote
>>>>>>> access in this computer then setting up this computer to access
>>>>>>> others (I could be wrong though, but I can't see where it is). I
>>>>>>> just updated the software and went from gdm-2.20.1-5 to
>>>>>>> gdm-2.20.2-2. No good. I've edited the custom file but no change.
>>>>>>> I'll just uninstall this version and try and locate the version
>>>>>>> you have mentioned to me- maybe its the key to it all...
>>>>>>>
>>>>>>> Thanks all.
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>
>>> ------------------------------------------------------------------------
>>>>>>>
>>>>>>>> Date: Sat, 19 Jan 2008 19:32:32 +1000
>>>>>>>> From: brianchad@westnet.com.au
>>>>>>>> To: fedora-list@redhat.com
>>>>>>>> Subject: Re: Xdmxp login to remote machine via gdm
>>>>>>>>
>>>>>>>> Frank Cox wrote:
>>>>>>>>> On Sat, 19 Jan 2008 00:40:29 +0000
>>>>>>>>> Da Rock wrote:
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>> Guys, I know that the current version of gdm on fedora has a
>>>>>>> serious lack of support for remote xdmcp login, but I need a
>>>>>>> workaround! I want to login from a crappy machine using XP to
>>>>>>> relieve a bottleneck of systems using VMWare and a fc8 appliance.
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>> I have found that sticking with gdm-2.20.1-7.fc8 works well
>>>>>>> with my LTSP
>>>>>>>>> setup. You can download that from any of the mirrors.
>>>>>>>>>
>>>>>>>>>
>>>>>>>> What serious lack of support? XDMCP works fine here ...
>>>>>>>>
>>>>>>>> System> Administration> Login Window> Remote> Style> Same as
>>>>>>> Local.
>>>>>>>>
>>>>>>>> You just have to restart X
>>>>>>>>
>>>>>>>> no probs with it
>>>>>>>>
>>>>>>>> --
>>>>>>>> fedora-list mailing list
>>>>>>>> fedora-list@redhat.com
>>>>>>>> To unsubscribe:
>>> https://www.redhat.com/mailman/listinfo/fedora-list
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>
>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>
>>>>>> edit /etc/gdm/custom.conf
>>>>>>
>>>>>> add this section
>>>>>>
>>>>>> [xdmcp]
>>>>>>
>>>>>> Enable=true
>>>>>>
>>>>>>
>>>>>> then restart X
>>>>>>
>>>>>> --
>>>>>> fedora-list mailing list
>>>>>> fedora-list@redhat.com
>>>>>> To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>> have you restarted X? ... you have to get right out of X and restart
>>> the
>>>> server. I do this by opening a terminal, typing as root telinit 3
>>>>
>>>> then log in to the console and type telinit 5.
>>>>
>>>> --
>>>> fedora-list mailing list
>>>> fedora-list@redhat.com
>>>> To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list
>>>
>> here is a later version
>>
>> http://www.tldp.org/HOWTO/XDMCP-HOWTO/index.html
>>
>> --
>> fedora-list mailing list
>> fedora-list@redhat.com
>> To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list
>
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