Questions tagged [xdmcp]
X Display Manager Control Protocol
19
questions
0
votes
0
answers
37
views
pam error in systemd-nspawn container when logging in over XDMCP
I have a debian bullseye (armhf) systemd-nspawn container on a rpi3b (archlinuxarm armv7h host).
I am trying to connect to an X session over XDMCP using lightdm.
lightdm is throwing an error
lightdm: ...
- 814
1
vote
0
answers
77
views
XDMCP locally using Unix sockets
Is there any way to start a XDMCP session, say with Xephyr in LightDM, locally through Unix Sockets instead of IP?
For performance I was wondering if, somehow, I can avoid any network stack working ...
- 61
0
votes
0
answers
141
views
blank window with XDMCP between linux and unix
I have a Digital Unix 4.0 emulation running without a display (FreeAXP). I have an X app (Open Genera 2) on this host that I would like to use.
I managed to configure both Unix and Linux and I can do ...
- 101
1
vote
0
answers
122
views
Can XDMCP be encrypted with RSA or AES? Can XDMCP be forwarded over SSL or TLS?
I know XDMCP cannot be forwarded over SSH because XDMCP uses UDP and SSH uses TCP.
Can XDMCP be forwarded over SSL or TLS instead?
XDMCP is not encrypted by default. Can AES or RSA be added to XDMCP ...
0
votes
1
answer
204
views
How to choose "remote login via xdmcp" at the login window in RHEL6/7?
In RHEL5, I can press F10 to choose "remote login via xdmcp" at the login window, how to do the same thing in RHEL6/7?
- 1
1
vote
1
answer
407
views
How to use XDMCP when server and client are behind two NAT?
The network structure is:
Server -> NAT router1 -> switch <- NAT router2 <- Client
The part I cannot solve is that, after xserver connects to 177/udp of xdm, xdm connects back to xserver, say ...
- 713
0
votes
1
answer
211
views
Is it possible to provide XDMCP service off screen?
Providing XDMCP service itself is not hard. Some configuration with XDM is enough.
But XDM has to start a X process and show something, if there is some hardware issues, it tails to start. While in ...
- 713
2
votes
1
answer
800
views
How do I avoid colour channel issues with 24-bit colour remote X11 with older Solaris?
When using CDE on older Solaris systems (2.5.x) remotely using XDMCP with TrueColor visuals, on-screen pixmaps are missing the blue channel and have the red and green channels swapped.
This means ...
- 1,147
0
votes
1
answer
1k
views
Set up xdmcp for remote desktop forcing udp v4
I am trying to set up remote desktop into a Debian stretch distribution, I set up the file /etc/gdm3/daemon.conf.
[daemon]
WaylandEnable = false
[security]
DisallowTCP = false
[xdmcp]
Enable = true
...
user275798
3
votes
2
answers
6k
views
Why do I need XDMCP to start a remote X session over SSH?
I'm trying to set up a remote desktop connection to access my desktop PC from my laptop (both running Trisquel) over wifi. I've tried VNC and it was terribly slow, so I'm looking at alternative ...
- 2,248
0
votes
1
answer
416
views
How is xdm configured for redhat 6?
I am trying to get xdmcp working on a Redhat 6 server.
I am mostly following the steps at:
http://www.yolinux.com/TUTORIALS/GDM_XDMCP.html#RHEL
In one of the steps it suggests:
Edit file:
Red Hat: /...
- 320
2
votes
1
answer
13k
views
Export Display is not working on Ubuntu Gnome (gmd3)
When I try to export the remote display I do:
In my Ubuntu 17.04:
xhost +
access control disabled, clients can connect from any host
Then I make the connection to the server:
ssh user@server
Once ...
- 89
3
votes
0
answers
604
views
XDMCP "maximum number of open sessions from your host reached" but no session is active
I'm using XDMCP to access CentOS 6 hosts from Cygwin/X. Everything works fine, but every now and then attempting to connect results in the error message:
XDMCP fatal error: Session declined maximum ...
- 131
2
votes
1
answer
6k
views
How to resolve black screen issue with Xnest/XDMCP
My environment consist of a Ubuntu 14.04 LTS VM. This is acting as the Xnest server on socket :2 and port 6002 (as seen by netstat). I'm running the Xnest as client on a Fedora 20 VM. The Ubuntu ...
- 2,695
3
votes
1
answer
4k
views
Configure XDM to accept remote logins
How can I configure XDM server to accept remote X login and works as X server, which Configuration should be done on the clients if they want to connect to this X server?
- 111
2
votes
1
answer
285
views
how to 'forward' x display data?
this is my situation: there are three computers
lab server (CentOS)
lab personal computer(window s7)
personal laptop(ubuntu)
since the lab server only allowed ip address of my desktop at the lab, I ...
- 2,289
5
votes
1
answer
11k
views
where can I find the MIT-MAGIC-COOKIE in the user side?
While digging into X Windows or X11 stuff
I found that X display uses MIT-MAGIC-COOKIE to allow client-server to exchange display data.
One thing I don't understand is that I am able to locate and ...
- 2,289
4
votes
2
answers
18k
views
How to configure fonts on a remote X connection (XDMCP vs. ssh)?
Connecting to a remote Solaris 10 system over X11 I observe inconsistent behavior regarding the used fonts. I am connecting from a Cygwin/X system.
When I connect using ssh forwarding like this
$ ...
- 55.6k
1
vote
1
answer
4k
views
Opening session via XDMCP to GDM
I have a RHEL6 server which we connect via XDMCP. If I start xdm (xdm &) it works but the login screen is the old xdm simple login and not gdm. Our RHEL5 servers connect to gdm just fine. The ...
- 2,535