Re: vnc and inetd
- From: Chris Kottaridis <chriskot@xxxxxxxxxxxxx>
- Date: Sat, 25 Jul 2009 05:20:15 -0600
Well, I figured it out. One of the steps of the xdmvnc.html page was to
edit /etc/X11/gdm/gdm.conf if your system runs gdm. But, I couldn't find
that file anywhere so I just changed the KDM file which I could find.
Doing a ps shows I am running gdm-binary and searching the man pages
shows there is a gdmsetup gui based command to configure gdm. So, I ran
it and enabled "Remote". I rebooted and now I get the login window when
I vnc view my host. Which is what I was trying to accomplish.
I tried to strace gdmsetup to see if it would open the gdm.conf file,
but it seems to make a socket conenction to some daemon that actually
manages the file. I ran find over / looking for a file named gdm.conf
and it came back with no matches. So, I still don't know where this file
is, but I seem to have a way to get it enabled so I am off to the races.
It also mentions to modify the xfs configure file, but I don't seem to
be running a font server, at least there is no /etc/init.d/xfs script to
start the thing up. So far I haven't noticed it being a problem, so
maybe it isn't absolutely required. I'll keep poking around though.
Thanks
Chris
On Sat, 2009-07-25 at 00:32 -0600, Chris Kottaridis wrote:
I am trying to get vnc working via inetd on my Fedora Core 8 machine. I
want to be able to use a vnc viewer to open up a window and get a login
window, so I can be logged into the same machine twice under different
usernames.
I followed the man page for Xvnc:
=====================================================
In the nowait mode, Xvnc uses its standard input and output directly as
the connection to a viewer. It never has a listening socket, so cannot
accept further connections from viewers (it can however connect out to
listening viewers by use of the vncconfig program). Further viewer
connections to the same TCP port result in inetd spawning off a new
Xvnc to deal with each connection. When the connection to the viewer
dies, the Xvnc and any associated X clients die. This behaviour is
most useful when combined with the XDMCP options -query and -once. An
typical example in inetd.conf might be (all on one line):
5950 stream tcp nowait nobody /usr/local/bin/Xvnc Xvnc -inetd
-query localhost -once securitytypes=none
In this example a viewer connection to :50 will result in a new Xvnc
for that connection which should display the standard XDM login screen
on that machine. Because the user needs to login via XDM, it is usu-
ally OK to accept connections without a VNC password in this case.
=====================================================
Of course I had to make an xinetd file, but I seem to have this working.
I am running as nobody from xinetd as mentioned above if that is a
problem. I can connect with a vnc viewer and it pops up a new window.
However, I don't get the xdm login window, just a blank pattern. The
docs imply that it'll coordinate with xdm and give me a login window.
I found instructions here to try and get xdm to work with a vnc window:
http://homepage.ntlworld.com/daniel.rigal/xdmvnc.html
I changed all the files mentioned and rebooted. But, I still just get a
window with a blank pattern when I connect to :50. When I try to run the
xdm test:
X -query hostname :1
it seems to start something up another window but with the same blank
background pattern I see in the vnc window. I can ctl-alt-F7 &
ctl-alt-F8 to go back and forth.
But, it seems like I am missing something that will enable xdm to take
control of the new windows created.
What am I missing ?
Thanks
Chris Kottaridis
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- From: Chris Kottaridis
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