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hummus
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Joined: 17 Sep 2002
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PostPosted: Wed Mar 31, 2004 11:59 pm    Post subject: remote Xterm Reply with quote

ok i have a dilemma


a server at my university runs SunOS 5.8. This server is running some sort of Xserver that allows windows clients using an Xterm emulator called "Exceed" to access the xserver and have xwindows forwarded over some sort of connection


now this server is not running any sshd, so its not X-forwarding through this, nor is it any sort of vnc

i attempted something suggested in a previous thread using a telnet connection and "export display" command, however there is no "export" command available to users

so i'm stuck here with windows users using an Xterm emulator able to access the server, but me with an actual xterm and xserver not being able to use it......

any ideas?
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Epyon
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PostPosted: Thu Apr 01, 2004 12:46 am    Post subject: Reply with quote

Have you tried "Xnest -query ipaddress :display" ?
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hummus
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PostPosted: Thu Apr 01, 2004 12:38 pm    Post subject: Reply with quote

thanks for the reply

i cant run this on the server as it doesnt work, (i can't find it anywhere in the X bin directories as it is on my machine

when i run it on my machine i get something like this.....
Code:

_XSERVTransSocketINETCreateListener: ...SocketCreateListener() failed
_XSERVTransMakeAllCOTSServerListeners: server already running

Fatal server error:
Cannot establish any listening sockets - Make sure an X server isn't already running


im starting to thing it has something to do with XDMCP, but this topic is a bit confusing so I'm going to have to look into it further.....
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smart
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Joined: 19 Nov 2002
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PostPosted: Thu Apr 01, 2004 2:44 pm    Post subject: Reply with quote

Exceed is an Xserver for windows and it does in the end pretty much the same thing as what was mentionned to you with this mysterious export thing you cannot find. We will do exactly that.

To get further, we need some things.

We need a network setup that allows the server to contact your machine. That is, you shall not sit behind a NAT or firewall. If you do, which is not too unlikely and also a good thing in some respect, you need to prepare these. We'll expect your iformation first before going on with this part.

We need your machine to run an Xserver, unfortunately we do not know anything about the client machine you try to log in with. That a proper gentoo box ?

If it does provide an Xserver, then allow it to receive connections from your server by using the "xhost" command. e.g.:
xhost +
as a catchall to allow for any host to connect, which is not too good an idea, but this shall be left to your exploration in the man pages...

We need to know the shell you run.
echo $SHELL
to let you know of your variant of "export" which could, for example also be "setenv".

then you will do either this export or setenv definition, or alternatively, you can give the xterm you'll start the same information in a commandline option, which would read:
xterm -display yourclientmachinenameoraddress:0.0
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hummus
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PostPosted: Thu Apr 01, 2004 5:31 pm    Post subject: Reply with quote

ok thanks, i hope i understand

the server side is running SunOS 5.8, and i dont have root access as Im only a student client

interpretitng your post this is what i will try when i get home(correct me if Im wrong please)

conditions: no nat or firewall in place, my machine(client)=gentoo box w/Xserver, server = SunOS 5.8

Code:

my machine $ xhost + domain.name.of.server


ok i did try that, now i telneted into the server and got the shell

Code:

server % echo $SHELL
/bin/csh


back on my machine the shell is bash
Code:

my machine $ echo $SHELL
/bin/bash


now i set the environment variable once I'm telneted into the server side, correct?

Code:

mymachine $ telnet server

login.....

server% setenv DISPLAY=mymachine:0.0


by doing so I'm telling it to display on my xserver back on mymachine, right?

i will try this asap thanks agian!
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hummus
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PostPosted: Mon Apr 05, 2004 12:51 am    Post subject: Reply with quote

this is output i get

Code:
// cannot connect to Xserver 'mymachine:0.0='
// X server is not running
// Cannot initialize device driver.
// ERROR -- Unhandled exception caught:
Connection to hardware type X11dd failed
26147:  /export/home/idea/pkgs/des_arch/_bin/da.exe -nocable
 fdd1fa04 waitid   (0, 6625, ffbee838, 3)....................


except I do have an xserver running

does it have something to do with options set in gdm.conf or xdm confs do you think?

i changed a coule of those while looking at other threads?
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hummus
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PostPosted: Mon Apr 05, 2004 12:35 pm    Post subject: Reply with quote

what would cause my machine to refuse the connection?

Code:
tesla% xcalc &
[1] 2659
tesla% Xlib: connection to "mymachine:0.0" refused by server
Xlib: No protocol specified
 
Error: Can't open display: mymachine:0.0
 
[1]    Exit 1               xcalc
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hummus
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PostPosted: Mon Apr 05, 2004 1:12 pm    Post subject: Reply with quote

i did run xhost + and xhost +server

Code:
access control disabled, clients can connect from any host
INET:tesla


what other permissions affect whether my xserver will allow a connection?
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