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Full Discussion: vncserver
Operating Systems Linux Red Hat vncserver Post 302525096 by ygemici on Wednesday 25th of May 2011 04:49:00 PM
Old 05-25-2011
x0vncserver: unable to open display ""
you have to a DISPLAY for x11 forwarding to view data.
so you must x11 forward to a X11 source (if you work windows,use xming or xmanager..)
or you must connect a linux console.

for other problem
first remove "-nohttpd" from vncservers file.some versions does not support this.
Code:
# grep nohttpd /home/vct/.vnc/console-0124.local:1.log

and then restart (probably this is not the main problem)
Code:
# service vncserver restart

after than can you write this log in forum after we can examine this.
Code:
# cat /home/vct/.vnc/console-0124.local:1.log

and you can check vnc service is running?
Code:
# x=$(sed -n 's/.*vncPort = \([0-9]*\).*/\1/p' /usr/bin/vncserver) ; nc -z `hostname -s` $x-$((x+110)) ; netstat --protocol=inet -lp|grep -i vnc

most importantly you must be sure you have access to vncserver!
..you maybe access to vnc port but following the data transfer is problem because of blocked your 3way hand-shake level while before beginning communication via tcp sockets.therefore appropriate sockets do not pass the establish state and kernel network layer genarates an error message to vnc and vnc convert it to own message and echoes ur tty..

you can check access to vncserver via vncPort that defined above
Code:
# telnet vncserver vncPort

regards
ygemici
 

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LEARN ABOUT DEBIAN

vnc4passwd

vncpasswd(1)						     Virtual Network Computing						      vncpasswd(1)

NAME

       vncpasswd - change a VNC password

SYNOPSIS

       vncpasswd [passwd-file]

DESCRIPTION

       vncpasswd  allows  you  to set the password used to access VNC desktops.  It stores an obfuscated version of the password in the given file
       (default $HOME/.vnc/passwd).  The vncserver script runs vncpasswd the first time you start a VNC desktop, and invokes Xvnc with the  appro-
       priate -rfbauth option.	vncviewer can also be given a password file to use via the -passwd option.

       The  password  must be at least six characters long, and only the first eight characters are significant.  Note that the stored password is
       not encrypted securely - anyone who has access to this file can trivially find out the plaintext password, so vncpasswd always sets  appro-
       priate  permissions  (read and write only by the owner).  However, when accessing a VNC desktop a challenge-response mechanism is used over
       the wire making it hard for anyone to crack the password simply by snooping on the network.

FILES

       $HOME/.vnc/passwd
	      Default location of the VNC password file.

SEE ALSO

       vncviewer(1), vncserver(1), Xvnc(1) vncconfig(1),
       http://www.realvnc.com

AUTHOR

       Tristan Richardson, RealVNC Ltd.

       VNC was originally developed by the RealVNC team while at Olivetti Research Ltd / AT&T Laboratories Cambridge.  It is now being	maintained
       by RealVNC Ltd.	See http://www.realvnc.com for details.

RealVNC Ltd							    03 Mar 2005 						      vncpasswd(1)
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