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.
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
[root@console-0124 ~]# grep nohttpd /home/vct/.vnc/console-0124.local:1.log
[root@console-0124 ~]# echo $?
1
[root@console-0124 ~]# service vncserver restart
Shutting down VNC server: 1:vct [ OK ]
Starting VNC server: 1:vct
New 'console-0124.local:1 (vct)' desktop is console-0124.local:1
Starting applications specified in /home/vct/.vnc/xstartup
Log file is /home/vct/.vnc/console-0124.local:1.log
[ OK ]
[root@console-0124 ~]# service vncserver status
Xvnc is stopped
[root@console-0124 ~]# cat /home/vct/.vnc/console-0124.local:1.log
Couldn't open RGB_DB '/usr/X11R6/lib/X11/rgb'
Xvnc Free Edition 4.1.3 - built Oct 15 2008 12:55:42
Copyright (C) 2002-2008 RealVNC Ltd.
See RealVNC - VNC remote control software for information on VNC.
Underlying X server release 40201000, The XFree86 Project, Inc
Thu May 26 13:51:41 2011
vncext: VNC extension running!
vncext: Listening for VNC connections on port 5901
vncext: created VNC server for screen 0
error opening security policy file /usr/X11R6/lib/X11/xserver/SecurityPolicy
Could not init font path element /usr/X11R6/lib/X11/fonts/misc/, removing from l ist!
Could not init font path element /usr/X11R6/lib/X11/fonts/Speedo/, removing from list!
Could not init font path element /usr/X11R6/lib/X11/fonts/Type1/, removing from list!
Could not init font path element /usr/X11R6/lib/X11/fonts/CID/, removing from li st!
Could not init font path element /usr/X11R6/lib/X11/fonts/75dpi/, removing from list!
Could not init font path element /usr/X11R6/lib/X11/fonts/100dpi/, removing from list!
Fatal server error:
could not open default font 'fixed'
xrdb: Connection refused
xrdb: Can't open display 'console-0124.local:1'
xmodmap: unable to open display 'console-0124.local:1'
imsettings information
==========================
Is DBus enabled: yes
Is imsettings enabled: yes
Is GTK+ supported: no
Is Qt supported: no
DESKTOP_SESSION:
DISABLE_IMSETTINGS:
IMSETTINGS_DISABLE_DESKTOP_CHECK:
DBUS_SESSION_BUS_ADDRESS: unix:abstract=/tmp/dbus-moeyekcgK0,guid=6088ec8248f40e fa902ffca44dde9330
GTK_IM_MODULE: gtk-im-context-simple
QT_IM_MODULE:
XMODIFIERS: @im=imsettings
IMSETTINGS_MODULE: none
(imsettings-start:18653): IMSettings-WARNING **: Failed to invoke a method `GetV ersion' on com.redhat.imsettings:
Launch helper exited with unknown return code 1
Waiting for reloading the process...
(imsettings-start:18653): IMSettings-WARNING **: Failed to invoke a method `GetV ersion' on com.redhat.imsettings:
Launch helper exited with unknown return code 1
Mismatch the version of im-settings-daemon.
** (gnome-session:18664): WARNING **: Cannot open display:
[root@console-0124 ~]# x=$(sed -n 's/.*vncPort = \([0-9]*\).*/\1/p' /usr/bin/vncserver)
[root@console-0124 ~]# echo $?
0
[root@console-0124 ~]# nc -z `hostname -s` $x-$((x+110))
Connection to console-0124 5900 port [tcp/vnc-server] succeeded!
Connection to console-0124 5984 port [tcp/couchdb] succeeded!
[root@console-0124 ~]# netstat --protocol=inet -lp|grep -i vnc
[root@console-0124 ~]# echo $?
1
[root@console-0124 ~]#
[root@console-0124 ~]# telnet vncserver 5901
telnet: vncserver: Name or service not known
vncserver: Unknown host
[root@console-0124 ~]#
Last edited by Scott; 05-26-2011 at 04:05 PM..
Reason: Code tags...
* you must install "fonts-xorg-base" package for fonts that needed to run Xserver.
* you must install "xorg-x11-xfs" package for running font server that provides fonts to Xserver.
[vct@console-0124 .vnc]$ cat /home/vct/.vnc/console-0124.local:1.log
Couldn't open RGB_DB '/usr/X11R6/lib/X11/rgb'
Xvnc Free Edition 4.1.3 - built Oct 15 2008 12:55:42
Copyright (C) 2002-2008 RealVNC Ltd.
See http://www.realvnc.com for information on VNC.
Underlying X server release 40201000, The XFree86 Project, Inc
Thu May 26 13:51:41 2011
vncext: VNC extension running!
vncext: Listening for VNC connections on port 5901
vncext: created VNC server for screen 0
error opening security policy file /usr/X11R6/lib/X11/xserver/SecurityPolicy
Could not init font path element /usr/X11R6/lib/X11/fonts/misc/, removing from list!
Could not init font path element /usr/X11R6/lib/X11/fonts/Speedo/, removing from list!
Could not init font path element /usr/X11R6/lib/X11/fonts/Type1/, removing from list!
Could not init font path element /usr/X11R6/lib/X11/fonts/CID/, removing from list!
Could not init font path element /usr/X11R6/lib/X11/fonts/75dpi/, removing from list!
Could not init font path element /usr/X11R6/lib/X11/fonts/100dpi/, removing from list!
Fatal server error:
could not open default font 'fixed'
xrdb: Connection refused
xrdb: Can't open display 'console-0124.local:1'
xmodmap: unable to open display 'console-0124.local:1'
imsettings information
==========================
Is DBus enabled: yes
Is imsettings enabled: yes
Is GTK+ supported: no
Is Qt supported: no
DESKTOP_SESSION:
DISABLE_IMSETTINGS:
IMSETTINGS_DISABLE_DESKTOP_CHECK:
DBUS_SESSION_BUS_ADDRESS: unix:abstract=/tmp/dbus-moeyekcgK0,guid=6088ec8248f40efa902ffca44dde9330
GTK_IM_MODULE: gtk-im-context-simple
QT_IM_MODULE:
XMODIFIERS: @im=imsettings
IMSETTINGS_MODULE: none
(imsettings-start:18653): IMSettings-WARNING **: Failed to invoke a method `GetVersion' on com.redhat.imsettings:
Launch helper exited with unknown return code 1
Waiting for reloading the process...
(imsettings-start:18653): IMSettings-WARNING **: Failed to invoke a method `GetVersion' on com.redhat.imsettings:
Launch helper exited with unknown return code 1
Mismatch the version of im-settings-daemon.
** (gnome-session:18664): WARNING **: Cannot open display:
your xstartup file is seem correct.but some required files are missing or couldnot find.
therefore you must be sure installed packages called xorg-x11-fonts* and xorg-x11-xfs.
at now , can you write output of below comma?
Code:
# rpm -qa|grep xorg-x11-fonts
and
Code:
# getenforce
# iptables -L
# which twm
# ls -l /usr/ share/X11/fonts/
# find / -name "75dpi" -type d
if there are `/usr/share/X11/fonts/[misc|75dpi|100dpi ...]` and then
Code:
mkdir -p /usr/X11R6/lib/X11/fonts/{100dpi,75dpi,CID,Type1,Speedo,misc}
ln -sf /usr/share/X11/fonts/75dpi /usr/X11R6/lib/X11/fonts/75dpi
ln -sf /usr/share/X11/fonts/100dpi /usr/X11R6/lib/X11/fonts/100dpi
ln -sf /usr/share/X11/fonts/misc /usr/X11R6/lib/X11/fonts/misc
ln -sf /usr/share/X11/fonts/Type1 /usr/X11R6/lib/X11/fonts/Type1
ln -sf /usr/share/X11/fonts/100dpi /usr/X11R6/lib/X11/fonts/100dpi
## and others that whatever folder as fonts type , you can link same way
and others same way
if this process`s fails then try to add your /etc/X11/xorg.conf to below lines
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