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I have a centos 6.4 box running openstack grizzly. I have various instances running, yet I can not view their console. Horizon has a built in console viewer called novnc-proxy, which is not working either. For debugging purposes I try to connect to the vnc port directy. I have a network connection, but can not see any output.

The compute host has instances:

$ virsh list
 Id    Name                           State
  81    instance-0000010d              running
 82    instance-0000010e              running
 84    instance-00000110              running
 85    instance-00000111              running

They have a vnc port open:

 $ virsh vncdisplay 85

The port is listet as open:

$ ss -l |grep -v |grep 590
LISTEN     0      1                       *:5907                     *:*       
LISTEN     0      1                       *:5908                     *:*       
LISTEN     0      1                       *:5909                     *:*   

I can connect to that port from outside using telnet:

$ telnet 5909
Connected to
Escape character is '^]'.
RFB 003.008

I can connect to that port with remmina, which then is listet as an established connection:

$ ss |grep 5909
ESTAB      0      0   

Still I don't see anything. What is going on here?

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Can you please show the contents of /etc/sysconfig/vncserver ? – Itai Ganot Aug 12 '13 at 9:25
It turns out is is a client issue ... I can view console with gtkvncviewer. Not sure whats bugging remmina. – Isaac Aug 12 '13 at 9:29

You can run this short script I wrote, I use it when deploying many servers:

yum install pixman pixman-devel libXfont tigervnc-server.x86_64 -y
cat <<EOF > /etc/sysconfig/vncservers
VNCSERVERARGS[6]="-geometry 1152x864"
chkconfig vncserver on
/etc/init.d/vncserver start

During the script run you will be asked to set the VNC password and when it finishes you'll be able to connect to the server like so: #vncviewer hostname:5906

share|improve this answer

It turns out is is a client issue ... I can view console with gtkvncviewer. Not sure whats bugging remmina.

share|improve this answer

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