VNC Problem

eng_mohammedmostafa · 02-15-2009, 07:56 AM

Dears . . .

I tried to connect to Linux Redhat Server from my Windows PC by VNC.
It sometimes work and sometimes no.

I downloaded 2XApplicationServerClient.tar.bz and installed it.
After this . . .I can connect by VNC.

But,back again to the same problem (Can't connect).
really , I don't know WHY??

Please,need advise.

Thanks & Best regards . . .

r3sistance · 02-15-2009, 10:53 AM

Hi, What version of RHEL are you using? Since if your using 4.6+ I believe you can just use yum install vnc-server" to install a VNC server. Are you running iptables or any other form of firewall?

eng_mohammedmostafa · 02-15-2009, 03:40 PM

Version: Red Hat Enterprise Linux Release 4 update 6 32-bit.

The strange that VNCSERVER service already running but i can't connect by VNC.

r3sistance · 02-16-2009, 01:11 AM

Are you running Iptables or any other form of firewall?

eng_mohammedmostafa · 02-16-2009, 04:06 AM

Dear,,

Thank you for your follow-up and help

For Your Information . . .
When i log out from the server and try connect by VNC from my PC .... Fails.

But when not log out from the server and try to connect ... Success.

Thanks & Best regards . . .

r3sistance · 02-16-2009, 01:50 PM

Sounds like your using SSH tunnels to by pass IPtables, so when SSH is not connected you don't have your SSH tunnel and are unable to login. When you are logged into SSH, you have an SSH tunnel set-up and it by-passes the server's firewall.

eng_mohammedmostafa · 02-17-2009, 07:42 AM

Dear ,,

FYI . . .
No firewall or IPtables are enabled.
Also , I connect to server internally in the same location (Not from outside the company).

servat78 · 02-18-2009, 07:17 PM

It sounds as if you are launching your vncserver as a logged in user, so the vncserver is only accessible when you are logged in, and actually killed if you log out. Running the server as a user makes it easy to run vnc without having to set up configuration files, but the drawback is that no vncserver is launched by the system when a new vnc console is requested from the outside.

You will have to check your vnc configuration, and also make sure that you do not confuse the vnc numbers for simultaneously running vnc servers.

Debian

eng_mohammedmostafa · 02-25-2009, 11:04 PM

Thanks for help and advise . . .