I just created a CentOS 6 32 deployment on my Linode 512 and followed the instructions on CentOS to activate VNC.

I have tried to access it via an VNC client on my laptop, but get a "Connection Failed" notice from the client app. So, it doesn't appear to be a authentication problem or anything like that and the Cent OS command line indicates the VNC is running.

Is there something I'm missing? Does Linode block this kind of access for security reasons, and require me set up a VPN or something? Is it not a Linode thing but a Linux or CentOS thing? Is there more I need to install?

I need to get access via VNC asap to do an emergency migration, so I' hoping someone can help me soon!

Thanks!

I'm not terribly familiar with VNC, but the answer is that no, linode does not block any access (with the exception that the Atlanta DC blocks IRC). It's more likely a CentOS thing. If you're in Atlanta, make sure you're not trying to use a port in the 6660-6669 range (IIRC).

Do you have a firewall that might be blocking the relevant ports?

IPTABLES?

SELINUX?

What does:

chkconfig --list vncserver

service vncserver status

cat /home/username/.vnc/xstartup

show?