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Turning VNC off on KVM VPS
I'm used to working with xen, openvz, and vmware. I just got my first KVM VPS from prometeus.
After installing the OS (CentOS 6) I wanted to disable/turn off VNC, since it seems like it's a security risk to leave it enabled all the time. I can turn it off in the SolusVM settings, but after I do that and reboot, it doesn't boot anymore.
Any idea how I can disable VNC and still let the VPS boot? Does everybody just leave it enabled all the time? 8 character VNC passwords would be relatively easy to brute force.
Comments
I keep VNC enabled only during OS installation.
I have a KVM with Prometeus as well. I always disabled VNC after install, no problem at all.
Maybe something else's the matter with your VPS ... ?
Interesting... Maybe it's something with CentOS. Are you running CentOS 6?
No ... I'm running Debian 6 x86 .
Are you sure turning off VNC was the only thing you changed before rebooting (that rendered the VPS unbootable) ?
Yeah, I just tried it again. I rebooted, logged in & out fine, then turned off VNC from SolusVM and rebooted again, and it's dead (not even pingable). It does show as online from SolusVM, though.
kvm with prometeus and vnc turned off, no problem here too. Using debian squeeze.
@david perhaps your centos build doesn't boot if it doesn't see a console attached. perhaps google for "headless" centos advice...
Thanks for the ideas. I compared the grub.conf file to the grub.conf file on a xen vps and found 2 extra lines. After removing these 2 lines, it's able to boot with VNC turned off:
splashimage=(hd0,0)/grub/splash.xpm.gz
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