VNC - CentOS 7 Server login screen refresh preventing authentication

ccicarl · 02-02-2015, 03:32 PM

TigerVNC 1.4.1
CentOS 7 Server on Intel 64 bit
vncViewer is running on Windows 7 & 8.1
Using both TigerVNC and Tight VNC viewers

The CentOS GUI login screen appears with the correct (su) user name. The screen refreshes ~ twice per second allowing only one character to be entered in the Authentication box before refreshing. I am unable to login remotely via VNC. PuTTY access, etc., works fine.

sudowtf · 02-03-2015, 03:10 PM

Personally if i was forced to use vnc, i have always preferred x11vnc as it gives you an actual console rather than a virtual desktop.

on a side note, you should look into tunneling vnc over ssh assuming it's still inherently insecure as it historically has been.

ccicarl · 02-03-2015, 05:25 PM

What you recommend as the preferred method to remotely view the CentOS desktop from Windows?

sudowtf · 02-04-2015, 07:41 AM

i have 4 recommendations:

noMachine v4 - presents actual console
xRDP - presents virtual desktop and may need theming/x11 config
TeamViewer - presents actual console ; accessible over internet
x11vnc - presents actual console

i use multiple solutions on my workstation. i use either x11vnc(over ssh) or nomachine on a server.

ccicarl · 02-06-2015, 03:20 PM

Thank you for your advice. We are familiar with TeamViewer and will also try xvnc.

I found a directly related issue on the TigerVNC-Users group. TigerVNC crashing with KDE Plasma. I discovered this issue on our CentOS server as well.