When I turned the firewall back on, connectivity to port with VNC again failed. Since I wasn't concerned about connectivity to the viewer application, I looked at the rules for winvnc. That revealed that there were two rules, one for TCP and the other for UDP , but both only applied to "private" network profiles. I could also see that through the graphical user interface GUI for managing firewall rules by selecting Control Panel , System and Security , Windows Firewall , and then Allow an app or feature through Windows Firewall.
At the prior Windows Firewall window, I could see that the system believed it was connected to a "guest or public network". You can also see whether the Windows firewall believes you are currently connected to a public, private, or work network using the command netsh advfirewall show currentprofile at a command prompt. The system had only one possible network connection. I chose to enable the firewall rules for winvnc. I then clicked on OK. When last client disconnects In a helpdesk scenario, you normally "Do Nothing" when disconnecting.
When administering servers via remote control, you might wish to either "Lock Workstation" or "Logoff Workstation" for security reasons. Query on incoming connection If enabled, every time someone tries to connect via UltraVNC, a pop-up dialog informs the user and asks the user to either accept or refuse the attempt.
Configure the timeout for the dialog window and what action should be taken if the user clicked no button until timeout. This can be configured by "Disable Viewer inputs" or "Disable Local inputs". Multi viewer connections Here you can configure the behavior if multiple viewers attempt to connect to the same UltraVNC Server. Authentication "VNC Password" is a per-machine password and is required.
Requires computer and user to be in the same domain. Allows for cross-domain authentication, i. For MS-Logon I there is a dialog allowing to configure 3 groups:. Currently there are several encryption plugins available. Miscellaneous Remove Wallpaper for Viewers To reduce network traffic the wallpaper on the remote computer's desktop can be removed during the connection. Log debug info to the WinVNC. The logging level can be configured in the registry. Disable Tray icon The icon in the system tray can be disabled to disallow users to change any settings.
"Authentication failed" message means that. marn.copljo.info › faq › faq-ideal-administration-vnc-tightvnc-authentif. VNC Server won't let you connect without supplying a password unless the server is explicitly configured to use No Authentication.