Vncthumbnailviewer changes the size and positioning of the VNC sessions you have open so that all sessions are visible. Unfortunately, the per-host options that you have set through the GUI, such as the encoding used or whether a connection is read-only, are not saved when you save your list of hosts. Once you have used the Add New Host option to set up your sessions, you can save the list of hosts so that you can easily reestablish all your sessions the next time you run vncthumbnailviewer.
#Tightvnc server configuration multiple monitors plus
Normally the port for a VNC server will be 5900 plus the VNC display number. There is no direct support for the VNC display number concept, so if you are running multiple VNC servers on one machine you must enter the corrent port number for your display.
![tightvnc server configuration multiple monitors tightvnc server configuration multiple monitors](https://content.spiceworksstatic.com/service.community/p/post_images/0000021768/53972cf8/attached_image/VNC_Dual_Screens.png)
Aside from the authentication type you can enter the username and password. Supported authentication methods are none, password, VNC encrypted password, and MS-Logon. It prompts you for a hostname, port, and authentication information. The file menu has an Add New Host option that allows you to establish a connection to a VNC server. The main vncthumbviewer window that appears allows you to connect to one or more VNC servers. Start vncthumbnailviewer by executing java -jar vncthumbviewer.jar. For this article I used version 1.4.1 of vncthumbnailviewer with IcedTea Runtime Environment (build 1.7.0-b21) 64-bit as my Java runtime. vncthumbnailviewer is written in Java, so you need a Java Runtime Environment (JRE) installed in order to run it.
![tightvnc server configuration multiple monitors tightvnc server configuration multiple monitors](https://static.filehorse.com/screenshots/file-transfer-and-networking/tightvnc-screenshot-01.png)
There are no vncthumbnailviewer packages for Ubuntu, openSUSE, or Fedora. It uses the TightVNC Java code, and is thus fairly stable and glitch-free. Vncthumbnailviewer was created for monitoring desktops in a computer lab environment. vncthumbnailviewer acts like many VNC clients, so it can help you monitor many VNC servers. With vncthumbnailviewer you can see many VNC desktops at once and jump in to control any of them with a double click.