VNC User Guide - RealVNC

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Chapter 7: Making Connections Secure By default, connection requests are accepted from all client computers. To reject connection requests from a particular client computer, click the Add button: Specify the network address, or range of addresses, in IPv4 format, and then choose one of the following options. Option Accept the connection Reject the connection Ask the VNC Server user what to do Explanation Accepts connection requests from the specified client computer(s). Rejects connection requests from the specified client computer(s). Displays connection prompts enabling a host computer user to either accept connection requests, allow ‘view only’ access, or reject requests from the specified client computer(s). If no host computer user is present, connection requests are automatically rejected after 10 seconds. For more information on connection prompts, see Preventing particular users connecting on page 113. Note that if you do filter network addresses, the order of rules in the VNC Server - Filter Rules dialog is important. The first matching rule determines what happens to connection requests from a particular client computer. For example, if a rule rejecting a client computer is encountered before one accepting it, then all connection requests from that client computer will be rejected. You can move rules up and down in the dialog using the arrows. By default, the Default rule accepts connection requests from all client computers. You can change this so that it rejects or queries all connection requests instead. To do this, select the Default rule, and click the Edit button. Note this rule is always last in the dialog. 112 VNC User Guide
Chapter 7: Making Connections Secure Preventing particular users connecting You can prevent a particular user connecting by causing a connection prompt to appear on the host computer’s desktop: A connection prompt enables a host computer user (if one is present), or an already-connected user, to identify the connecting user and either accept the connection request, allow ‘view only’ access to the host computer, or reject it. If no response is received within ten seconds, then the connection request is automatically rejected. Note that if you are setting up VNC Server on your own computer for remote access then enabling this feature may prevent you connecting. Note: In some circumstances, certain users connecting to VNC Server (Enterprise) or VNC Server (Personal) are able to bypass connection prompts. To submit these users to prompts, revoke the Connect without accept/reject prompt VNC permission. For more information, see Customizing VNC permissions on page 115. To display connection prompts, open the VNC Server - Options dialog. More on this dialog. On the Connections tab, choose Show accept/reject prompt from the When VNC Viewers connect dropdown: VNC User Guide 113
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VNC® User Guide Version 5.0 June 2
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Contents About This Guide 7 Chapter
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Appendix A: Saving Connections 121
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