A static public IP is permanent, while a dynamic public IP address likely changes when your router reboots. Your ISP might have assigned you either a static public IP address or a dynamic public IP address. This is a networking technique called port forwarding.īut let’s back up a moment. So, the router on the remote network must be configured to forward VNC connection requests to the Ubuntu PC. The router on a network acts as the switchboard operator. The switchboard operator checks the hotel directory and puts your call through to the correct room. You first call the hotel and give them the name of the guest you want to speak to. Imagine you want to call someone at a hotel. This is good to know, but it’s not enough to make a connection to the remote computer. The easiest way to do this is type “my ip” into the Google search bar on the remote Ubuntu computer and then press Enter. It’s actually the IP address of the router, which is assigned by the Internet Service Provider (ISP). The IP address a network presents to the internet is its public IP address.
If you’re not on the same network as the remote Ubuntu computer, you’re going to need to connect to it over the internet. However, if you want to make the Screen Sharing server accessible over the internet anyway, this section shows you how. This avoids exposing the VNC server directly to the network. Connect to the VPN from the internet, and then connect to the VNC system through the VPN. If you want to connect remotely, we recommend setting up a virtual private network (VPN) server on the network with the remote Ubuntu system.
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Ubuntu’s Screen Sharing won’t let you set a password longer than eight characters. Warning: We recommend using VNC only over a local network.
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How to Access the Remote System Over the Internet Now, we need to configure a client to connect to this computer, and that brings us to IP addresses. Avoid opening sensitive or private documents over the connection. Unless you have a secure VPN between your two sites or the VNC connection is otherwise protected (by being tunneled through SSH, for example), it’s safe to assume the connection is not encrypted.
This is more of a concern on connections across the internet. Whether the rest of the VNC traffic is encrypted depends on the capabilities of the VNC client. If you forget the password, you can always repeat these steps to reset it.Īfter you’ve typed a password, close the “Screen Sharing” and “Settings” dialogs.Įncryption is used to transfer and verify the password when a connection request is made. It’s limited to eight characters, so make it as complex as possible. This password is not related to any user account, but it must be provided by remote clients when they connect. Select the “Require a Password” radio button and type a password in the “Password” field. If you’re trying to connect remotely, this won’t work, so configure a password instead. When the toggle is turned on, the slider at the bottom of the dialog also changes to On.īy default, “Access Options” is set to “New Connections Must Ask for Access.” This means every user has to confirm each connection.
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