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I have not been able to test methods for connecting using an iPad. In their Essential iPad Apps for Business document, Apple recommends the iSSH app, which is a combined SSH and VNC console that supports tunnelling. It should be possible to use this to connect via SSH to open a VNC session and to connect using VNC via a tunnel to observe. Instructions can be found on the Zingersoft website. It can be downloaded for $9.99 from the iTunes app store. Another app that appears to support VNC and SSH is Remoter Pro, which can be downloaded for $8.99 from the iTunes app store. Instructions for this are on the Remoter Labs website. (Note the $2.99 Remoter VNC does not support SSH.)

Note on paid-for apps: This if for information only, and we have no connection with these companies. We can make no guarantee that these apps will work to connect to the Arecibo network – if you choose to buy one of these apps then this is at your own risk.

Unfortunately, there do not appear to be any free apps that support SSH tunnelling. There are free VNC apps, such as Mocha VNC Lite and VNC Client. It may be possible to use these along with an SSH app such as iTerminal to make an SSH tunnel and forward the VNC connection to your iPad. However, the consensus on StackExchange seems to be that iOS does not allow SSH connections to persist in the background for more than around 10 minutes. A VNC client with SSH tunnelling included is therefore likely to be necessary (unless you jailbreak your device).

If you have an app that supports tunnelling, you will need to configure it to forward port 59NN on dataview to 59MM locally, where NN is the VNC display number from above (including a leading 0 if necessary), and MM (again including a leading 0 if necessary) is the local display number you want to use. If you wanted to forward display 48 on dataview (from the example above) to display 1 on your local machine, you would need to connect port 5948 on dataview to port 5901 on your local machine. You then need to connect you vncviewer to display MM (or port 59MM) on your local machine.