How to temporarily stop syncing Dropbox
You can do couple of things:
- Disable it completely.
- Limit the download/upload bandwidth rates.
Another and perhaps quicker option is to pause syncing for as long as you need to. It works flawlessly on the recent stable and beta versions on Windows, so it should work the same under Ubuntu.
Right click on Dropbox's tray icon and select Pause syncing, as shown in the following screen capture.