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The following hint works with other sync tools or network shares too, Dropbox is chosen here because it can easily be set up and run by everyone.

First make sure the latest Version of Dropbox is installed on the Macs (https://www.dropbox.com/downloading). Make sure you have a backup of your data in case something goes wrong.

The ...

Dropbox is a great way to keep data that need to be accessed on multiple hosts and/or multiple people in sync. If you have privacy concerns just use encrypted containers for you data.

One little disadvantage of Dropbox is, that it can't be accessed via WebDAV or even SSH. If you have a server with ...