Originally Posted by
SoManyMiles-SoLittleTime
Please correct me if I'm wrong, but I thought dropbox was a syncing service, NOT a cloud service.
So if I delete files from one of my machines, they are eventually synced, i.e., deleted, from all, including at dropbox.com.
It's only deleted if you remove the file from your dedicated Dropbox folder (or via website). For the OP, she can copy all files she might need to access on her upcoming trip into the Dropbox folder. It syncs across all devices (including the laptop). Updates will be synced up to the Dropbox website (and across all other devices that are turned on and connected to the internet). Upon returning from the trip, the OP can then move all of the files off the Dropbox folder back into her NAS. Only then will those files be removed from the cloud and other devices.