syncing files: lftp vs rsync vs dropbox vs nextcloud
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backed up online scares me. But my upload speed has always sucked and my download speed while better than a decade ago is nothing to brag about. And then there's security aspects and legal aspects. You have plausible deniability when it's on a thing in your house and you're not the only one living there. A lot less so when it's on a 3rd parties computer and they have your cc and other personal identifying credentials.
I do my backups / syncing by external drives locally. When I'm lazy, computer to computer via netcat. Rarely I'll setup an NFS share.
The only online service that looks like it has potential from my perspective would be Tarsnap. I definitely would not trust the other "cloud" storage providers or their client software.
Otherwise you can get quite far by rotating through enrypted multi-terabyte USB drives and always keeping one or two off site.
I do both to my web server for critical files as well as to my local file server. For both I use rsync -aviS with output to a date_named_log.txt file. I also use the ssh rsa token along with config files to make both backups easier. see my sig for those details.
> I do my backups / syncing by external drives locally
If there is a break-in, or a fire, or something, locally; you would lose everything.
Also, if you are away from your computer, there is no way to reach your files.
If there's a fire or break in, I have bigger issues than my "data".
You can setup various ways to access your files remotely. Without needing a cloud service. Granted limited by your home network speed.
Locally doesn't always mean in only one location. Once a year make a mass backup, wrap that up in plastic and duct tape it to hell and back, stick it in a water proof box, and bury it somewhere in the yard. Fireproof at least. And would require "effort" by said break in, probably more effort and time than most are willing to do. Assuming that they know that buried three feet down and under that 100lbs rock is "data".
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