ext_267: Photo of DougS, who has a round face with thinning hair and a short beard (Default)
posted by [identity profile] dougs.livejournal.com at 12:13pm on 29/11/2005
I have an SSH server running on my 2003 server at home. I can collect files when I'm elsewhere.
 
posted by [identity profile] sbisson.livejournal.com at 12:20pm on 29/11/2005
As I said, I find those methods too slow for practical use over GPRS (or 3G for that matter). Wired protocols and mobile networks do not mix.
 
posted by [identity profile] cobrabay.livejournal.com at 01:44pm on 29/11/2005
I'm confused. In what way is this unlike a wired protocol? You are still transferring a file directly from your home PC to your laptop. Unless FolderShare is doing some funky on-the-fly compression (and one hopes encryption too) with smart re-try on failure in some way particularly suited to mobile connections, in what way is this not like using an SFTP client? I appreciate the advantages in things like synchronisation and sharing, these can be tedious to set up with SFTP, but unless it works out your connection speed and type and alters the file transfer accordingly (packet sizes, retries, etc.) automatically, what would be the difference in transfer speed and usablility if all you are doing is copyinging a few files?
 
posted by [identity profile] sbisson.livejournal.com at 01:47pm on 29/11/2005
SSH and the like tunnel other protocols - which adds a considerable overhead over narrow bandwidth links. They're also optimised for wired connections - large packet sizes and low latency.

More lightweight solutions don't tunnel, don't add overhead, and tend to be designed to work for smaller packet sizes and higher latencies.
 
posted by [identity profile] nmg.livejournal.com at 03:33pm on 29/11/2005
Hmmm. Unfortunately, since FolderShare provide no details on their protocol, it isn't clear what the overheads in their protocol are, nor whether it makes specific provision for mobile users.
mdlbear: blue fractal bear with text "since 2002" (Default)
posted by [personal profile] mdlbear at 03:41pm on 29/11/2005
ssh doesn't "tunnel" data transfers; it uses exactly the same SSL encryption that a web browser does, and probably with less overhead because it's not dealing with RFC822 headers, cookies, and the like. And it uses zlib for compression. Of course, I don't know what else is going on with Foldershare, since it's proprietary. They might be doing something like rsync, which would help with synchronizing large files with small changes, but probably not otherwise.
mdlbear: blue fractal bear with text "since 2002" (Default)
posted by [personal profile] mdlbear at 03:44pm on 29/11/2005
Let's hear it for rsync over ssh!

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