Linux

48153 readers

741 users here now

From Wikipedia, the free encyclopedia

Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

Rules

Posts must be relevant to operating systems running the Linux kernel. GNU/Linux or otherwise.
No misinformation
No NSFW content
No hate speech, bigotry, etc

Related Communities

Community icon by Alpár-Etele Méder, licensed under CC BY 3.0

founded 5 years ago

MODERATORS

[email protected]

How to transfer files over network preserving the xattrs? (lemmy.world)

submitted 3 months ago by [email protected] to c/[email protected]

17 comments fedilink hide all child comments

Title.

The situation is basically this:

NFS works, it's very fast, keeps the xattrs but if used without Kerberos it's not secure. If used with Kerberos it works, but has a ticket that expires and forces me to reenter the credentials frequently in order to use it. If there was a way to use NFS with Kerberos and save the credentials NFS would be the perfect solution.
Samba works fine too, also keeps the xattrs but I had some troubles with filenames (mainly with some special characters, emoji, etc). Besides, as both my server and my clients run Linux I prefer to avoid it if I have the choice.
sshfs would be the natural choice, not as fast as NFS but it's pretty secure, I already use it in most of my network shares but I just can't find a way to make it preserve the files xattrs.

Do you guys have any suggestions or maybe any other options that I might use?

you are viewing a single comment's thread
view the rest of the comments

[–] [email protected] 13 points 3 months ago (1 children)

Secure file transfers frequently trade off some performance for their crypto. You can't have it both ways. (Well, you can but you'd need hardware crypto offload or end to end MACSEC, where both are more exotic use cases)

rsync is basically a copy command with a lot of knobs and stream optimization. It also happens to be able to invoke SSH to pipeline encrypted data over the network at the cost of using ssh for encrypting the stream.

Your other two options are faster because of write-behind caching in to protocol and transfer in the clear-- you don't bog down the stream with crypto overhead, but you're also exposing your payload

File managers are probably the slowest of your options because they're a feature of the DE, and there are more layers of calls between your client and the data stream. Plus, it's probably leveraging one of NFS, Samba or SSHFS anyway.

I believe "rsync -e ssh" is going to be your best over all case for secure, fast, and xattrs. SCP might be a close second. SSHFS is a userland application, and might suffer some penalties for it

[–] [email protected] 4 points 3 months ago

I'll take a closer look into rsync possibilities and see if it applies to my situation. I appreciate your input.