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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).

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How to transfer files over network preserving the xattrs? (self.linux)

submitted 3 months ago by CtrlAltOoops 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?

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[–] [email protected] 4 points 3 months ago* (last edited 3 months ago) (1 children)

The whole samba filenames thing is configurable. I only use linux systems and I ran into that same issue.

By default samba seems to mangle file names. Not to mention that Windows systems don't tend to support naming your files whatever you want the same way they do on linux so we need to map those characters to something else. To solve this I include a few different entries in my samba config file to fix the issue.

mangled names = no
vfs objects = catia
catia:mappings = 0x22:0xa8,0x2a:0xa4,0x2f:0xf8,0x3a:0xf7,0x3c:0xab,0x3e:0xbb,0x3f:0xbf,0x5c:0xff,0x7c:0xa6

That's just if you choose to go with samba. I only use it cause it was easier to setup than NFS when I tried.

[–] CtrlAltOoops 2 points 3 months ago

Hey, thanks for taking the time to reply.

Yep, when I tried using Samba I had these catia:mappings configuration in my smb.conf. Thing is it slightly changes things (two that I specifically remember are ¿ and ¡ ), sometimes doesn't recognizes filenames (don't remember exactly which chars), etc.

I tried to setup Samba, NFS and sshfs. Took a couple of days to understand a little better each one and, by trial and error, have an idea of their perks. I do appreciate your suggestion but I don't think Samba is what I'm looking for.