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How to share a folder in Linux? (mander.xyz)

submitted 3 days ago by ranzispa@mander.xyz to c/sysadmin@lemmy.world

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I work on an HPC and often I have to share files with other users. The most approachable solution is to have an external cloud storage and recline back and forth. However there's some projects that are quite heavy (several TB) and that is unfeasible. We do not have a shared group. The following is the only solution I found which is not to just set al permissions to 777, and I still don't like it.

Create a directory and set ACL to give access to the selected users. This works fine if the users create new files in there, but it does not work if they copy from somewhere else as default umask is 022. Thus the only appropriate solution is to change default umask to 002, which however affects file creation system wide. The alternative is to change permissions every time you copy something, but you all know very well that is not going to happen.

Does it really have to be such a pain in the ass?

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[–] chris@l.roofo.cc 4 points 2 days ago

You can set acls on directories that get applied recursively. This makes ist possible to have all files be the correct permission. I am on the go right now but you should look into setfacl. It's been a while but I am pretty sure that worked. That way you should even be able to say which groups or users can do what with granularity.