Sshfs mount and file permissions on server


I have a file server running latest ubuntu LTS (VERSION=“22.04.3 LTS (Jammy Jellyfish)”

I mount the server disk from two client machines, one running Ubuntu 22.04 and the other running Fedora 40. Both fuse installations are plain vanilla.

If I check the files permissions on the server when I transfer files from the clients, I observe the following

From Ubuntu: -rw-rw-r–+
From Fedora: -rw-r–r–+

Transferred files are plain txt files created with touch

Has anyone encountered the same problem?

Ubuntu and Fedora sets different umask for the sshd daemon. On Fedora you have umask = 022 meaning it removes write permission for group and others. Ubuntu you have umask = 002 meaning it removes write permission for others only.

The client has no say whatsoever what file permissions gets set.


Ok, but is there a solution so that when I transfer files from Fedora client to Ubuntu server the permissions are


This is my goal

Added gnome, gvfs, nautilus, sshfs, workstation and removed server

That is an Ubuntu question, but it basically involves how to set the umask for users.

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I do not understand. This must be a recurrent problem because files on file servers are often used by groups which need a “w” permission.

I hoped that fuse/sftp/sshfs on fedora client could be setup so that the files you transfer to the file server are “g+w”. This works from ubuntu clients.

If this is not possible, seems to me that makes Fedora little usable.

sudo sed -i -r -e "s/^(UMASK\s+).*$/\1002/" /etc/login.defs

login.defs: shadow password suite configuration | shadow-utils File Formats | Man Pages | ManKier

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Thanks a lot, works fine!

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Just to develop a little further:

login.defs is executed at terminal login

To set correct UMASK by shell, u need to add “umask 002” to /etc/bashrc

bashrc is executed at session login.

Dolphin (KDE) does not set 002 umask unless you add:

“session optional usergroups” to the /etc/pam.d/system-auth file

reboot and login again.

Not sure this is the most correct solution