How to set up group write permissions on new created files on cifs mount point (samba/fstab)
Can you try to add mount option file_mode=0770
,dir_mode=0770
.
Try to modify
/etc/fstab
file://smbserver/nas /media/nas cifs uid=bertrand,gid=nas,credentials=/root/.smbcredentials,file_mode=0770,dir_mode=0770 0 0
Or,
mount
commandsudo mount -t cifs //smbserver/nas /media/nas -o uid=bertrand,gid=nas,rw,credentials=/root/.smbcredentials,file_mode=0770,dir_mode=0770
My test environment:
OS version: Ubuntu 10.04.4 LTS
kernel version: 2.6.35-25
mount.cifs version: 1.12-3.4.7
samba version: Version 3.4.7
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web.learner
Updated on September 18, 2022Comments
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web.learner over 1 year
I try to mount a samba share with cifs and set write permission to the group on the default file/directory creation mask.
After hours spent searching the web and trying, I can't get this to work, all my files are created with "rw-r--r--" and I want "rw-rw----"My serveur is a Debian on Cubieboard (Cubian r4)
All umasks of all users are set to 002 using /etc/pam.d/common-session file with "session optional pam_umask.so umask=002"
This works great.My client is Ubuntu Desktop 64bit 13.10.
All umasks of all users are set to 002 using /etc/bash.bashrc file with umask 002 (because the pam_umask.so doesn't work on the client).
This works great too.User "bertrand" and group "nas" exist on both the client and the server.
On the server, user "bertrand" has only one group "nas".
On the client, user "bertrand" has "nas" as secondary group.
User bertrand has same password on client, server and samba server.=> /etc/samba/smb.conf on the server :
[global] server string = %h map to guest = Bad User obey pam restrictions = Yes pam password change = Yes passwd program = /usr/bin/passwd %u passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* . unix password sync = Yes syslog = 0 log file = /var/log/samba/log.%m max log size = 1000 name resolve order = lmhosts host wins bcast dns proxy = No wins support = Yes panic action = /usr/share/samba/panic-action %d idmap config * : backend = tdb [NAS] comment = NAS drive path = /media/usbnas valid users = @nas force group = nas read only = No create mask = 0660 directory mask = 0771
=>
/etc/fstab
on the client://smbserver/nas /media/nas cifs uid=bertrand,gid=nas,credentials=/root/.smbcredentials 0 0
The
.smbcredentials
contains:username=bertrand password=********
The mounting point works on my client, I can browse my nas, create, delete, modify files and directories but all new files and all new directories always has read only permission for group.
How to give group write permissions by default ?
Thanks.
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user221594 over 10 yearsmy quetion is askubuntu.com/questions/385317/…
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Ben Johnson over 5 yearsVery helpful! While
file_mode
anddir_mode
are explained clearly on the cifs manpage, the arguments that they accept are not. In particular, the full octal representation is required! That is,755
will yield "garbled" permissions such asd????????? ? ? ? ?
, whereas0755
will work as expected.