Linux 2.6 - man page for pam_umask (linux section 8)
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PAM_UMASK(8) Linux-PAM Manual PAM_UMASK(8)
pam_umask - PAM module to set the file mode creation mask
pam_umask.so [debug] [silent] [usergroups] [umask=mask]
pam_umask is a PAM module to set the file mode creation mask of the current environment.
The umask affects the default permissions assigned to newly created files.
The PAM module tries to get the umask value from the following places in the following
o umask= argument
o umask= entry of the users GECOS field
o pri= entry of the users GECOS field
o ulimit= entry of the users GECOS field
o UMASK= entry from /etc/default/login
o UMASK entry from /etc/login.defs
Print debug information.
Don't print informative messages.
If the user is not root and the username is the same as primary group name, the umask
group bits are set to be the same as owner bits (examples: 022 -> 002, 077 -> 007).
Sets the calling process's file mode creation mask (umask) to mask & 0777. The value
is interpreted as Octal.
MODULE TYPES PROVIDED
Only the session type is provided.
The new umask was set successfully.
No username was given.
User not known.
Add the following line to /etc/pam.d/login to set the user specific umask at login:
session optional pam_umask.so umask=0022
pam.conf(5), pam.d(5), pam(7)
pam_umask was written by Thorsten Kukuk <email@example.com>.
Linux-PAM Manual 06/04/2011 PAM_UMASK(8)
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