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PAM_UMASK(8) Linux-PAM Manual PAM_UMASK(8)

NAME

pam_umask - PAM module to set the file mode creation mask

SYNOPSIS

pam_umask.so [debug] [silent] [usergroups] [umask= mask]

DESCRIPTION

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 order:
 
•umask= argument
 
•umask= entry of the users GECOS field
 
•pri= entry of the users GECOS field
 
•ulimit= entry of the users GECOS field
 
•UMASK= entry from /etc/default/login
 
•UMASK entry from /etc/login.defs
 

OPTIONS

debug
Print debug information.
silent
Don't print informative messages.
usergroups
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).
umask=mask
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.

RETURN VALUES

PAM_SUCCESS
The new umask was set successfully.
PAM_SERVICE_ERR
No username was given.
PAM_USER_UNKNOWN
User not known.

EXAMPLES

Add the following line to /etc/pam.d/login to set the user specific umask at login:
 
        session optional pam_umask.so umask=0022
 

SEE ALSO

 
pam.conf(5), pam.d(5), pam(7)

AUTHOR

pam_umask was written by Thorsten Kukuk <kukuk@thkukuk.de>.
06/04/2011 Linux-PAM Manual