pam_umask -- PAM module to set the file mode creation mask
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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= entry in the user's GECOS field (see below for details)
     * umask= argument
     * UMASK entry from /etc/login.defs
     * UMASK= entry from /etc/default/login

   The GECOS field is split on comma ',' characters. Entries must be set
   in its 'other' (sub-)field (the 5th field within the GECOS field),
   which could be done, for example, using chfn --other. In addition to
   the umask= entry, the module also recognizes the pri= entry, which sets
   the nice priority value for the session, and the ulimit= entry, which
   sets the maximum size of files the processes in the session can create.

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).

   nousergroups
          This is the direct opposite of the usergroups option described
          above, which can be useful in case pam_umask has been compiled
          with usergroups enabled by default and you want to disable it at
          runtime.

   umask=mask
          Sets the calling process's file mode creation mask (umask) to
          mask & 0777. The value is interpreted as Octal.

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

AUTHOR

   pam_umask was written by Thorsten Kukuk <kukuk@thkukuk.de>.
