Set default umask for users when they login?

Hello, I need some help setting the default umask for a user when they log in.

I tried to set umask 0002 in gecos field. Doesnt work.
I tried to change in /etc/login.defs. Doesnt work.

Still default 0022 when they login.
Need some help here.

use umask in /etc/fstab ( man fstab ? )

use umask in /etc/fstab ( man fstab ? )

I have the same problem and tried umask in fstab,

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proc            /proc           proc    defaults                     0       0
/dev/mmcblk0p1  /boot           vfat    defaults                     0       2
/dev/mmcblk0p2  /               ext4    defaults,noatime,umask=0007             0       1


Doesn't work. It makes the file system read-only, which took an awful lot of googling to get out of, but no effect on umask which was still 0022. Any other way to fix the umask problem?

How about the obvious - set it in /etc/profile?

The /etc/profile file states that you shouldn't set it there:

# The default umask is now handled by pam_umask.
# See pam_umask(8) and /etc/login.defs.

That comment does not say that umask should not be set in /etc/profile, only that it is not.

For pam_umask to work, it would have to be mentioned somewhere in /etc/pam.d/, and it is not. So:

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echo "session optional pam_umask.so usergroups" |sudo tee -a /etc/pam.d/common-session

The "usergroups" argument may be sufficient for your purposes without changing login.defs, gecos, etc.

That comment does not say that umask should not be set in /etc/profile, only that it is not.

So I just tried setting it in /etc/profile, and to my surprise it actually worked. Thanks!