On Wednesday, January 31, 2018, 4:37:02 PM PST, stan <stanl-fedorauser@vfemail.net> wrote:

> I checked all bash_history and system logs, didn't see any explicit
> bash call of "chmod g+w ..."  ; so I suspect some software is calling
> by chmod syscall,


> What is your umask set as?  That determines what permissions new files

I did search of umask in bash_history log or any system wide logs, didn't see any manual changes of umask, and checking its value now, is still the default 0022

as I understand, umask applies for new files creation only, while my home directory existed for a long time, since the system installation



for those Linux servers, fortunately I still have other accounts can login to check, and run sudo chmod g-w /home/user; it looks like only the most often used account is affected; many other user accounts under /home have no impact.