File ACLs

If you have a group working in a common folder, the old school way is to set the SGID on the directory, so that new files inherit the group of the folder, and to umask 002 on the user's .profile so that new file creation resulted in group r/w files.

chmod g+s directory_name

echo umask 002 /home/some_user/.profile

This has no effect on users uploading via SFTP and what not, so it's not good for everything.

The new way is to work with the ACL abilties and set the directory default ACL

.... working on this

See this post [create Best Practices/Software/Apache/Virtual Hosting]