set lgm as the group for the files on the tuxfamily server

[aoloe]

• the existing directories should set the setgid permission that lets le new directories and files to inherit the group:
  find /path/to/directory -type d -exec chmod g+s '{}' \;
• each user should have a uuid that allows the group to read and write
  • in ssh:
    umask 002 (instead of 0022) in the .bashrc file
  • in ftp: give the rights 775