Hi, I have: -u1 belong to group1(primary group) and groupAll. -u2 belong to group2(primary group) and groupAll. -a folder called groupAll which has its permission bit to 770. Owner bit is root, Group bit is groupAll. u1 and u2 have full read and write access but can't delete other owners' files in groupAll, mean that if u1 create a file then u2 can read and write but cant delete u1's file. here is my share [groupAll] path=/groupAll valid users = @groupAll force group = groupAll ...... ...... Due to no delete permission on Linux how can I specify value for create mask and directory mask. All users in groupAll still can delete file or folder though I set create mask and directory mask to 700. I think users get permission from parent directory which is groupAll that why they can delete sub foler even they has no permission. Please give me suggesstion or help me to create this kind of share. thanks, Stand __________________________________________________ Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, more http://taxes.yahoo.com/