[Ronaldhon]

How would you go about setting up file/directory permissions in GNU/Linux for the following scenario?

1. a shared working directory, we'll call it: working_directory;
2. multiple users, all belonging to the same group, which we'll call admin;
3. all members of the admin group should have full access to create/read/edit/delete files in the working_directory, including those created by other users;
4. working_directory has permissions of 775 and the GUID bit set;
5. umask is set to 022 (so default file permissions are 644) and I'm unsure about changing it to 002. This would make what I want possible, but would change the setting for the whole system, which worries me a little;
6. no acl software package installed, but if other people have had success with this and it's not a pain to setup, then please do suggest it;

[rakesh007]

Could you setup a mount point in fstab and change the umask in the options column?

[seopositive2]

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[LOUISE]

Assuming you are an administrator, you have to set up file sharing first in your system preferences. If it's Snow Leopard or Leopard, it's under "Security" in the settings, if you are running Tiger, it's under sharing.