User permissions

[KamPutty]

Hi all,

I'll try to sum this up as concise as I can.

I have 2 Groups, called "group-1", and "group-2"
I have 2 Users, called "user-1", and "user-2"

user-1 is a member of group-1
user-2 is a member of group-2

I've created a directory called "group-1-sandbox" and "group-2-sandbox"

The permissions for both directories are

drxwrxw--- group-1 group-1 ./group-1-sandbox
drxwrxw--- group-2 group-2 ./group-2-sandbox

Okay,
so any member of group-1 can R/W/X in group-1-sandbox (ie. user-1)
so any member of group-2 can R/W/X in group-2-sandbox (ie. user-2)

user-1 trying to get to group-2-sandbox will fail due to access restrictions.

So far so good...question nearly here!...

Now, if user-1 creates a new file in group-1-sandbox, the default permissions will be
"rw-rw-r--", the "everyone" gets read perrmissions, so to fix this, I've got the following in the startup for the users

umask 0007

Now, when I create, I get "-rw-rw----", this is great as I do not want "everyone" to get ANY access.

Okay, now my question!

The owner and group owner from a newly created file for user-1 is

-rw-rw---- 1 user-1 user-1 0 2010-02-01 14:06 kam

I would like it to be

-rw-rw---- 1 user-1 group-1 0 2010-02-01 14:06 kam

I want the parent group to be used and not the user's...

Can this be done?

Thanks!

~Kam (^8*

[scathefire]

well the easiest way is to change the users default group:

usermod -G group1 user1

[KamPutty]

looking at the command, it looks like it's for setting and forgetting the group membership, I would like to adjust the "default" membership upon login for that user.

How can I change this value for just the current "login" for that user?

Thanks!

~Kam

[scathefire]

actually i meant -g not -G which is basically the same as --gid. assigning temporary group permission the way I think you are talking about just really isn't feasible or at least to me it sounds like an administrative nightmare even if does exist.