Also you might want to "su -"
the "-" will allow the person to inherent root's environment this also goes
for any user you want to su to example "su - eric". Please also note you
have to be su'ed already.

i.e. "Note the names have been changed to protect the innocent."

login: eric
Password:*** 
Last login: Fri Jun 16 07:07:57 from somewere.on.the.net
[eric@test eric]$ su -
Password:***
[root@test /root]# su - user1
[user1@test user1]$ 

cheers,
--------------------------------------------
Eric Peters     Mail:[EMAIL PROTECTED]
System Admin Network Operations
Inherent Technologies Inc.   
office (503)224-6751 ext 224
--------------------------------------------

> -----Original Message-----
> From: Ernest N. Wilcox Jr. [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, June 15, 2000 10:04 AM
> To: [EMAIL PROTECTED]
> Subject: Re: [expert] Mdk71 - su question !
> 
> 
> On Wed, 14 Jun 2000 - Andre Steden, you wrote:
>   |  Hello,
>   |  
>   |  if i login as root an console 1 and want to switch to 
> another user with
>   |  su frank 
>   |  i get :
>   |  bash: /dev/tty1: permission denied
>   |  (with Mandrake 7.1)
>   |  
>   |  i tried the same with Mdk7.0 - there is no such message.
>   |  
>   |  bye
>   |  -- 
>   |  Andre Steden <[EMAIL PROTECTED]>
> 
> I just tried this with 7.0, and got the "permission denied" 
> responce as well.
> 
> Try becomming a superuser, then the other user and it will 
> work - but you
> will still be logged onto your first user's home folder.
> 
> So using user1 and user2 for the two user id's, when you log 
> in as yourself,
> 
> you will see [user1@localhost user1],
> 
> then become the superuser, [root@localhost user1],
> 
> and filally become the second user, [user2@localhost user1]
> 
> If I understand correctly, the denial of permission to direct 
> user id changes
> is a security feature which keeps regular users from 
> switching their identity at
> will (even if you know the second user's passsword).
> 
> If you know another user's id and password, this is not much 
> of a hindrence,
> but it is still an inconvenience to have to log out and then 
> back in as the
> other user. However it does prevent non authorized user id changes.
> 
> HTH,
> 
> -- 
> ___________________________
> Ernie ([EMAIL PROTECTED])
> 

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