Showing posts with label permissions. Show all posts
Showing posts with label permissions. Show all posts

Friday, March 30, 2012

Restrict user from default tables (access given by public role)

I am newbie.. probably this is a silly question..
I added few users with only SELECT permissions to 2 User Tables. But
when these users login,they could also see multiple system tables
(syscontraints, syssegments , dtproperties) . From reading this forum
and other articles, I understand these are visible due to the user
being part of the default "public" role.
My Question is, is there any way to remove/hide these system tables
from the user?.. The team manager doesnt like these users seeing
anything other than the 2 User Tables they supposed to see..
Thanks in advance for all tips/advices/suggestionsTell your team manager he's a turd. No...actually don't say that, it'll
probably get you fired.
I wouldn't go messing around with the permissions on the system tables,
you're likely to stuff up some functionality of SQL Server in that DB
for those users. The system tables are a very necessary part of
day-to-day data & schema manipulation...for every user of the DB.
Things like optimising query plans, for example, rely on data stored in
the system tables. I'm not positive if things will start breaking if
you start revoking or denying permissions on those system tables but I
wouldn't risk it.
There's an option in SSMS (Tools | Options | Environment | General |
Hide system objects in Object Explorer), not sure about SQLEM or QA,
that will hide the system tables in the GUI but not change their
underlying permissions. That may placate the pointy-haired manager
<http://www.dilbert.com/> asking for this change, perhaps.
What tool are the users using to "see" these system tables?
*mike hodgson*
http://sqlnerd.blogspot.com
sreejith.ram@.gmail.com wrote:

>I am newbie.. probably this is a silly question..
>I added few users with only SELECT permissions to 2 User Tables. But
>when these users login,they could also see multiple system tables
>(syscontraints, syssegments , dtproperties) . From reading this forum
>and other articles, I understand these are visible due to the user
>being part of the default "public" role.
>My Question is, is there any way to remove/hide these system tables
>from the user?.. The team manager doesnt like these users seeing
>anything other than the 2 User Tables they supposed to see..
>Thanks in advance for all tips/advices/suggestions
>
>|||Thanks Mike... This convinced me I should spend my time convincing the
manager to leave it alone than trying to hide the tables
The users are using SQL Server Enterprise Manager.|||> The users are using SQL Server Enterprise Manager.
EM is more of a DBA/Developer tool than an end-user tool. In any case, you
can hide most of the system object noise by unchecking the 'show system
databases and system objects' option under the EM server registration
properties.
Hope this helps.
Dan Guzman
SQL Server MVP
<sreejith.ram@.gmail.com> wrote in message
news:1138983030.862156.116660@.f14g2000cwb.googlegroups.com...
> Thanks Mike... This convinced me I should spend my time convincing the
> manager to leave it alone than trying to hide the tables
> The users are using SQL Server Enterprise Manager.
>|||I thought there was that "hide" option in SQLEM. I just couldn't
remember where it was (been using SSMS too long <g> ).
*mike hodgson*
http://sqlnerd.blogspot.com
Dan Guzman wrote:

>EM is more of a DBA/Developer tool than an end-user tool. In any case, you
>can hide most of the system object noise by unchecking the 'show system
>databases and system objects' option under the EM server registration
>properties.
>
>

Restrict User Access in MSSQL 2000

Hi,

I have few SQL user who has permissions on different databases. When they are accessing MSSQL server from Enterprise Manager they can see all Databases but can not access them and they can change file size allocated to them. I want to restrict this and they can only see database belongs to respective user and restrict user to change allocated size. Please help me with this as I am not able to find the solution.

Thanks & Regards,

Gaurav

You cannot restrict the users in SQL Server 2000 from seeing the available databases (this can be done in SQL Server 2005 by revoking VIEW ANY DATABASE to the public server role).

Also, a database owner will be able to change the file size for the databases he owns; you cannot prevent this.

Thanks
Laurentiu

Wednesday, March 28, 2012

Restrict ASP.NET app DB permissions using Integrated Security

How might I Restrict ASP.NET app DB permissions using Integrated Security?

I can see how it's done with SQL Authentication, but I'd prefer to do it with Windows Authentication.

Is it a matter of restricting the permissions of the general ASP.NET user (“NT AUTHORITY\NETWORK SERVICE”)...seems like it might affect too much.

Or can I have a Windows user/identity/account that is specific to a single ASP.NET Application?

Any guidance on this would be appreciated.

Thanks!

You can assign a specific domain account to the application.

Check out using an 'Application Pool' for Web Security.

|||Bingo. Thanks!