Question

deny user access to all but one database in SQL instance

Asked by: mattolan

I have a user that needs access to our sql server. they are currently set up as local administrator on our sql box. I would like to restrict them to only being able to work with a single database on this box and deny them access to all other database's on this machine.
I am by no means a sql guru and was hoping I could find one here who could help me in the right direction.

our machine is a windows 2003 box running ms SQL 2005. SQL is configured to use mixed authentication

thanks

thanks

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Asked On
2009-10-29 at 07:21:11ID24854684
Topics

SQL Server 2005

,

MS SQL Server

,

Databases Miscellaneous

Participating Experts
2
Points
250
Comments
9

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Answers

 

by: YZlatPosted on 2009-10-29 at 07:24:34ID: 25694010

r default database to that database

 

by: chapmandewPosted on 2009-10-29 at 07:25:10ID: 25694020

If they are an admin on the machine, you'll need to make sure the local admins group is not assigned sa permissions on the SQL instance.  You can find this under the logins folder in SSMS.

 

by: YZlatPosted on 2009-10-29 at 07:27:37ID: 25694045

In management studio, go to Security, then Logins, then in the rite pane right-click on the user name, select Properties and click on user mapping. Then make sure only that particular database is checked

 

by: mattolanPosted on 2009-10-29 at 07:43:42ID: 25694198

chapmandew:
this sounds like what I am looking for but I don't see a local admins group. there is a BUILTIN\Administors. but I am not sure how to see what accounts are assigned to the group withing SQL

YZlat:
I have tried checking off only the permission to the database I want them to see and seting deny permission on the database's that I don't want them to access. but becuase they have local admin rigts to the machine and SQL is set up in mixed mode this is getting over ridden somewhere by the local admin rights and doesn't work

 

by: chapmandewPosted on 2009-10-29 at 07:46:45ID: 25694239

If you don't see it in SQL then that is a good thing...it means that the people who are admins on the machine aren't admins on the instance.  Now you can just go to each db and explicitly deny that user access to the db...does that make sense?

 

by: mattolanPosted on 2009-10-29 at 09:22:17ID: 25695321

which is what I was trying to do, but I doesn't seem to work. I am fairly certain that users who are admins on the machine are admins on the DB I am just not sure where the permission is set.

is there a way to see what groups a sql user belongs to?

 

by: mattolanPosted on 2009-10-29 at 10:15:35ID: 25695884

ok, the permissions are definitely coming from the windows local admin rights some how. I removed these rights on my test account and I was denied access to the databases in question just as I expected and could still access the other database according to the sql permissions

 

by: mattolanPosted on 2009-10-30 at 08:12:53ID: 25703753

ok. I figured out which group the local admin group belongs to a deleted it. problem solved. now my SQL permissions apply correctly.
under security in the users folder there was a group "builtin\Administrators" this is the group I needed to delete

 

by: mattolanPosted on 2009-10-30 at 08:14:05ID: 31647517

this was what I needed to do. but the expert didn't explain what the group was called or where I could find it.

20120131-EE-VQP-002

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