Monitor security changes

Question

Monitor security changes

Mike Levan

SSChampion

Points: 14201
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February 4, 2009 at 7:10 am

#204916

Actually the problem is we have 3 people as sysadmin roles on sql server. when some one changes any security we cudnt find who changed it. Last day when a developer supposed to have db_writer access and he has it since a while but all of suddenly his permission was took off and he cudnt write to the database by which he lost 2 days of time.
How can i track who changed the permission out of 3 perosns who has sysadmin roles

Viewing 12 posts - 1 through 11 (of 11 total)

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Mike Levan SSChampion Points: 14201 More actions · Answer 1

How cud i implement Audit for security without using sql profiler.

Is there any script out there which runs all the time and audit each login and give me all the information ina table. what i need is

Who granted permissions,dropped user,disabled db_writer something like this.

MarkusB SSC-Dedicated Points: 37370 More actions · Answer 2

You could use DDL trigers which capture any CREATE or ALTER LOGIN/USER command and log the results into an audit table.

If you have a lot of 2005 servers it might also be worth looking at the Audit solution Jasper Smith wrote.

http://www.sqldbatips.com/showarticle.asp?ID=113

[font="Verdana"]Markus Bohse[/font]

maechismo_8514 SSCoach Points: 17510 More actions · Answer 3

How can i track who changed the permission out of 3 perosns who has sysadmin roles

Have you got default trace enabled on your server? You could check who changed the permissions...

Check this out:

http://www.sqlservercentral.com/articles/SQL+Server+2005/64547/

Mike Levan SSChampion Points: 14201 More actions · Answer 4

DEfault trace is enabled but i has trc files for only past 3 days.

Mike Levan SSChampion Points: 14201 More actions · Answer 5

Markus

Is it a free tool DDL Audit Sample Applications (1.0.0.0)?

How safe it is to run on production systems and how much does it cost?

olichap SSC Rookie Points: 42 More actions · Answer 6

I've had a DDL trigger monitor permissions changes but unfortunately sp_AddRoleMember does not seem to fire an event. Thus most changes are captured but when there are multiple DBAs working on many servers it would be nice to know when a user group was added to a role. The default trace has saved my butt many times. I have a job which runs on all our servers that imports the most current data from the trace file into a table within my dba database. It runs every 5-10 minutes (can't recall of the top of my head) and I think I keep about 2 months worth of data in the table.

Mike Levan SSChampion Points: 14201 More actions · Answer 7

olichap

Can you please share that job with me, I am looking for something similar.

thanks

MarkusB SSC-Dedicated Points: 37370 More actions · Answer 8

Mike Levan (2/5/2009)
Markus
Is it a free tool DDL Audit Sample Applications (1.0.0.0)?
How safe it is to run on production systems and how much does it cost?

Yes it's free as far as I know.

Is it safe? I never had any issues and it's probably safer than some scripts put together by an unexperienced DBA. It's simply uses Event Notification in combination with service broker to log any DDL change in a central repository.

You can also build it yourself from scratch if you want. There are plenty of articles on that topic. but a lot of DBA's I met are at least uneasy when it comes to service broker.

[font="Verdana"]Markus Bohse[/font]

Mike Levan SSChampion Points: 14201 More actions · Answer 9

I see trace files only for past 2 days in the folder C:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\LOG and i havea total of 4 files for 2 days each of size 20480 KB. How can i setup so that i can have atleast 6 months of data.

MarkusB SSC-Dedicated Points: 37370 More actions · Answer 10

Mike Levan (2/8/2009)
I see trace files only for past 2 days in the folder C:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\LOG and i havea total of 4 files for 2 days each of size 20480 KB. How can i setup so that i can have at least 6 months of data.

I'm not aware of any possibility to change the settings for the default trace. It will store a maximum of 5 trace files with a max size of 20 Mb. But if the server is restarted before the 20 Mb are reached a new file will be created at server start. So how far you can depends on the number of events which are traced and if you server had any restarts or not.

You can define you're own trace using sp_trace_create and store the files as long as you like. If you search this site you will find several examples on how to use sp_trace_create to create and schedule your own traces.

[font="Verdana"]Markus Bohse[/font]

Mike Levan SSChampion Points: 14201 More actions · Answer 11

I am collecting trace events by loading the file every 5 min into my own database but i cudnt find exact events when i changed permissions of a group or user. I tried changing user permission from removing the user from ddl_admin, not sure where can i see that event and user who did that?