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LDAP query for SQL databses in AD

Posted on 2006-06-28
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I have an AD environment which has many rogue servers and services attached. I am needing to query AD for various databases: SQL, Oracle and DB2. I am unsure if any are registered in AD, but would like to look. I need some guidance on querying AD for registered databases.

Also, if there is a good MSDN (or other) resource for delving into the area of database registration with AD, I'd appreciate a point in the right direction.

Thank you,
John Darby
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Question by:johndarby
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by:MohanKNair
ID: 17007107
Active Directory is a hierarchial database. The command line tool ldapsearch can be used to query active directory. This can be done from other systems like linux or unix box. Also there are tools which does LDAP queries.

Query Active Directory from the iSeries
http://www.itjungle.com/fhg/fhg061505-story01.html

Querying Active Directory using .NET classes and LDAP queries
http://www.codeproject.com/dotnet/activedirquery.asp


Also see these links about AD
Windows 2000 Active Directory
http://labmice.techtarget.com/activedirectory/default.htm

Oracle and Active Directory
http://dizwell.com/main/content/view/100/154/

Installing and Configuring Windows 2000 or 2003 DNS to Support Active Directory
http://www.oucs.ox.ac.uk/windows/active/dns/index.xml?style=printable
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by:tnapolitano
ID: 17007169
It sounds like you want to search your network for databases and create an inventory of sanctioned/rogue DB's. Is that correct?

Active Directory is a directory, a catalog. Rogue databases may not necessarily be apart of your AD structure. Databases could reside on standalone systems.

What I would do is start with a port scan of the network (get some kind of sign-off/approval first).

One port scan utility (in my mind, the only one) is NMap (www.insecure.org).

SQL ports include MSSQL:1434, Oracle:1525, DB2:523, MySQL:3306. Start with those.





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by:MohanKNair
ID: 17007293
Using PL/SQL it is possible to query LDAP

DBMS_LDAP - Accessing LDAP From PL/SQL
http://www.oracle-base.com/articles/9i/LDAPFromPLSQL9i.php

Building a Simple SQL Interface to any LDAP Server
http://www.oriole.com/SQL2LDAP.html

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by:tnapolitano
ID: 17008368
LDAP queries are well and good, but there's no reason an unauthorized sql server would necessarily show up in Active Directory.

AD is a directory. A SQL Server is a system that an administrator would join to the domain, place in the directory. There is an Active Directory database (Ntds.dit) which provides the physical storage of all objects in the forest.

So, again, if it was me, I would start my search/inventory of SQL systems by port scanning. Next, Network Sniffing. Then ODBC sniffing (definately try to secure those ODBC connections, as all rx/tx are in clear-text).

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by:johndarby
ID: 17010708
I have been doing just that. However, I am looking for an LDAP query (will use it in ADUC) which will show me all registered databases in AD.

Thank you for your reply!

John
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tnapolitano earned 500 total points
ID: 17011542

Here is a link to vbscript that can search AD for instances of published MSSQL databases.
http://www.sqlmag.com/Article/ArticleID/41841/sql_server_41841.html

Ostensibly, the code is about publishing databases in AD programatically, but the scripts can also be used to search.

This, again, is dependent on the databases being published in AD in the first place.
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by:johndarby
ID: 17012011
Thanks for the link...I am off to work, now!

John
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by:johndarby
ID: 17013004
I tried a custom query using the objectClass specified in the VBS file. Here is the query I formed...

(&(&(objectClass=mS-SQL-SQLServer)(DC=adi,DC=swedish,DC=org)))

However, this doesn't seem to produce any results. My Spotlight on SQL Enterprise finds registered SQL databases with no problem, but the interface doesn't reveal the LDAP queries it uses to acruire this data.

Any idea on correcting the above query to show registered SQL databases?

Thanks,
John
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Expert Comment

by:tnapolitano
ID: 17013369

Try something like this:

objCommand.CommandText = "Select displayName from 'LDAP://CN=MS-SQL-SQLServer,CN=*,OU=<ComputersOU>,DC=adi,DC=swedish,DC=org'




Links:

sp_ActiveDirectory_SCP (Transact-SQL)
http://msdn2.microsoft.com/en-us/library/ms189776.aspx

http://technet2.microsoft.com/WindowsServer/en/Library/8127f5ed-4e05-4822-bfa9-402ceede47441033.mspx?mfr=true
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