Wrote a java code to search for users from Active Directory server.
We get the user list but dont know the domain to which each user belongs.
How can the domain of the user be found from Active Directory programatically.
One method thought of is :
1)Get the distinguished name of user from Active Directory.
2)Parse the distinguished name.
3)Get the substring that starts the first instance of "DC=".
4)Strip off the "DC=" at the beginning.
5)Replace all instances of ",DC=" with a "."
6)What is left is the DNS domain name of the user.
Is this reliable.
Please suggest some other solution.
The DistinguishedName attribute contains the domain name user comes from. Also, you might want to check the adspath attribute, which in my case looks like
LDAP://contoso/CN=John Doe,OU=Human-Resources,DC=contoso,DC=com
so, contcatenating all the DC attributes gives you the domain name user comes from.
Related
I need to admit that I am a beginner with AD DS Schema.
I want to make some user attribute fields required at the time of creating a user account in AD.
I followed the instructions in the article here. I made a mistake (don't remember which values I set in mustContain attribute) now I can't create an active directory account I would like to query mustContain attribute in class= user to find the values in mustContain. I tried ldp.exe search but confuse what parameters in need to use in search function.
Probably you would need to set up your Base DN to CN=User,CN=Schema,CN=Configuration,DC=... and Scope to Base. In the Attributes section put mustContain or leave asterisk to get all the attributes.
How can I get all users properties like (email, address, phone and etc..)
using search filter syntax?
Can't find anything in the docs.
I tried this
(&(objectCategory=person)(objectClass=user)(cn=Erika Wynn))
but all I get is the dn details :
CN=Erika Wynn,CN=Users,DC=****,DC=local
I wish to get all user fields General (telephone, email..), Address (Street, City), Organization.
LDAP allows you to specify which attributes you want to receive. If you do not specify anything, Active Directory will return every attribute that has a value. So if it is not doing that in your case, then there must be some part of the code that has set the list of attributes to only the distinguishedName.
You will have to show your code for us to help you more. You can update your question to include your code.
I should of just provide a user name similar to AD login, as a filter and any attribute I needed to get.
I used this great article, to get all the different attributes that you can fetch from Active Directory.
https://www.manageengine.com/products/ad-manager/help/csv-import-management/active-directory-ldap-attributes.html
this is the query:
filter=(sAMAccountName=username) attributes=cn,department,company,streetAddress,L,st,co,mail
I have an application that pulls user information from an OU in Active Directory. The parameters it takes are a base for the search and a filter string.
I have an OU I want to pull information from, but there is a sub OU I want to avoid:
Wanted
users from OU=People,DC=mydomain,DC=com
Not Wanted
users from OU=Evil,OU=People,DC=mydomain,DC=com
I know that this could be done by rewriting the application performing teh import to stop it searching sub-OUs, but is there any way to do this with an LDAP filter on the search? Something like (DistinguishedName !contains "Evil") or similar that will let me exclude users based on the path to the user, rather than filtering on a property of the user.
If you're using System.DirectoryServices(.Protocols) in .NET you could set the SearchScope to OneLevel to only search in the People-OU (and no child-OUs). But that won't work if you have any OU=Good,OU=People,DC=mydomain,DC=com...
The second option would be to query the People-OU for all sub-OU:s (objectClass=organizationalUnit) and then issue multiple search requests; one for each of them (except the "Evil" one).
Edit: #geoffc - that will be really difficult to implement. By default all authenticated users have read access to all objects in Active Directory. Just setting a "Deny Read" on the Evil OU won't do the trick because the read right for authenticated users is set on the individual user object (in this case) and thus has precedence over the Deny ACL set on the OU. You will essentially have to set the Deny Read ACL on each of the objects in the Evil-OU and always make sure new objects added to the directory get the same Deny rights set. You could edit the Active Directory schema and remove the rights for Authenticated Users but that will break a lot of other things (including Exchange) and is not supported by Microsoft.
AFAICT, this cannot be done with an LDAP filter in active directory. Many other LDAP implementations support extensible matching, but AD does not.
Users recommending filters containing (ou:dn:=Evil) or wildcards on distinguishedName have not tested against Active Directory.
The following will do the trick:
(&(objectClass=user)(!(distinguishedName:=%Evil%)))
I ran into a similar problem while building an address book for scan to e-mail.
I tried (&(objectClass=user)(!(distinguishedName:=*Evil*))) but it seems that some MFP's don't accept * as a wildcard, but they do accept %
According to http://www.zytrax.com/books/ldap/apa/component.html, it's possible to get what you want using LDAP Component Filters. Here's an example that would match what you describe:
(&(objectClass=organizationalUnit)(!(ou:dn:=Evil)))
This matches all objects who have an objectClass of organizationUnit, but rejects anything whose DN contains a component that matches ou=Evil.
The objectClasses organizationalUnit and its descendant inetOrgPerson allow the attribute ou to be present in an entry. Add an ou attribute with value evil to the objects subordinate to the ou=evil branch and include the assertion (!(ou=evil)) to the search filter to limit responses from the candidate list to those that do not contain an attribute ou with the value evil. Alternatively, the LDAP Assertion Control could be used on requests in the same fashion to ensure that requests that contain an ou with the value evil are not processed. Professional quality directory servers that are LDAP compliant will support both of these methods.
How to get the details of the deleted objects from Active directory using LDAP.
The deleted objects are stored in the separate container, to retrieve the objects have the look on this technet site.
It is the inbuilt feature and should have the operating system of Windows Server 2008 or higher.
*This answer comes from Rodney Anderson, contractor who sits next to me and happens to know AD quite well. He says email him with any questions you have (link provided)
Use dsquery.
http://support.microsoft.com/kb/258310 (LDAP Query)
...the other method is a DSquery from the command line using the following command you should be able to retrieve most attributes which remain in the tombstone (everything in one line): Just keep in mind that this query will not necessarily return all attributes which are preserved in a tombstone - some critical objects and changes of the list are hardcoded and will remain in the tombstone no matter what the searchflags state. This is the solution I used and it will take some tweaking for their domain.
dsquery * cn=schema,cn=configuration,dc=yourcomain,dc=com
-filter "(&(objectClass=AttributeSchema)(searchFlags:1.2.840.113556.1.4.803:=8))"
-scope subtree -attr name
On MSDN there is a nice article on finding tombstone objects in Active Directory using the .NET framework DirectorySearcher class.
Well unfortunately there isn't all that much data available from a deleted object. Only about enough data is retained to be able to replicate the deletion to other DC's from my experience. You can get what is available through System.DriectoryServices. Some of this seems to have to do with security and not wanting people to root around looking at old items.
To get the details of Deleted objects from active directory using LDAP server is before getting the details we should be aware of the administration limits.These administration limits are as such like InitRecvTimeout,MaxActiveQueries ,MaxConnections,MaxConnIdleTime,MaxPageSize,MaxPoolThreads,MaxQueryDuration,MaxValRange.
Once we get aware of the limits of the administration we should be able to Default the user setting.
After this go and view current policy setting...at the command prompt type LDAP setting press enter,then type in the connection and then once all the connection got displayed there and then see which all connection is not visible.This will make you known who all user are deleted at the LDAP.
You can use DirectorySearcher to list the Deleted objects with the Tombstone property set to true
using(DirectorySearcher srch = new DirectorySearcher(de))
{
//to return only deleted objects otherwise you can give any valid LDAP filter
srch.Filter = "isDeleted=TRUE";
// Instruct the DirectorySearcher to return deleted objects
srch.Tombstone = true;
srch.FindAll();
//...
}
I get the members of a AD group, but instead of the user name, im getting the display name.
How can i get the user name?
Look for sAMAccountName in the properties you get back.
Well, i think this might be impossible, as the only users related property is the "members".
So as a workaround i used the DirectoryService with the "member" property value to fetch the user again from the AD and get it's sAMAaccoundName.
I'll be happy to hear about another solution to save the call to the AD for each user except the first call.
Thanks