Given a username and a group, I need a simple LDAP query to run that can query if the username is a member of an Active Directory security group.
Here is what I have tried, but it is not running:
<LDAP://DC=subdomain,DC=domain,DC=com>;(&(objectClass=user)(sAMAccountName=myusername)(memberof=CN=Domain Admins,OU=Users,DC=subdomain,DC=domain,DC=com))
Am I missing something? Single quotes around Domain Admins? Or something else?
Generally LDAP queries for groups require the fully distinguished name of the user and the Group.
If you know the specific group then a LDAP Query like:
ldapsearch -H ldaps://server.domain.com:636 -x -D "adminguy#domain.com" -W -b "CN=myusername,CN=Users,DC=domain,DC=com" -s sub -a always -z 1000 "(&(sAMAccountName=myusername)(Memberof=CN=Domain Admins,OU=Users,DC=subdomain,DC=domain,DC=com))" "objectClass"
That returns a DN implies there the user sAMAccountName=myusername is a member of that specific Group.
If no DNS are returned then there is not sAMAccountName=myusername that is a member of that specific group.
However, this would not include any nested groups.
I am trying create a security group in LDAP server using unbounded-ldap-sdk but whenever I am trying to query the group with below filter, it is not returning the group.
Filter: (&(groupType:1.2.840.113556.1.4.803:=2147483648)(cn=test_group*))
The group is:
dn: CN=bpa,DC=developer,DC=tester,DC=example,DC=com
objectClass: group
groupType: -2147483646
instanceType: 4
objectClass: top
objectCategory: Group
cn: test_group
distinguishedName: CN=bpa,DC=developer,DC=tester,DC=example,DC=com
description: test group for testing
name: test_group
Code to query the server:
javax.naming.directory.SearchControls searchControls = new javax.naming.directory.SearchControls();
searchControls.setReturningAttributes({'name', 'cn'});
searchControls.setSearchScope(javax.naming.directory.SearchControls.SUBTREE_SCOPE);
DirContext.search("DC=developer,DC=tester,DC=example,DC=com", filter, searchControls);
Could you please help me to find out the problem?
Well, it is complicated. Microsoft Active Directory classifies Groups in several different methods.
GroupType is a bitmask attribute.
The group type in your entry is groupType: -2147483646 which is a Global Security Group.
I see nothing wrong with your LDAP filter or the group. However, you do not show the baseDN of the group search or if you are querying the Global Catalog. You could have an issue with LDAP referrals being returned.
Please always Tell us what you have tried and show logs or results and Read:
https://stackoverflow.com/help/how-to-ask
I am trying to search for All Groups and Members under a specific OU in my Active Directory.
The below query works fine.
ldapsearch -o ldif-wrap=no -b OU=BUSINESS_DOMAIN,OU=ONE,DC=myserver,DC=com -s one '(cn=*)' member cn
I can get the group names and member names(CN) from the AD. But is there a way to get the member emails as well?
Should I iterate over each member and trigger a separate LDAP Search programmatically or can I create a chained query?
EDIT
Based on the comments, adding more clarity- I am looking for email id of all users embedded under groups under a given OU.
This should work:
ldapsearch -o ldif-wrap=no -b OU=BUSINESS_DOMAIN,OU=ONE,DC=myserver,DC=com -s one '(cn=*)' member cn mail
Assuming you are using the LDAP standard email address attribute "mail" for the email address.
What is the best way to remove all members from a group in AD?
The help for ldapmodify doesn't seem to support the ability to remove all members of a group.
I found an example of removing a particular dn using:
ldapmodify -h 127.0.0.1 -D "cn=admin" -w xxxx -f modStaticGrp.ldif
Where modStaticGrp.ldif contains:
dn: cn=group1, o=Your Company
changetype: modify
delete: member
member: cn=jeff, cn=tim, o=Your Company
I would like to have a bash script with ldapmodify running a command that removes all the users in a group. What would be the best way to accomplish this?
ldapmodify doesn't seem to support the ability to remove all members of a group.
Yes it does. See man ldapmodify and man ldif. Just truncate your LDIF after the delete: member line. If no attribute values to delete are supplied, the entire attribute is deleted.
I have two domains. One production. One testing. There is no trust between the two.
I can import all user objects and group objects successfully using ldifde commands. When I attempt to also include group members in my export/import I can't seem to successfully import.
Here are the variations I have tried:
Attempt 1:
file format:
dn: CN=Group-name,OU=Groups,OU=Managed,DC=dev,DC=net
changetype: add
member: CN=USER1,OU=Users,OU=Managed,DC=dev,DC=net
member: CN=USER2,OU=Users,OU=Managed,DC=dev,DC=net
ldifde command used:
ldifde -i -k -f groupexp12072012-test.ldf -v
output:
Connecting to "DC"
Logging in as current user using SSPI
Importing directory from file "groupexp12072012-test.ldf"
Loading entries
1: CN=Group-name,OU=Groups,OU=Managed,DC=dev,DC=net
Add error on line 1: Object Class Violation
The server side error is "The object class attribute must be specified."
0 entries modified successfully.
An error has occurred in the program
No log files were written. In order to generate a log file, please
specify the log file path via the -j option.
Attempt 2:
Added in the correct objectClass to my ldifde import file:
file format:
dn: CN=Group-name,OU=Groups,OU=Managed,DC=dev,DC=net
changetype: add
objectClass: top
objectClass: group
member: CN=USER1,OU=Users,OU=Managed,DC=dev,DC=net
member: CN=USER2,OU=Users,OU=Managed,DC=dev,DC=net
ldifde command used:
ldifde -i -k -f groupexp12072012-test.ldf -v
output:
Connecting to "DC"
Logging in as current user using SSPI
Importing directory from file "groupexp12072012-test.ldf"
Loading entries
1: CN=Group-name,OU=Groups,OU=Managed,DC=dev,DC=net
Entry already exists, entry skipped
0 entries modified successfully.
The command has completed successfully
Attempt 3:
Deleted the existing group object and used the same command and format as "Attempt 2":
Connecting to "DC"
Logging in as current user using SSPI
Importing directory from file "groupexp12072012-test.ldf"
Loading entries
1: CN=Group-name,OU=Groups,OU=Managed,DC=dev,DC=net
Object does not exist, entry skipped
0 entries modified successfully.
So I'm stuck. Apparently 'ldifde' can be used to import group members - all my colleagues say it has never worked but I stumble upon MS articles that say otherwise;
http://social.technet.microsoft.com/Forums/nl/winserverDS/thread/089a3f3b-617f-4c66-a3fc-be543d97a612
Then I stumble on "5. LDIFDE doesn’t support changing Group Membership. You can use CSVDE or ADDUSERS.exe or DStools for Windows 2003 Editions." here:
http://support.microsoft.com/kb/555634
Am I going crazy for no reason - will I ever succeed using 'ldifde'?
edit: Yes, I was going crazy for no reason. One of my targeted users was actually in a different OU I was specifying for 'ldifde'. Because of this, 'ldifde' would just give up and not add any members to the group.
Here is a way to add users to an existing group (ldifde -i -k -f AddGrpMember.ldf -v
):
dn: CN=MonGrpSec,OU=MonOu,DC=dom,DC=fr
changeType: Modify
add: member
member: CN=jblanc,OU=MonOu,DC=dom,DC=fr
member: CN=Jean Paul Blanc,OU=MonOu,DC=dom,DC=fr
-
Here is a way to create a new group with members (ldifde -i -k -f NewGrpWithMember.ldf -v
):
dn: CN=NewGrpSec,OU=MonOu,DC=dom,DC=fr
changeType: Add
objectClass: top
objectClass: group
CN: NewGrpSec
member: CN=jblanc,OU=MonOu,DC=dom,DC=fr
member: CN=Jean Paul Blanc,OU=MonOu,DC=dom,DC=fr
ldifde import of group members fails if the group members do not exist, or the dn in the file does not match the dn of the target group.
For a few important groups in my test domain, I word to replace "member:" with the entire header to modify a group. That way any individual group member doesn't halt the rest of the group members from importing.
Simple find and replace
find: member:
replace with: -^p^pdn:CN=[groupname],OU=[ou name],OU=Domain Users,DC=TEST,DC=ORG^pchangetype: modify^padd:member^pmember:
Basically, add a "-" followed by a blank line, and then the header lines.