LDAP Groups Performance

I am planning LDAP authentication for a portal and am looking at assign LDAP groups to portal roles to ease user administration because there will be a signifigant amount of users.
I've done this before with smaller amounts of users, but have heard concerns that with a large amount of user accounts, that authentication would take too long and would pose a problem. I don't know for sure if this is true and will be trying to test this out.
Would appreciate advice / experience / references if available.
Regards,
Tom

Hi Thomas,
I don't think this is a problem if directories are properly tuned.
Infact we connect to AD having 80k users and it works perfectly fine. But remember that your LDAP should be tuned properly and may be you can have indexes too.
Regards,
Piyush
PS: please mark useful answers.

Similar Messages

Can an email address be a member of an LDAP group even if it isn't associated with an object in the Directory Server?

Can an email address be a member of an LDAP group even if it isn't
associated with an object in the Directory Server?
<P>
General members of a group are the members defined in the
Directory Server. They are full-fledged members of the group who
may have a set of permissions associated with their membership,
a title, or other attributes. Mail-specific users are users who
are not full-fledged members of the group, but who receive mail
sent to the group. Mail-specific users need not be identified as
a user in the Directory Server--an email address is sufficient.
An example of this is a group of salespeople, all of whom are in
the group "North American Sales Team." They have access to a
sales-tracking database, on-line quota information, and
competitive information. The mail-specific users of this group
are the admins who support the members of the sales team, who need
to get the mail that goes out to the group, but don't need access
to the applications and information that the salespeople do.

Hey EllyK,
Welcome to the BlackBerry Support Community Forums.
Thanks for the question.
I would suggest performing this workaround and then try to login to BlackBerry Link:
Open BlackBerry World on the BlackBerry smartphone and sign in using the BlackBerry ID.
Connect the BlackBerry 10 smartphone to the computer.
Open BlackBerry Link
Sign in using the BlackBerry ID.
Let me know if the issue still persists.
Cheers.
-ViciousFerret
Come follow your BlackBerry Technical Team on Twitter! @BlackBerryHelp
Be sure to click Like! for those who have helped you.
Click Accept as Solution for posts that have solved your issue(s)!

LDAP Groups Authorization

Hi,
I have read some of the forum threads about LDAP Group Authorization - I remain confused. Here's the problem I am trying to solve.
I was successfull in setting my Authentication to "Based on authentication scheme from gallery:Existing Login Page: Use LDAP Directory Credentials" -
That works fine, But I would not like all users in my OID LDAP directory to log into my application- Which is why I have created a group for the user I want to include in my OID directory.
Now at the " Builder->Application...->Security->Authorization Schemes->
I have created an Authorization Scheme as "PL/SQL Function returing a booloean" .
My Scheme Source(Identify Query or PL/SQL) is as follows and is set to "once Per session"
return wwv_flow_ldap.is_member
(:APP_USER,
null,
'cn=users,dc=wellesley,dc=edu',
'jadeland.wellesley.edu',
'389',
'wcd_HTMLDB',
'cn=portal.040323.1220,cn=Groups, dc=wellesley,dc=edu');
where in my LDAP directory, 'wcd_HTMLDB' is the subgroup under group "portal.040323.1220" -
I have included 3 users in the group 'wcd_HTMLDB' .
Still the login page allows all LDAP user ( and not just the 3 from the 'wcd_HTMLDB' group.
Where did I go wrong -?
What 's the proper way to authorise only LDAP users in a group ?
Any help would be really appreciated.
Thanks .

Indira,
The public synonym (and grant execute) must be created after that package is compiled which can happen after catldap is run in your database. This is only a problem if catldap has not been run before HTML DB is installed. That's described in the flows/doc/ldap.html file in the distribution directory (not very prominently, we know).
When you initially attached the authorization scheme to your login page and it wouldn't let you in, the reason is that it was using the value of APP_USER to drive your lookup function. But when the login page is rendered, APP_USER is null because you haven't logged in yet. So a user-based authorization scheme on a login page can never work.
When you changed the ldap username edit function the way you did, you achieved the goal of preventing an unauthorized user from using the login page to authenticate. Looks like the way it's set up is to give unauthorized users an authentication error, which is a little misleading (saying their credentials are invalid when in fact they are valid but they aren't authorized to use your application), but if it suits your purpose, great. You should consider that if you change the authentication method to, say Single Sign-On, you'll then want to use authorization schemes to keep unauthorized users out. So the authorization scheme that you first set about using would be fine in that case, so long as you adjust the code to allow for visits to public pages prior to authentication (v('APP_USER') = 'HTMLDB_PUBLIC_USER'). However, you'd want to attach that scheme to the application itself (Edit Application Attributes->Authorization) so it fires on every page. Evaluating a scheme like that on every page view rather that once per session probably works best, even better if you cache the result of the evaluation yourself for performance reasons, e.g., set an application item to some value the first time the authenticated user passes the ldap membership test, then using that item as an 'already passed' flag for subsequent invocations.
Finally, I assume you are using the built-in ldap_dnprep function because you need to replace '.' with '_' in the username value entered by the user. If that is not your requirement, let's talk.
Scott

Ldap group lookups very slow

We are currently testing Solaris 11 on one of our servers. We are encountering the problem that
ldap group lookups are very slow. This didn't occur under Solaris 10. The ldap information is held
in Active Directory with all unix information held in a relatively small separate branch, except for passwd information,
which is held in the main very large part of AD (using the same user object for unix as used for the equivalent Windows user but
with the added unix posixAccount attributes). What appears to be happening is that the first search is very
quick when it accesses posixGroup information from the unix branch but it then tries to perform a memberOf
search which must be using the passwd search base which then searches the whole of the AD and it is this
part which is extremely slow. Is there any way of disabling the memberOf search ?
The following snoop information is an example of the problem search ....
LDAP: Operation *[APPL 3: Search Request]
LDAP: [Base Object]
LDAP: ou=uol,dc=livad,dc=liv,dc=ac,dc=
LDAP: uk
LDAP: [Scope]
LDAP: wholeSubtree
LDAP: [DerefAliases]
LDAP: derefAlways
LDAP: [SizeLimit]
LDAP: [TimeLimit]
LDAP: [TypesOnly]
LDAP: Extensible Match *[9]
LDAP: MatchingRule [1]
LDAP: 1.2.840.113556.1.4.1941
LDAP: Type [2]
LDAP: memberOf
LDAP: MatchValue [3]
LDAP: CN=eme,OU=Group,OU=Unix,OU=UOL
LDAP: ,DC=livad,DC=liv,DC=ac,DC=uk
LDAP: dnAttributes [4]
LDAP: *[Sequence]
LDAP: [OctetString]
LDAP: sAMAccountName
LDAP: [OctetString]
LDAP: objectClass
LDAP: Controls List *[0]
LDAP: *[Control]
LDAP: [LDAP OID]
LDAP: 1.2.840.113556.1.4.473
LDAP: [Criticality]
LDAP: [Control value]
LDAP: *[Control]
LDAP: [LDAP OID]
LDAP: 2.16.840.1.113730.3.4.9
LDAP: [Criticality]
LDAP: [Control value]
This is our ldap_client_file
NS_LDAP_FILE_VERSION= 2.0
NS_LDAP_AUTH= simple
NS_LDAP_OBJECTCLASSMAP= shadow:shadowAccount=user
NS_LDAP_OBJECTCLASSMAP= passwd:posixAccount=user
NS_LDAP_OBJECTCLASSMAP= group:posixGroup=group
NS_LDAP_SEARCH_BASEDN= ou=unix,ou=uol,dc=livad,dc=liv,dc=ac,dc=uk
NS_LDAP_CREDENTIAL_LEVEL= proxy
NS_LDAP_SERVICE_SEARCH_DESC= passwd:ou=uol,dc=livad,dc=liv,dc=ac,dc=uk?sub
NS_LDAP_SERVICE_SEARCH_DESC= group:ou=Group,ou=unix,ou=uol,dc=livad,dc=liv,dc=ac,dc=uk?sub
NS_LDAP_BIND_TIME= 5
NS_LDAP_SEARCH_SCOPE= sub
NS_LDAP_SERVERS= bhdc01.livad.liv.ac.uk
NS_LDAP_ATTRIBUTEMAP= passwd:gecos=cn
NS_LDAP_ATTRIBUTEMAP= passwd:uid=sAMAccountName
NS_LDAP_ATTRIBUTEMAP= passwd:homedirectory=unixHomeDirectory
NS_LDAP_ATTRIBUTEMAP= shadow:uid=sAMAccountName
NS_LDAP_SEARCH_TIME= 8
NS_LDAP_CACHETTL= 0

Are you testing on the same machine?? or you're testing the SQL*Plus on the database machine directly??
Tony

Retrieve nested LDAP groups independent from the network env. (five different approaches)

Hi all,
I want to retrieve a list of nested LDAP groups per user from the Active Directory. I have been searching google for half a day now, but I'm still not sure what approach to use. I have the following requirements:
* The script/program must run in different network environments (I can't be sure if there is a global catelog or AD DS or AD LDS, etc). I will write my own program.
* The membership info will be used in combination with directory ACL's and must be as complete as possible (global groups, universal groups, local groups, perhaps different domains). Distribution groups are not really necessary, because they are not used in
the directory ACL's.
* It would be nice to support other LDAP implementations than Active Directory using the same code, but that not a hard requirement. I could use another approach to support a different LDAP.
Now I have figured out five possible approaches (info comes from different sites, please correct me if I'm wrong):
1) tokengroups attribute:
- The attribute contains Univeral groups of the forest, global groups from the local domain, domain local groups from the local domain (assuming native mode) and local groups from the local machine.
- Returns a list of SIDs which will have to be translated to group names
- The tokenGroups attribute exists on both AD DS and AD LDS
- For AD DS, the tokenGroups attribute is not present if no GC server is available to evaluate the transitive reverse memberships.
- quote from site "Now that I have had a chance to test it though I can definitely say that tokenGroups WILL get the Universal groups from the other domains even if is NOT a GC. I just did it in my test lab."
- Token Groups cannot be retrieved if no Global Catalog is present to retrieve the transitive reverse memberships.
2) tokenGroupsGlobalAndUniversal
- A subset of the tokenGroups attribute. Only the global and universal group SIDs are included.
- If you want consistent results, read tokenGroupsGlobalAndUniversal that will return the same result no matter which DC you are connected to. However, it will not include local groups.
- other source says "tokenGroups will give you all the security groups this user belongs to, including nested groups and domain users, users, etc tokenGroupsGlobalAndUniversal will include everything from tokenGroups AND distribution groups". Not
sure if this is correct, I think it doesn't contain local groups.
- The tokenGroupsGlobalAndUniversal attribute exists on AD DS but not on AD LDS.
3) LDAP_MATCHING_RULE_IN_CHAIN / 1.2.840.113556.1.4.1941
- Use a recursive search query which returns all nested groups for user at once.
- Returns all groups except for the primary group
- It's a fast approach, see performance test from Richard Mueller:
http://social.technet.microsoft.com/Forums/fr-FR/f238d2b0-a1d7-48e8-8a60-542e7ccfa2e8/recursive-retrieval-of-all-ad-group-memberships-of-a-user?forum=ITCG
- It only works on Active Directory, not for other LDAP implementations
4) Recursive retrieval of the memberOf attribute
- Retrieves all groups except the primary group. (also local groups from other domains??)
- works for all LDAP implementations
- executes a lot of queries to the LDAP, especially if you want to scan all users/groups (perhaps limited on OU, but still)
5) Store memberOf attribute in local database and calculate the nested groups using recursive queries to the local database
- No heavy load to the LDAP
- Needs space to store the user/group info locally (embedded Derby database perhaps)
- Performs fast since the queries are executed locally
- Works for all LDAP implementations
My thoughts on these different approaches:
* appreach 1) I understand that the tokengroups attribute is not present if no GC server is available. In how many network environments is this the case? This option won't work because I want to support different network environments.
* approach 2) The tokenGroupsGlobalAndUniversal attribute exists on AD DS but not on AD LDS. Same here, in how many network environments is this the case? I don't think I can rely on this approach.
* approach 3) Seems to be a good option. How will it perform compared to approach 5 (local recursive queries)? Won't work for other LDAP implementations
* approach 4) I don't think I want to execute that many queries to the LDAP. I can limit the scan on OU, but still companies can have thousands of users and groups.
* approach 5) Perhaps the best approach. I want to store user/group info locally for fast filtering / reporting (only group DNs, user names, databse id's and membership info as id-id pairs). I only need the memberOf attribute of users and groups, recursive
loops are done locally. It will work for all LDAP implementations.
What do you guys think? I'm not a network admin, but a programmer, so I'm no expert in network setups and when to use AD DS or AD LDS. The thing is I want to use this code at different customers without knowing their network setup (except for the domain name(s),
LDAP host/port and bind user to connect to LDAP).
Thanks a lot!
Paul

I want to write a tool that can answer questions like "what users from group ABC have delete permission in all the (sub)directories of server MyDataServer?". This results in a list of directories and users and includes nested group membership. So it's about
effective permissions. That's why I want all information in a SQL database so I can answer these questions with a single query in milliseconds. Otherwise, in order to answer these questions, I would have to get all members from group ABC and determine the
nested groups for all these members (which can be thousands) for every report. Using a SQL database I can retrieve this information once a night for all the members.
But I guess I will use the LDAP_MATCHING_RULE_IN_CHAIN syntax which gives me all nested groups for a member and should work for all AD installations from W2K3 SP2 and higher. When I want to support other LDAPs I will use another method for that specific
LDAP.
Again - note that this question has nothing to do with LDAP or AD. It just asks what group has permissions on what resources.
I really think you would do well to spend time understanding the NTFS and its security along with how we sue security in Windows. By assuming this has something to do with AD you are making it a bigger issue than needed. AD is a repository for
accounts and trusts and manages authentication and security group membership. All file security is managed by the OS that hosts the files and not by AD. Users are not normally granted access to resources through direct inclusion in the DACL but
are given access through membership in one or more groups. Loading AD into a SQLL database will not help you.
¯\_(ツ)_/¯

Error while adding LDAP group

Hi, I configured LDAP authentication on BOXI R2 SP3 on IIS. The settings are as given below.
To change a setting, click on the value to start the LDAP Configuration Wizard. I have replaced few entries with XXXX and YYYY due to security.
LDAP Hosts: nccXXX.XXX.YYYY.XX.YY:636
LDAP Server Type: Novell eDirectory
Base LDAP Distinguished Name: ou=XXXXX,dc=YY
LDAP Server Administration Distinguished Name: cn=XXX,o=YYYYY
LDAP Referral Distinguished Name: ""
Maximum Referral Hops: 0
SSL Type: Server Authentication
Server Side SSL Strength: Always accept server certificate
Single Sign On Type: None
When I add any new group then its not added and I get below error message in the Logging directory for WCA.
Error: 2009-08-24 14:56:30, Thread:161, WriteData::_Flush catch unexcepted exception, source: System.Web, message: Specified argument was out of the range of valid values.
Parameter name: offset, stack: at System.Web.HttpResponseStream.Write(Byte[] buffer, Int32 offset, Int32 count)
at BusinessObjects.Enterprise.WebComponentAdapter.WriteData._Flush(IntPtr handle)
Can anyone help to find if LDAP is configured correctly before adding group?
Thanks,

Resolved. It was due to wrong LDAP group given to me.
Thanks,

Mapping LDAP Groups to SAP Roles

Hi there,
i am trying to build up a synchron usermanagement with a LDAP-Server between EP, Web AS Java and Web AS ABAP.
My thought is to administrate the users in the LDAP-Directory. The users will be assigned to groups.
In EP and Web AS Java its no problem to assign these groups to roles and then just change the Users in the LDAP-Group and reach a synchron usermanagement.
In Web AS ABAP it seems impossible to assign roles to groups.
<b>The question is, is it possible to map ldap groups with the ldap connector of the web AS ABAP to Roles in an ABAP System?</b>
Or is there another way to administrate users in different systems?
Thanks alot for your answers,
stefan

Hi
in this case u have to use the concept of central user administration. use the following links
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/events/asug-biti-03/cua with sap webas, ldap and third party software
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/events/sap-teched-04/user management and authorizations overview.pdf
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/nw/dotnet/integration of sap central user administration into microsoft active directory.pdf
hope this helps u to get fair bit of idea
don,t forget to give points
With regards
subrato kundu

LDAP groups and WebLogic Roles - Urgent ( weblogic 6.1 sp1, iPLanet 5.1)

I have 2 questions and these are very urgent :-
1. Where the mapping can be defined between LDAP groups and WebLogic Roles. I have
2 groups in iPLanet :- Contarctors and employees and I have 2 security roles in weblogic:-
contractactors and employess. How do I map LDAP group contractors to weblogic security
Role contractors? Similarly for employees ?
2. I have not defined contarctors and employeees under People container in IPlanet.
e.g. The RDN for contractor is
uid=1234,ou=dir,dc=orams,dc=com
Can I still use the defualt security realm of weblogic (the WebLogic Security Realm
under People ) OR I have to write my own custom code ?
3. I am planning to use Roles insetad of groups to manage the logical grouping in
iPLant. Can I still use the groups in WebLogic security realm ( in the configuratin
parameters ?)
This is very urgent ....so if any of you can throw any hints that will be greatly
appreciated.
--Sunita

Hi Ariel,
The driver is bundled with the product in WLS 6.1sp1. you don't have to
download any additional driver. Use it as you normally would only thing to
remember is if you are trying to write standalone java code then you have to
have weblogic.jar in your classpath. For the rest of the info follow the wls
docs for 6.1
HTH
sree
"Ariel" <[email protected]> wrote in message
news:3bb4a643$[email protected]..
We want to connect our Weblogic 6.1 sp1 server to a SQLServer 2000 db. We
downloaded the JDriver from bea.com, but all the istructions that camewith
it are for WLserver 5.1.
What has to be done to do this with 6.1 sp1?
Thanks,
Ariel

RSA authentication with LDAP group mapping

Greetings,
I'm trying to set up RSA authentication with LDAP group mapping with ACS Release 4.2(1) Build 15 Patch 3.
The problem I'm having is that my users are in multiple OU's on our AD tree. When I only put our base DN in for User Directory Subtree on ACS, it fails with a "External DB reports about an error condition" error. If I add an OU in front of it, then it will work fine.
As far as I know, you can only use one LDAP configuration with RSA.
Any thoughts on this?

@Tarik
I believe your suggestion is the only way i'm going to get this to work. I ran across a similar method just this week that I have been working on.
I was hoping for dynamic mapping with the original method, but I haven't found any way to make it happen. I have resorted to creating a Radius profile on the RSA appliance for each access group I need. Using the Class attribute, I then pass the desired Group name to the ACS, i.e. OU=Admins, and that seems to work.
Thankfully, I have a small group of users that I am attempting to map. I will only map those who need elevated priviliges to narrow down how many profiles I will have to manually create. Likewise, our Account Admin will have to determine who gets assigned a particular access group.
I would still prefer to do this dynamically.
Scott

Cannot Add user to CMC Group when they are a member of LDAP group

On PreProduction Server CMC
Softerra LDAP browser used to verify user is a member of LDAP group
User does not show as a member of that group in the CMC
Cannot add user to LDAP group showing in CMC, the same group shows the member in LDAP browser
On Production Server CMC
For kicks I logged into the CMC on Production and I found the user is correctly showing as a member of the Group
Why doesn't the groups in CMC show what is actually showing in the LDAP browser?

Hi,
Check if you have also mapped in both servers the same groups. It might be that there are some groups missing in the Pre-prod.
Also, try restarting the CMS. I have seen similar issues that are solved after forcing the recreation of the graph.
If after the restart you still can't see the groups, check the mapping on the LDAP server. It might be that both servers do not use the same attribute mappings.
Regards,
Julian

Webcenter dicussion forum - Ldap Group Integration with JSSO

Hi,
We want to implement LDAP Group integration for the authorization purposes in
webcenter Jive Disucussions deployed in our IAS 10.1.3.2 application server.
Though jive provides support for the same, yet the JIve documentation says
that we need to implement the JIve's LDAP User authentication steps in order
to leverage LDAP Groups integration. In case of Webcenter if we use Java SSO
for the authentication purpose, we need opt for the 'Default' in the Jive
Admin's authentication page instead of LDAP settings. Opting for 'Default'
scheme doesn't allow us to configure the LDAP group settings. We are not able
find any documentation for LDAP Group Integration along with Java SSO. Could
provide us the steps required for the same? Or has anyone tried the same?
Thanks and Regards,
ABhijit

Hi Abhijit,
You can ignore 'Default', and implement your own user authentication mechanism, which can include LDAP group settings. You will have to follow:
- OC4J security documentation for using Java SSO in your own implementation (I think this is the right link - confirm the version numbers - http://download.oracle.com/docs/cd/B32110_01/web.1013/b28957/javasso.htm#BABEJFDI)
- Jive documentation for implementing user authentication
Navneet.

Managing LDAP groups and roles through SUN IDM

Hi Guys,
We have a requirement to build the following functionality in our Sun IDM tool.
1.     Ability to create/manage Static LDAP group.
2.     Ability to create/manage filtered LDAP group.
3.     Ability to create/manage Static LDAP roles.
4.     Ability to create/manage filtered LDAP roles.
Can anyone let us know any pointers as to how to accomplish this or any ideas for the path to follow for this.
Any reply will be appreciated.

http://myidm.blogspot.com/2009/06/how-to-create-groups-in-ldap-or-active.html

Ldap groups

Hi,
I have 5 roles and each role selection should provision user to a seperate ldap group + a default ldap group.
How can i achieve that...
dn: cn=group1,ou=people,o=domain,o=com
+ dn:cn=mail,ou=people,o=domain,o=com
Where cn=mail is common for every role selection. I have a variable temp which generates group values based on role selection and i am mapping it in identity template. i think that will provision the user to one group. How can i provision the user to the default group.
Any ideas?

Hi,
Here is one suggestion:
Edit each the role using the admin pages under the Roles Tab, you will see
a section called Assigned Resources, where you can set resource attribute values.
Here you can override the ldapGroups attribute for your ldap resource.
ldapGroups is a List, so you want to add a specific <s>cn=...</s>
string to the existing ldapGroups list. This seems to work well and no xml editing required!
The effect of this will be that different dns will get added to the ldapGroups
variable, depending on which role gets assigned to the user.
Does that make sense? hope this helps.
As for the default dn (cn=mail...), you can either do it the same way (but call a rule rather that replicating the dn 5 times for each resource), or put that into the userform
that gets invoked.
I'm not sure if I explained this well enough, I hope this helps,
John I

How to verify user LDAP group membership

Hi,
we are attempting to determine if a user is a member of a specific LDAP group in our directory and if the user is a member it should return TRUE else FALSE (this is done by defining the LDAP attribute 'CN' (property) which returns a result 'CN=<UserName> or returns 'getting 0 entries'. The query we have is
(&(cn=<username>)(memberOf=CN=<groupname>,DC=domain,DC=com)).
Any pointers on how to do this ?
Thank you.

You could do a couple of things...
1) Install dsquery (add remote AD tools to your box) and run something like
dsquery group -u <user name>
Username would be their login name, yours is "swaupadh" for example. This would return a listing of all the groups they are in and you could regex through that output for the group you are looking for. Use either the Execute Powershell or Execute Windows Command activity here.
2) Use powershell functions and powershell capability to check for group membership, something like this:
function Get-GroupMembership($DN,$group){
$objEntry = [adsi]("LDAP://"+$DN)
$objEntry.memberOf | where { $_ -match $group}
//EXAMPLE CALL
Get-GroupMembership "Cn=kazun,dc=contoso,dc=com" "Backup Operators"
Then you can regex through the output for the "True" or "False" word and run with that.
Either should get you what you want.

Portal Roles added to the LDAP group is not showing up for users

Hello expert,
I have implemented SSO for Enterprise Portal and MS LDAP. It is working fine but when I assigned roles to the LDAP group instead of UME group, they are not taking effect when I refresh the browser. My service account that I set up in the keytab file is a read only account for the LDAP. Is there some permission issue that I have to do to be able to add Portal roles or groups to LDAP groups?

Hi,
By default the LDAP integration configuration file is readonly.
In this case, is not possible to modify data in LDAP.
You must to connect in read-write mode; and I think that, furthermore, you need to configure SSL between Portal and LDAP in order to use read-write mode.
regards,

LDAP Groups Performance

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