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Re: Ldap filter to get group members

Hi guys...

Thanks for the reply ,

i tried many ldap filters according to the suggestion made by andrew..but i unable to get it work.. any idea  how write such a filter.

Thank You

On 15 May 2012 03:03, Andrew Findlay <andrew.findlay@skills-1st.co.uk> wrote:
On Mon, May 14, 2012 at 08:06:41PM +0530, dhanushka ranasinghe wrote:

> i have a LDAP server and its has a group called .
> cn=internal ou=group,dc=example,dc=com
> --users of this group is :
> uid=user1,ou=user,dc=example,dc=com
> uid=user2,ou=user,dc=example,dc=com

> i need to only to authenticate the users under cn=internal ....

I assume you mean "I only want to allow users of this group to access
some resource"

> This is what we are using
> (&(objectClass=groupOfNames)(memberOf=CN=internal,OU=group,DC=example,DC=com))
> seems like its not working ..
> what the LDAP search filter i need to use to get only the members of the cn=
> internal group  authenticated...

I think it would be best to use several LDAP operations rather than
trying to do everything in one go. For example:

1)      Search for user:
               base: ou=user,dc=example,dc=com
               filter: (&(objectclass=account)(uid=<username>))
       If the user exists, note the DN of the entry found.

2)      Authenticate user:
               Bind as the user DN using the user-supplied password
       If this fails, deny access.

3)      Re-bind as a system user (or anon if that has enough access)

4)      Check authorisation:
               Search base: CN=internal,OU=group,DC=example,DC=com
               Search scope: base
               Filter: (member=<user DN>)
               Return attributes: cn
       If this returns an entry then the user is in the authorisation
       group and should be allowed to use the resource. Otherwise,
       deny access.

|                 From Andrew Findlay, Skills 1st Ltd                 |
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