LogonUser API and get the user Groups

network management functions are very useful function to integrate your software with the network services such directory services (LDAP) etc.
In my case i used the LogonUser API to check a valid user/password of a user against the AD, and than i used NetUserGetLocalGroups api to check a valid group to the specific user.
of course you can do it as well with the ADSI api , but i found this easier to use.
note:
your running process should have permission to get the user groups.

Yaniv T

LDAP error code

i used LDAP authentication via java , in case of wrong user name or password you get an exception of type AuthenticationException, as you guess in ldap Authentication there could be more than one reason ( not just wrong pwd or user) it could be account is locked , not allowed this time, etc.
i found a list that can help to understand the reason in case you need it:

525 - user not found
52e - invalid credentials
530 - not permitted to logon at this time
531 - not permitted to logon from this workstation
532 - password expired
533 - account disabled
701 - account expired
773 - user must reset password
775 - account locked

more details for the code above you can find here Active Directory LDAP Errors.

LDAP with java

i found very interesting articles and sample to deal with LDAP via java code .
one of the complete and best sample you can find here - This is sample program that show how to authenticate with for example a Windows Active Directory:
Active Directory LDAP and Java.

second there is a very good tutorial for JNDI & Ldap that you can find here:
Your guide to The JNDI Tutorial .

another good link with java/c#/c samples -> A Beginner's Guide to LDAP Development
a very good book you can find here LDAP-Programming-With-Java



And here is a tip to find all the ldap attributes:
To discover more LDAP attributes, go to the command prompt, type:
CSVDE -f Exportfile.csv. Then open Exportfile.csv with Excel.exe.
Alternatively, use ADSI Edit and right click the container objects.

enjoy