{"id":198,"date":"2007-01-26T16:22:00","date_gmt":"2007-01-26T16:22:00","guid":{"rendered":"https:\/\/ahm.basfinans.com\/index.php\/2007\/01\/26\/authenticating-users-with-windows-active-directory-from-java\/"},"modified":"2007-01-26T16:22:00","modified_gmt":"2007-01-26T16:22:00","slug":"authenticating-users-with-windows-active-directory-from-java","status":"publish","type":"post","link":"https:\/\/ahm.basfinans.com\/index.php\/2007\/01\/26\/authenticating-users-with-windows-active-directory-from-java\/","title":{"rendered":"Authenticating Users with Windows Active Directory from Java"},"content":{"rendered":"

Authenticating Users with Windows Active Directory from Java<\/b><\/p>\n

Here is a sample code that works with me:<\/p>\n

<\/p>\n

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import java.util.*;
import javax.naming.*;
import javax.naming.directory.*;

public class Main {

 public static void main(String[] args) {

 try {
    Hashtable env = new Hashtable();
    env.put(Context.INITIAL_CONTEXT_FACTORY,
             \"com.sun.jndi.ldap.LdapCtxFactory\");
    env.put(Context.PROVIDER_URL,
             \"LDAP:\/\/my.ldap.server:389\"); \/\/replace with your server URL\/IP
             \/\/only DIGEST-MD5 works with our Windows Active Directory
    env.put(Context.SECURITY_AUTHENTICATION,
             \"DIGEST-MD5\"); \/\/No other SALS worked with me
    env.put(Context.SECURITY_PRINCIPAL,
            \"user1\"); \/\/ specify the username ONLY to let Microsoft Happy
    env.put(Context.SECURITY_CREDENTIALS, \"secret1\");   \/\/the password

    DirContext ctx = new InitialDirContext(env);

    ctx.close();

  } catch(NamingException ne) {
    System.out.println(\"Error authenticating user:\");
    System.out.println(ne.getMessage());
    return;
}

  \/\/if no exception, the user is already authenticated.
  System.out.println(\"OK, successfully authenticating user\");
}

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<\/pre>\n
I stripped comments to make the blog shorter.<\/p>\n
Resources Helped Me:<\/b><\/p>\n