JAAS, JGSS Kerberos and windows 2000 newbie question

Question

Hi
I have setup a Kerberos server on windows 2000, now i want to write code in java to authenticate and authorize user using Kerberos , I know I have to use JAAS, JGSS,
is there a how to document to setup a client machine, like setup krb4.ini file and other security files so i can use java to authorize and authenticate, i am using j2sdk1.4.2
I have following code
GSSManager manager = GSSManager.getInstance();
               Oid krb5Mechanism = new Oid("1.2.840.113554.1.2.2");
               Oid krb5PrincipalNameType = new Oid("1.2.840.113554.1.2.2.1");
               // Identify who the client wishes to be
               GSSName userName = manager.createName("test02EIM", GSSName.NT_USER_NAME);
               // Identify the name of the server. This uses a Kerberos specific
               // name format.
               GSSName serverName = manager.createName("krbsvr400/[email protected]",
                                                                 krb5PrincipalNameType);
          System.out.println("server name " +serverName.getStringNameType());
               // Acquire credentials for the user
               GSSCredential userCreds = manager.createCredential(userName,
                                                                 GSSCredential.DEFAULT_LIFETIME,
                                                                 krb5Mechanism,
                                                                 GSSCredential.INITIATE_ONLY);
               // Instantiate and initialize a security context that will be
               // established with the server
               GSSContext context = manager.createContext(serverName,
                                                                      krb5Mechanism,
                                                                      userCreds,
                                                                      GSSContext.DEFAULT_LIFETIME);
and krb5.ini file looks like below
[libdefaults]
default_realm = GL1AMR.PFIZER1.TEST
default_tgs_enctypes = des-cbc-crc
default_tkt_enctypes = des-cbc-crc
forwardable = true
proxiable = true
[realms]
GL1AMR.PFIZER1.TEST= {
kdc = gl1mopsamrdc01.gl1amr.pfizer1.test:88
admin_server = gl1mopsamrdc03.gl1amr.pfizer1.test
default_domain = gl1amr.pfizer1.test
[domain_realm]
.gl1amr.pfizer1.test = GL1AMR.PFIZER1.TEST
gl1amr.pfizer1.testm = GL1AMR.PFIZER1.TEST
[login]
krb4_convert = true
krb4_get_tickets = true
i get following error
SSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos Ticket)
     at sun.security.jgss.krb5.Krb5InitCredential.getInstance(Krb5InitCredential.java:143)
     at sun.security.jgss.krb5.Krb5MechFactory.getCredentialElement(Krb5MechFactory.java:70)
     at sun.security.jgss.GSSManagerImpl.getCredentialElement(GSSManagerImpl.java:149)
     at sun.security.jgss.GSSCredentialImpl.add(GSSCredentialImpl.java:334)
     at sun.security.jgss.GSSCredentialImpl.<init>(GSSCredentialImpl.java:44)
     at sun.security.jgss.GSSManagerImpl.createCredential(GSSManagerImpl.java:102)
     at com.pfizer.maps.sso.TestGSS.useGSS(TestGSS.java:41)
     at com.pfizer.maps.sso.TestGSS.main(TestGSS.java:59)
what am i missing

Answer 1

My JAVA FILE having the code as follows , when i run this code iam geeting the Folowing error
Error
D:\Ramesh_Dump\KerbersTools>java GSSAPI
GSSException: No valid credentials provided (Mechanism level: Failed to find any
Kerberos Ticket)
at sun.security.jgss.krb5.Krb5InitCredential.getInstance(Krb5InitCredent
ial.java:133)
at sun.security.jgss.krb5.Krb5MechFactory.getCredentialElement(Krb5MechF
actory.java:72)
at sun.security.jgss.GSSManagerImpl.getCredentialElement(GSSManagerImpl.
java:149)
at sun.security.jgss.GSSCredentialImpl.add(GSSCredentialImpl.java:389)
at sun.security.jgss.GSSCredentialImpl.<init>(GSSCredentialImpl.java:60)
at sun.security.jgss.GSSCredentialImpl.<init>(GSSCredentialImpl.java:37)
at sun.security.jgss.GSSManagerImpl.createCredential(GSSManagerImpl.java
:96)
at sun.security.jgss.GSSContextImpl.initSecContext(GSSContextImpl.java:1
78)
at sun.security.jgss.GSSContextImpl.initSecContext(GSSContextImpl.java:1
58)
at com.sun.security.sasl.gsskerb.GssKrb5Client.evaluateChallenge(GssKrb5
Client.java:155)
at com.sun.jndi.ldap.sasl.LdapSasl.saslBind(LdapSasl.java:105)
at com.sun.jndi.ldap.LdapClient.authenticate(LdapClient.java:214)
at com.sun.jndi.ldap.LdapCtx.connect(LdapCtx.java:2637)
at com.sun.jndi.ldap.LdapCtx.<init>(LdapCtx.java:283)
at com.sun.jndi.ldap.LdapCtxFactory.getUsingURL(LdapCtxFactory.java:175)
at com.sun.jndi.ldap.LdapCtxFactory.getUsingURLs(LdapCtxFactory.java:193
at com.sun.jndi.ldap.LdapCtxFactory.getLdapCtxInstance(LdapCtxFactory.ja
va:136)
at com.sun.jndi.ldap.LdapCtxFactory.getInitialContext(LdapCtxFactory.jav
a:66)
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:6
67)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:247
at javax.naming.InitialContext.init(InitialContext.java:223)
at javax.naming.ldap.InitialLdapContext.<init>(InitialLdapContext.java:1
34)
at GSSAPI.main(GSSAPI.java:34)
Problem searching directory: javax.naming.AuthenticationException: GSSAPI [Root
exception is javax.security.sasl.SaslException: GSS initiate failed [Caused by G
SSException: No valid credentials provided]]
JAVA CODE
import java.util.Hashtable;
import javax.naming.ldap.*;
import javax.naming.directory.*;
import javax.naming.*;
import java.util.*;
import java.util.Calendar.*;
import java.text.*;
public class GSSAPI {
     * @param args
     public static void main(String[] args) {
     Hashtable env = new Hashtable();
     String adminName = "[email protected]";//"[email protected]";
     String adminPassword = "Password12";
     String ldapURL = "ldap://172.20.55.97:389/";
     env.put(Context.INITIAL_CONTEXT_FACTORY,"com.sun.jndi.ldap.LdapCtxFactory");
     //set security credentials, note using simple cleartext authentication
     env.put(Context.SECURITY_AUTHENTICATION,"GSSAPI");
     //env.put(Context.SECURITY_PRINCIPAL,adminName);
     //env.put(Context.SECURITY_CREDENTIALS,adminPassword);
     //env.put("javax.security.sasl.server.authentication","true");
     //connect to my domain controller
     env.put(Context.PROVIDER_URL,ldapURL);
     try {
          //Create the initial directory context
          LdapContext ctx = new InitialLdapContext(env,null);
          //lets get the domain lockout duration policy
          Attributes attrs = ctx.getAttributes("dc=globalv,dc=com");
          //System.out.println("test arttr"+attrs.get(""));
          System.out.println("Lockout policy for " + attrs.get("distinguishedName").get());
          System.out.println("Duration: " + attrs.get("lockoutDuration").get());
          System.out.println("Threshold: " + attrs.get("lockoutThreshold").get());
          long lockoutDuration = Long.parseLong(attrs.get("lockoutDuration").get().toString());
          //Create the search controls           
          SearchControls searchCtls = new SearchControls();
          //Specify the attributes to return
          String returnedAtts[]={"sn","givenName","mail","lockoutTime"};
          searchCtls.setReturningAttributes(returnedAtts);
          //Specify the search scope
          searchCtls.setSearchScope(SearchControls.SUBTREE_SCOPE);
          //Create the correct LDAP search filter
          //Win32 file time is based from 1/1/1601
          //Java date/time is based from 1/1/1970
          /*GregorianCalendar Win32Epoch = new GregorianCalendar(1601,Calendar.JANUARY,1);
          GregorianCalendar Today = new GregorianCalendar();
          long Win32Date = Win32Epoch.getTimeInMillis();
          long TodaysDate = Today.getTimeInMillis();
          long TimeSinceWin32Epoch = TodaysDate - Win32Date;
          long lockoutDate = (TimeSinceWin32Epoch * 10000) + lockoutDuration;
          System.out.println("Lockout (Long): " + lockoutDate);*/
          //System.out.println("Lockout (Date): " + DisplayWin32Date(lockoutDate));
          //String searchFilter = "(&(objectClass=user)(lockoutTime>=" + lockoutDate + "))";
          String searchFilter = "(objectclass=user)";
          //Specify the Base for the search
          String searchBase = "dc=globalv,dc=com";
          //initialize counter to total the results
          int totalResults = 0;
          //Search for objects using the filter
          NamingEnumeration answer = ctx.search(searchBase, searchFilter, searchCtls);
          //Loop through the search results
          while (answer.hasMoreElements()) {
               SearchResult sr = (SearchResult)answer.next();
               totalResults++;
               System.out.println(">>>" + sr.getName());
               // Print out some of the attributes, catch the exception if the attributes have no values
               attrs = sr.getAttributes();
               if (attrs != null) {
                    try {
                         System.out.println(" name: " + attrs.get("givenName").get() + " " + attrs.get("sn").get());
                         System.out.println(" mail: " + attrs.get("mail").get());
                         System.out.println(" locked: " + attrs.get("lockoutTime").get().toString());
                         //System.out.println(" locked: " + DisplayWin32Date(attrs.get("lockoutTime").get().toString()));
                    catch (NullPointerException e)     {
                         System.err.println("Problem listing attributes: " + e);
//          System.out.println("Total results: " + totalResults);
          ctx.close();
     catch (NamingException e) {
          System.err.println("Problem searching directory: " + e);
import java.util.Hashtable;
import javax.naming.ldap.*;
import javax.naming.directory.*;
import javax.naming.*;
import java.util.*;
import java.util.Calendar.*;
import java.text.*;
public class GSSAPI {
     * @param args
     public static void main(String[] args) {
     Hashtable env = new Hashtable();
     String adminName = "[email protected]";//"[email protected]";
     String adminPassword = "Password12";
     String ldapURL = "ldap://172.20.55.97:389/";
     env.put(Context.INITIAL_CONTEXT_FACTORY,"com.sun.jndi.ldap.LdapCtxFactory");
     //set security credentials, note using simple cleartext authentication
     env.put(Context.SECURITY_AUTHENTICATION,"GSSAPI");
     //env.put(Context.SECURITY_PRINCIPAL,adminName);
     //env.put(Context.SECURITY_CREDENTIALS,adminPassword);
     //env.put("javax.security.sasl.server.authentication","true");
     //connect to my domain controller
     env.put(Context.PROVIDER_URL,ldapURL);
     try {
          //Create the initial directory context
          LdapContext ctx = new InitialLdapContext(env,null);
          //lets get the domain lockout duration policy
          Attributes attrs = ctx.getAttributes("dc=globalv,dc=com");
          //System.out.println("test arttr"+attrs.get(""));
          System.out.println("Lockout policy for " + attrs.get("distinguishedName").get());
          System.out.println("Duration: " + attrs.get("lockoutDuration").get());
          System.out.println("Threshold: " + attrs.get("lockoutThreshold").get());
          long lockoutDuration = Long.parseLong(attrs.get("lockoutDuration").get().toString());
          //Create the search controls           
          SearchControls searchCtls = new SearchControls();
          //Specify the attributes to return
          String returnedAtts[]={"sn","givenName","mail","lockoutTime"};
          searchCtls.setReturningAttributes(returnedAtts);
          //Specify the search scope
          searchCtls.setSearchScope(SearchControls.SUBTREE_SCOPE);
          //Create the correct LDAP search filter
          //Win32 file time is based from 1/1/1601
          //Java date/time is based from 1/1/1970
          /*GregorianCalendar Win32Epoch = new GregorianCalendar(1601,Calendar.JANUARY,1);
          GregorianCalendar Today = new GregorianCalendar();
          long Win32Date = Win32Epoch.getTimeInMillis();
          long TodaysDate = Today.getTimeInMillis();
          long TimeSinceWin32Epoch = TodaysDate - Win32Date;
          long lockoutDate = (TimeSinceWin32Epoch * 10000) + lockoutDuration;
          System.out.println("Lockout (Long): " + lockoutDate);*/
          //System.out.println("Lockout (Date): " + DisplayWin32Date(lockoutDate));
          //String searchFilter = "(&(objectClass=user)(lockoutTime>=" + lockoutDate + "))";
          String searchFilter = "(objectclass=user)";
          //Specify the Base for the search
          String searchBase = "dc=globalv,dc=com";
          //initialize counter to total the results
          int totalResults = 0;
          //Search for objects using the filter
          NamingEnumeration answer = ctx.search(searchBase, searchFilter, searchCtls);
          //Loop through the search results
          while (answer.hasMoreElements()) {
               SearchResult sr = (SearchResult)answer.next();
               totalResults++;
               System.out.println(">>>" + sr.getName());
               // Print out some of the attributes, catch the exception if the attributes have no values
               attrs = sr.getAttributes();
               if (attrs != null) {
                    try {
                         System.out.println(" name: " + attrs.get("givenName").get() + " " + attrs.get("sn").get());
                         System.out.println(" mail: " + attrs.get("mail").get());
                         System.out.println(" locked: " + attrs.get("lockoutTime").get().toString());
                         //System.out.println(" locked: " + DisplayWin32Date(attrs.get("lockoutTime").get().toString()));
                    catch (NullPointerException e)     {
                         System.err.println("Problem listing attributes: " + e);
//          System.out.println("Total results: " + totalResults);
          ctx.close();
     catch (NamingException e) {
          System.err.println("Problem searching directory: " + e);
}