Nuno Quiterio

Hello to all,

Since 4 years that i'm using LDAP in my intranet to authenticate the users with active directory. Since 2 weeks that (and i don't know why) this code and connection is not working so well. Sometimes the connection don't start and i don't have permissions. If i restart the TOmcat (not always) the authentication starts well but again goes down.

One thing is that i have two Domain COntrollers and one has a problem and we have to use the intranet Server as a Domain Controller... But on my laptop (not a domain controller) i'm having also the same things.

I debug the code and i receive the following error message "[Root exception is java.net.ConnectException: Connection timed out: connect", i search and i see one thing in one forum saying to add to the hosts file the ip of the intranet server plus FDQN and the server name

Ex: 192.168.1.1 test.dominio.com test

After this i start to work well and all the authentication was running but now again... I'm completly blind because i don't have any clue....


Sorry, i don't know if this is the right forum...

Thanks in advanced,

Nuno

This is my code:


public class LDAPLogin { protected String ATTRIBUTE_FOR_USER = "sAMAccountName"; public Attributes authenticateUser(String username, String password, String _domain, String host, String dn) { String returnedAtts[] ={ "sn", "givenName"}; String searchFilter = "(&(objectClass=user)(" + ATTRIBUTE_FOR_USER + "=" + username + "))"; //Create the search controls SearchControls searchCtls = new SearchControls(); searchCtls.setReturningAttributes(returnedAtts); //Specify the search scope searchCtls.setSearchScope(SearchControls.SUBTREE_SCOPE); String searchBase = dn; Hashtable environment = new Hashtable(); environment.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory"); //Using starndard Port, check your instalation environment.put(Context.PROVIDER_URL, "ldap://" + host + ":389"); environment.put(Context.SECURITY_AUTHENTICATION, "simple"); environment.put(Context.SECURITY_PRINCIPAL, username + "@" + _domain); environment.put(Context.SECURITY_CREDENTIALS, password); LdapContext ctxGC = null; try { ctxGC = new InitialLdapContext(environment, null); // Search for objects in the GC using the filter NamingEnumeration answer = ctxGC.search(searchBase, searchFilter, searchCtls); while (answer.hasMoreElements()) { SearchResult sr = (SearchResult)answer.next(); Attributes attrs = sr.getAttributes(); if (attrs != null) { ctxGC.close(); return attrs; } } } catch (NamingException e) { System.out.println(username+" não tem permissões de acesso!"); //e.printStackTrace(); } return null; } }