ldap
How to check a username/password combination?
LDAP supports a compare of userPassword. You send the password, the server does the compare and returns true or false. This is the not-requiring a login way to authenticate users.
LDAP query in python
While the accepted answer does in fact show a proper way to bind to an LDAP server I do feel it didn’t answer the question holistically. Here is what I ended up implementing to grab the mail and department of a user. This somewhat blends the required attributes from the original question. l = ldap.initialize(‘ldap://ldap.myserver.com:389’) … Read more
Using AD as authentication for Django
Here’s another more recent snippet (July 2008, updated Dec 2015): Authentication Against Active Directory (LDAP) over SSL
Ldap filter for attribute that may not exist
To return entries that contain a populated status attribute, use a present filter, for example, (status=*). To return entries that do not contain a status attribute, negate the present filter: (!(status=*)). If the server is unwilling to execute, check that the status attribute is indexed for equality and presence. If do not have access to … Read more
How to connect with Java into Active Directory
Here is a simple code that authenticate and make an LDAP search usin JNDI on a W2K3 : class TestAD { static DirContext ldapContext; public static void main (String[] args) throws NamingException { try { System.out.println(“Début du test Active Directory”); Hashtable<String, String> ldapEnv = new Hashtable<String, String>(11); ldapEnv.put(Context.INITIAL_CONTEXT_FACTORY, “com.sun.jndi.ldap.LdapCtxFactory”); //ldapEnv.put(Context.PROVIDER_URL, “ldap://societe.fr:389”); ldapEnv.put(Context.PROVIDER_URL, “ldap://dom.fr:389”); ldapEnv.put(Context.SECURITY_AUTHENTICATION, “simple”); … Read more
How do you authenticate against an Active Directory server using Spring Security?
I had the same banging-my-head-against-the-wall experience you did, and ended up writing a custom authentication provider that does an LDAP query against the Active Directory server. So my security-related beans are: <beans:bean id=”contextSource” class=”org.springframework.security.ldap.DefaultSpringSecurityContextSource”> <beans:constructor-arg value=”ldap://hostname.queso.com:389/” /> </beans:bean> <beans:bean id=”ldapAuthenticationProvider” class=”org.queso.ad.service.authentication.LdapAuthenticationProvider”> <beans:property name=”authenticator” ref=”ldapAuthenticator” /> <custom-authentication-provider /> </beans:bean> <beans:bean id=”ldapAuthenticator” class=”org.queso.ad.service.authentication.LdapAuthenticatorImpl”> <beans:property name=”contextFactory” ref=”contextSource” /> … Read more
using wildcards in LDAP search filters/queries
A filter argument with a trailing * can be evaluated almost instantaneously via an index lookup. A leading * implies a sequential search through the index, so it is O(N). It will take ages. I suggest you reconsider the requirement.
Is LDAP DN case insensitive?
LDAP DNs and all attributes are case-insensitive by default. It is possible to define an attribute as case-sensitive in the schema, but this is rare, and it is also possible to override the default comparison rules, but again this is rare.