drahkar

This plugin allows WordPress to authenticate users against an Active Directory. 
Developed to be compatible with current Active Directory releases as well as allow 
for Enterprise level Forest Deployments by allowing you to enter custom BaseDNs.
If you have bugs, suggestions, desires or requirements that you would like to see added 
to this, please come to the plugin page and submit them there so I can keep track 
of them as they are found and resolved.
This plugin is redeveloped off of <a href="https://wordpress.org/extend/plugins/simple-ldap-authentication/" rel="ugc">Simple LDAP 
Authentication</a>.
<h4>How to use</h4>
You can use this plugin in a few different ways.
<ol>
<li>
You can create WordPress accounts which match the names of your Active Directory accounts, and create these users from within the WordPress Users panel. Only the users you create in WordPress will be able to log in.
</li>
<li>
You can tick a checkbox so that anyone who can authenticate via Active Directory can log on. A WordPress account will be automatically created for the user if one does not already exist, with the default user role.
</li>
<li>
You can list the names of Active Directory groups who you want to allow to log on to WordPress. For each group in Active Directory, you can specify a corresponding WordPress user role.
</li>
</ol>
You can also combine the above however you like.

Simple AD Authentication

Authenticates users through Active Directory.

Alex1602

Having a single login for every service is a must in large organizations. This plugin allows you to integrate WordPress with LDAP for each individual site. You can create different base dn’s for every site and still have only one list of users.
First of all this plugin is based upon the <a href="https://wordpress.org/plugins/simple-ldap-login/installation/" rel="ugc">simple LDAP Login</a> I made some changes which I think are handy.
When you want to manage multiple single wordpress installations, password management becomes crucial. When someone’s password has been cracked you would have to change it everywhere wouldn’t it be simpler to just edit it on one place.
<h4>Feature request</h4>
Do you have an idea to make this plugin better, please let me know leave a message here or email me alex[at]alex-dekker.nl.
<h4>Donate?</h4>
If you want to donate please email me.

LDAP-Integration

Having a single login is a must in large organizations. This plugin allows you to integrate WordPress with LDAP for each site.

Simple AD Authentication vs LDAP-Integration