So I got everything working with .htaccess and AD/LDAP authentication. Just add LDAPVerifyServerCert Off to the httpd config to let Apache authenticate against an AD server with a self-signed certificate (without dealing with the annoyance of putting the cert on each Apache server).

With that piece of the puzzle largely solved, I moved on to another: how will users change their passwords (which are all stored in Active Directory)? For users running Windows this is pretty trivial — they can do it right in Windows when they’re logged into the domain. But what about Linux users? I figured the easiest thing to do would be to make a web form to do this. The user would login (with the http/LDAP auth I previously setup) and the form would ask for their password (twice) and update it in Active Directory. Sounds pretty simple to me. I think if this were OpenLDAP it probably would be, but being AD, it’s not.

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