Utiliser le module auth_ldap.

Le .htaccess qui va bien:

<Files soumission.php>
  AuthType Basic
  AuthName "Accès réservé: login/password de l'Ensi de Bourges"
  AuthLDAPEnabled on
  AuthLDAPURL ldap://linuxpdc.ensi-bourges.fr/dc=ensi-bourges,dc=fr
  AuthLDAPAuthoritative on
  require valid-user
</Files>

Doc : http://www.ac-creteil.fr/reseaux/systemes/linux/lamp/tp-apache2-ldap.html

Utiliser le module authnz_ldap.

<Files soumission.php>
  AuthType Basic
  AuthName "Accès réservé"
  AuthBasicProvider ldap
  AuthLDAPURL ldap://ldap.example.com/dc=example,dc=com
  AuthLDAPBindDN uid=apache,ou=sysaccounts,dc=example,dc=com
  AuthLDAPBindPassword mypassword
  AuthLDAPRemoteUserIsDN off
  require ldap-filter allowedServices=monitoring
  #require valid-user
</Files>

        <Location />
                AuthType ldap
                AuthType Basic
                AuthName "Admin Only"
                AuthBasicProvider ldap
                AuthLDAPURL ldap://127.0.0.1/o=example
                AuthLDAPBindDN uid=apache,ou=sysaccounts,o=example
                AuthLDAPBindPassword secret
                AuthLDAPRemoteUserIsDN off
                require valid-user
        </Location>

require ldap-filter allowedServices=myservice

Avec la commande ProxyPass et ProxyPassReverse :

<VirtualHost *>
  ServerAdmin root@sds-project.fr
  ServerName webcam.sds-project.fr
  
  <Proxy *>
    AuthType Basic
    AuthName "Acces authentifie LDAP"
    AuthBasicProvider ldap
    AuthLDAPURL ldap://localhost/dc=sds-project,dc=fr
    AuthLDAPRemoteUserIsDN off
    require ldap-filter &(uid=*)
    
    Order deny,allow
    Allow from all
  </Proxy>
  
  DocumentRoot /var/www/
  RewriteEngine On
  ProxyPass / http://172.30.3.65/
  ProxyPassReverse / http://172.30.3.65/
</VirtualHost>