>Try > ldd /usr/sbin/httpd > >Look for the ldap library. the ldap library is: libldap-2.3.so.0 I try what say http://httpd.apache.org/docs/2.2/mod/mod_ldap.html about OpenLDAP SDK and I 've several error: Invalid command 'AuthLDAPEnabled' LDAPTrustedClientCert not allowed here (I put it between <Directory "/var/www/html">... </Directory>) Invalid command 'AuthLDAPAuthoritative' My httpd.conf is : LDAPTrustedGlobalCert CA_DER /etc/httpd/conf/CAcertificat.der LDAPTrustedGlobalCert CA_BASE64 /etc/httpd/conf/cacertificat.pem (it's the same that CAcertificat.der but in pem format) LDAPTrustedClientCert CERT_BASE64 /etc/httpd/conf/servcert.pem LDAPTrustedClientCert KEY_BASE64 /etc/httpd/conf/servkey.pem <Directory "/var/www/html" > AuthBasicProvider ldap AuthzLDAPAuthoritative off AuthLDAPURL ldaps://*.*.*.*/dc=*,dc=*?uid?sub require valid-user AuthName "bienvenue" </Directory> and it doesn't work.. _________________________________________________________________ MSN Hotmail sur i-mode? : envoyez et recevez des e-mails depuis votre t?l?phone portable ! http://www.msn.fr/hotmailimode/