Server is unwilling to perform. LDAP in PHP

Question

I get this error always

Server is unwilling to perform

and my code is the next:

   echo "Checking ...";
    $username = $_POST["username"];
    $passwd = $_POST["passwd"];
    $host              = 'myhost.co.uk'; 
    $port              = 389; 
    $dn                = 'uid='.$username.',cn=nssproxy,ou=users,dc=co,dc=uk';

   // conexion a ldap

    $conn = ldap_connect( "ldap://".$host.":389") ;

    ldap_set_option($conn, LDAP_OPT_PROTOCOL_VERSION, 3);
    ldap_set_option($conn, LDAP_OPT_REFERRALS, 0);

    // match de usuario y password
    $bind = ldap_bind( $conn, $dn, $password );


    if ($bind){
        echo "OK";
    }
    else {
        echo "NO OK";
    }
    echo ldap_error($conn);

Why I have this error? I'm always testing with any user, this script return same error.

Thanks in advance.

Solution

So I searched Google for Server is unwilling to performand the first result says:

C.1.4. ldap_*: server is unwilling to perform

slapd will return an unwilling to perform error if the backend holding the target entry does not support the given operation.

The password backend is only willing to perform searches. It will return an unwilling to perform error for all other operations.

The shell backend is configurable and may support a limited subset of operations. Check for other errors indicating a shortage of resources required by the directory server. i.e. you may have a full disk etc

ldap_mod_replace() [function.ldap-mod-replace]: Modify: Server is unwilling to perform has some requirements as well

Comments

[Michael Plautz]

I just had a similar issue where LDAP through PHP, which was working just fine yesterday, all of a sudden stopped working today. The error I kept getting was "your browser doesn't have cookies enabled" (from MediaWiki), even though they were in deed enabled on my browser. I checked and realized my /var logical volume was 100% full. I cleared some space, restarted HTTPD, and everything was just fine.