librenms-librenms/html/includes/graphs/vserver/auth.inc.php

<?php

if (is_numeric($vars['id'])) {
    // $auth= TRUE;
    $vserver = dbFetchRow('SELECT * FROM `loadbalancer_vservers` AS I, `devices` AS D WHERE I.classmap_id = ? AND I.device_id = D.device_id', array($vars['id']));

    if (is_numeric($vserver['device_id']) && ($auth || device_permitted($vserver['device_id']))) {
        $device = device_by_id_cache($vserver['device_id']);

        $rrd_filename = rrd_name($device['hostname'], array('vserver', $vserver['classmap_id']));

        $title  = generate_device_link($device);
        $title .= ' :: Serverfarm :: '.htmlentities($vserver['classmap_id']);
        $auth   = true;
    }
}