# ownCloud Administrators Manual

# Miscellaneous

The remaining parameters are listed below.

Parameter | Format | Description
Open SSL | ‘openssl’ => array( //’config’ => ‘/absolute/location/of/openssl.cnf’, ), |
User Backends | ‘user_backends’=>array( array( ‘class’=>’OC_User_IMAP’, ‘arguments’=>array(‘{imap.gmail.com:993/imap/ssl}INBOX’), ), ), | It is possible to configure additional user backends in ownCloud. The “External user Support” (user_external) app provides the following backends: IMAP (OC_User_IMAP), SMB (OC_User_SMB), FTP (OC_User_FTP).
CSP Policy | “custom_csp_policy” => “default-src ‘self’; script-src ‘self’ ‘unsafe-eval’; style-src ‘self’ ‘unsafe-inline’; frame-src *; img-src *; font-src ‘self’ data:; media-src *”, |
X Frame | “xframe_restriction” => true, | XFrame-restriction is a header which prevents browsers from showing the site inside an iframe. This may be used to prevent clickjacking.
Mem Cache | “memcached_server” => array(‘localhost’, 11211), | Server details for one or more memcached servers to use for memory caching. Memcache is only used if other memory cache options (xcache, apc, apcu) are not available.
Force SSL | “forcessl” => false, | If the admin checks “Enforce HTTPS” in the Admin page of the ownCloud WebUI. This will be set to true indicating that only HTTPS may be used to access this instance of ownCloud. HTTP requests will be denied.
Black List | “blacklisted_files” => array(‘.htaccess’), | Files listed in this array will not be uploaded to ownCloud. It should be noted that wildcards are not supported in this array. The configured must be exact file names to be blocked. If wildcards are required, use the ownCloud firewall.