Now I have 2 nodes mysql/memcached and nginx/php, How can I connect to memcached?

How can I connect to memcached from nginx/php server?

I tried using the private IP that I use for Mysql, but can't login into my forum.

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I mean here:

Code:

// Cache
$config['cache'] = array(
    'enabled'                      => true,
    'cacheSessions'                => true,
    'frontend'                     => 'Core',
    'frontendOptions'              => array(
        'caching'                  => true,
        'cache_id_prefix'          => 'xf_',
        'automatic_serialization'  => true,
        'lifetime'                 => 0),
    'backend'                      => 'Libmemcached',
    'backendOptions'               => array(
        'servers'                  => array(
            array(
                'host'             => 'localhost',
                'port'             => 11211,
                'weight'           => 1
            )
        )
    )
);
// End Cache

Instead of localhost, I want to use memcached on other node.

 

Or use the current private IP?

 

Nice, it works great now