vhost your_vhost {
    # security for host to allow or deny clients.
    # @see https://github.com/ossrs/srs/issues/211   
    security {
        # whether enable the security for vhost.
        # default: off
        enabled         on;
        # the security list, each item format as:
        #       allow|deny    publish|play    all|<ip>
        # for example:
        #       allow           publish     all;
        #       deny            publish     all;
        #       allow           publish     127.0.0.1;
        #       deny            publish     127.0.0.1;
        #       allow           play        all;
        #       deny            play        all;
        #       allow           play        127.0.0.1;
        #       deny            play        127.0.0.1;
        # SRS apply the following simple strategies one by one:
        #       1. allow all if security disabled.
        #       2. default to deny all when security enabled.
        #       3. allow if matches allow strategy.
        #       4. deny if matches deny strategy.
        allow           play        all;
        allow           publish     all;
    }
}