NAME¶

header - modifies the header for responses.

DESCRIPTION¶

header ensures that the flags are in the desired state for responses. The modifications are made transparently for the client.

SYNTAX¶

header {


    ACTION FLAGS...


    ACTION FLAGS...
}

•

ACTION defines the state for DNS message header flags. Actions are evaluated in the order they are defined so last one has the most precedence. Allowed values are:

•

FLAGS are the DNS header flags that will be modified. Current supported flags include:

EXAMPLES¶

Make sure recursive available ra flag is set in all the responses:

. {


    header {


        set ra


    }
}

Make sure "recursion available" ra and "authoritative answer" aa flags are set and "recursion desired" is cleared in all responses:

. {


    header {


        set ra aa


        clear rd


    }
}