if the flag is left on, it prevents further caching

the resolution has to start from the root for zonecut resolution, otherwise it might stall resolution if the only good NS drops out of cache and only the bad remain

this allows list-like declaration of bound interfaces

e.g. net = { ‘127.0.0.1’, net.eth0 }

the cache can be setup declaratively with:

cache.size = 10 * MB

the cache storage backend can be changed with:

cache.storage = ‘lmdb://.'

module api can now store userdata, e.g. owner