> What's so "nasty" about using ALIAS? The DNS server provide implements this differently, but the two "common" methods I know of is either aggressive caching

> What's so "nasty" about using ALIAS? The DNS server provide implements this differently, but the two "common" methods I know of is either aggressive caching or caching on request. In both cases the server becomes the client, breaks geoip, and create complexity where errors can easily slip in.