Copyright (C) Internet Systems Consortium, Inc. ("ISC") See COPYRIGHT in the source root or http://isc.org/copyright.html for terms. The test setup for the DNSSEC tests has a secure root. ns1 is the root server. ns2 and ns3 are authoritative servers for the various test domains. ns4 is a caching-only server, configured with the correct trusted key for the root. ns5 is a caching-only server, configured with the an incorrect trusted key for the root. It is used for testing failure cases. ns6 is a caching-only server configured to use DLV. ns7 is used for checking non-cacheable answers.