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SPDX-License-Identifier: MPL-2.0

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system test for recursion limits

ns1  -- root server
ans2 -- for example.org: delegate to ns1.(n+1).example.org for all n, up to the
                         value specified in ans.limit (or forever if limit is 0)
ns3  -- resolver under test
ans4 -- for ns*.example.com: return address records.
ans7 -- "victim" server