anchor.diff:      OZDomain = ?config(oz_domain, Config),
   
       Maximum = 2,
  -    set_dns_config(Config, ns_max_entries, Maximum),
  -    set_dns_config(Config, ns_min_entries, 1), % the basic case
  +    set_env(Config, dns_ns_max_entries, Maximum),
  +    set_env(Config, dns_ns_min_entries, 1), % the basic case
   
       % force dns update
       ?assertEqual(ok, oz_test_utils:call_oz(Config,
  
positive.code:     OZDomain = ?config(oz_domain, Config),
  
      Records = [
          {txt, static_txt_records,
              [{<<"txt">>, <<"txt-value">>}],
              {"txt." ++ OZDomain, [["txt-value"]]}},
          {a, static_a_records,
              [{<<"a">>, ?PROVIDER_IPS1}], {"a." ++ OZDomain, ?PROVIDER_IPS1}},
          {mx, static_mx_records,
              [{<<"mx">>, <<"mx-value">>, 10}],
              {"mx." ++ OZDomain, [{10, "mx-value"}]}
              },
          {cname, static_cname_records,
              [{<<"cname">>, <<"cname-value">>}],
              {"cname." ++ OZDomain, ["cname-value"]}
          },
          {ns, static_ns_records,
              [{<<"ns">>, [<<"ns1-value">>, <<"ns2-value">>]}],
              {"ns."++OZDomain, ["ns1-value", "ns2-value"]}}
      ],
  
      lists:foreach(fun({_, Env, Entries, _}) ->
          set_dns_config(Config, Env, Entries)
      end, Records),
      ?assertEqual(ok, oz_test_utils:call_oz(Config,
          node_manager_plugin, reconcile_dns_config, [])),
  
negative.code:         Config, ProviderId, SubdomainBin, ProviderIPs1),
  
      % subdomain is set as static entry statically
      set_env(Config, dns_static_a_records, [{SubdomainBin, StaticIPs}]),
  
      % DNS update is sent
      ?assertEqual(ok, oz_test_utils:call_oz(Config,
  