anchor.diff:            assert "example.com" in server.succeed("dig SOA @localhost -p 5333 bit")
   
         with subtest("bit. zone forwarding works"):
  +          server.wait_for_unit("pdns-recursor")
             assert "1.2.3.4" in server.succeed("host test.bit")
       '';
   })
  
positive.code:       identity.address    = "1.0.0.1";
      };
  
      services.pdns-recursor = {
        enable = true;
        dns.allowFrom = [ "127.0.0.0/8" ];
        resolveNamecoin = true;
      };
  
      environment.systemPackages = [ pkgs.dnsutils ];
  
    };
  
    testScript =
  
negative.code:   };
  
    nodes.server = { ... }: {
      networking.nameservers = [ "::1" ];
  
      services.namecoind.rpc = {
        address = "::1";
        user = "namecoin";
        password = "secret";
        port = 8332;
  