C#

DNS Query NS Records

See more DNS Examples

Shows how to perform a DNS query to retrieve NS records.

Note: This example requires Chilkat v9.5.0.96 or later.

C#

bool success = false;

Chilkat.Dns dns = new Chilkat.Dns();

Chilkat.JsonObject json = new Chilkat.JsonObject();
json.EmitCompact = false;

success = dns.Query("NS","x.com",json);
if (success == false) {
    Debug.WriteLine(dns.LastErrorText);
    return;
}

Debug.WriteLine(json.Emit());

//  Sample response.
//  Parsing code below..

//  {
//    "answer": {
//      "ns": [
//        {
//          "name": "x.com",
//          "ttl": 86400,
//          "domain": "alexia.ns.cloudflare.com"
//        },
//        {
//          "name": "x.com",
//          "ttl": 86400,
//          "domain": "tosana.ns.cloudflare.com"
//        }
//      ]
//    }
//  }

//  Use this online tool to generate parsing code from sample JSON: 
//  Generate Parsing Code from JSON

string name;
int ttl;
string domain;

int i = 0;
int count_i = json.SizeOfArray("answer.ns");
while (i < count_i) {
    json.I = i;
    name = json.StringOf("answer.ns[i].name");
    ttl = json.IntOf("answer.ns[i].ttl");
    domain = json.StringOf("answer.ns[i].domain");
    i = i + 1;
}