Classic ASP

DNS Query SOA Records

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

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

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Classic ASP

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
success = 0

set dns = Server.CreateObject("Chilkat.Dns")

set json = Server.CreateObject("Chilkat.JsonObject")
json.EmitCompact = 0

success = dns.Query("SOA","x.com",json)
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( dns.LastErrorText) & "</pre>"
    Response.End
End If

Response.Write "<pre>" & Server.HTMLEncode( json.Emit()) & "</pre>"

' Sample response.
' Parsing code below..

' {
'   "answer": {
'     "soa": [
'       {
'         "name": "x.com",
'         "ttl": 1800,
'         "mname": "alexia.ns.cloudflare.com",
'         "rname": "dns.cloudflare.com",
'         "serial": -1971124188,
'         "refresh": 10000,
'         "retry": 2400,
'         "expire": 604800,
'         "minttl": 1800
'       }
'     ]
'   }
' }

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

i = 0
count_i = json.SizeOfArray("answer.soa")
Do While i < count_i
    json.I = i
    name = json.StringOf("answer.soa[i].name")
    ttl = json.IntOf("answer.soa[i].ttl")
    mname = json.StringOf("answer.soa[i].mname")
    rname = json.StringOf("answer.soa[i].rname")
    serial = json.IntOf("answer.soa[i].serial")
    refresh = json.IntOf("answer.soa[i].refresh")
    retry = json.IntOf("answer.soa[i].retry")
    expire = json.IntOf("answer.soa[i].expire")
    minttl = json.IntOf("answer.soa[i].minttl")
    i = i + 1
Loop

%>
</body>
</html>