Perl

Resolve Domain to IP Address

See more DNS Examples

Demonstrates how to perform a DNS query to obtain A records for resolving a domain name to an IPv4 address. Perl

use chilkat();

$success = 0;

$dns = chilkat::CkDns->new();

$json = chilkat::CkJsonObject->new();
$json->put_EmitCompact(0);

$success = $dns->Query("A","microsoft.com",$json);
if ($success == 0) {
    print $dns->lastErrorText() . "\r\n";
    exit;
}

print $json->emit() . "\r\n";

# Sample response.
# Parsing code below..

# {
#   "answer": {
#     "a": [
#       {
#         "name": "microsoft.com",
#         "ttl": 1528,
#         "ipv4": "20.112.250.133"
#       },
#       {
#         "name": "microsoft.com",
#         "ttl": 1528,
#         "ipv4": "20.231.239.246"
#       },
#       {
#         "name": "microsoft.com",
#         "ttl": 1528,
#         "ipv4": "20.76.201.171"
#       },
#       {
#         "name": "microsoft.com",
#         "ttl": 1528,
#         "ipv4": "20.70.246.20"
#       },
#       {
#         "name": "microsoft.com",
#         "ttl": 1528,
#         "ipv4": "20.236.44.162"
#       }
#     ]
#   }
# }

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

$i = 0;
$count_i = $json->SizeOfArray("answer.a");
while ($i < $count_i) {
    $json->put_I($i);
    $name = $json->stringOf("answer.a[i].name");
    $ttl = $json->IntOf("answer.a[i].ttl");
    $ipv4 = $json->stringOf("answer.a[i].ipv4");
    $i = $i + 1;
}