Ruby

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. Ruby

require 'chilkat'

success = false

dns = Chilkat::CkDns.new()

json = Chilkat::CkJsonObject.new()
json.put_EmitCompact(false)

success = dns.Query("A","microsoft.com",json)
if (success == false)
    print dns.lastErrorText() + "\n";
    exit
end

print json.emit() + "\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
end