Get email server : DNS « Network « Ruby

1. Ruby
2. Network
3. DNS

Get email server

require 'resolv'

dns = Resolv::DNS.new
domain = "oreilly.com"
dns.each_resource(domain, Resolv::DNS::Resource::IN::MX) do |mail_server|
  puts mail_server.exchange
end
# smtp1.oreilly.com
# smtp2.oreilly.com
==
Get name server

require 'resolv'

dns = Resolv::DNS.new

dns.each_resource(domain, Resolv::DNS::Resource::IN::NS) do |nameserver|
  puts nameserver.name
end
# a.auth-ns.sonic.net
# b.auth-ns.sonic.net
# c.auth-ns.sonic.net
# ns.oreilly.com

 

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