check if custom domains valid

gistfile1.rb

num_ok = 0

users = User.where(:custom_domain => /\S/)
users.each do |u|
  begin
    records = Net::DNS::Resolver.start(u.custom_domain).answer
  rescue Net::DNS::Resolver::NoResponseError
    records = []
  end
  
  record_found = records.any?{ |record|
    (record.is_a?(Net::DNS::RR::A) && record.address.to_s == '50.16.219.219') ||
    (record.is_a?(Net::DNS::RR::CNAME) && record.cname == "#{u.username}.jux.com")
  }
  
  if record_found
    puts "ok:\t#{u.custom_domain}"
    num_ok += 1
  else
    puts "fail:\t#{u.custom_domain}\t#{records.inspect}"
  end
end

"#{num_ok}/#{users.size(true)}"