ruby multiple connections and dns queries

http = Net::HTTP.new("hostname", 80)
 http.open_timeout = 300
 http.read_timeout = 300
 
 pagereq = lambda {
     http.request(Net::HTTP::Get.new(page, {"User-Agent" => "Mozilla/5.0"})).body }
 
 some_conditions.to_a.each do |n|
 
     page = "startpage"+n.to_s
 
     pagereq.call.scan(/criteria1/).each do |m|
         page = "/"+m.to_s
         puts pagereq.call.scan(/criteria2/)
     end
 
 end
 

I use this template to collect links or something else from sites. It produce DNS resolving on each connection and this is not good.

What I interest in. Resolve hostname one time, make connection, make all operations, close connection.

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