Flowdock
new(config_info=nil) public

Creates a new DNS resolver.

config_info can be:

nil:Uses /etc/resolv.conf.
String:Path to a file using /etc/resolv.conf’s format.
Hash:Must contain :nameserver, :search and :ndots keys.

Example: 

  Resolv::DNS.new(:nameserver => ['210.251.121.21'],
                  :search => ['ruby-lang.org'],
                  :ndots => 1)
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