new

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.

:nameserver_port can be used to specify port number of nameserver address.

The value of :nameserver should be an address string or an array of address strings.

• :nameserver => '8.8.8.8'

• :nameserver => ['8.8.8.8', '8.8.4.4']

The value of :nameserver_port should be an array of pair of nameserver address and port number.

• :nameserver_port => [['8.8.8.8', 53], ['8.8.4.4', 53]]

Example:

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