# File lib/fog/compute/openstack/models/server.rb, line 173
        def private_ip_addresses
          rfc1918_regexp = /(^10\.|^172\.1[6-9]\.|^172\.2[0-9]\.|^172.3[0-1]\.|^192\.168\.)/
          almost_private = ip_addresses - public_ip_addresses - floating_ip_addresses
          almost_private.select { |ip| rfc1918_regexp.match ip }
        end