Quick Post via Twitter: #Quad9’S secondary #DNS server is at: 149.112.112.112 so no need to also use 9.9.9.9 for secondary Great article (not from SN): https://t.co/N0GLo6fVty #qp #infosec SN 640: More News & @sggrc’s #SecurityNow https://t.co/uCtMnrHHVo https://t.co/YVxImF5aYG