Thank you Brad, a former tech who a long time ago managed a previous employer's (ISP) DNS infrastructure for about 16 years (BIND and djbDNS [yes]), thank you f

Thank you Brad, a former tech who a long time ago managed a previous employer's (ISP) DNS infrastructure for about 16 years (BIND and djbDNS [yes]), thank you for this post. Trying to explain these points to other staff members over, and over, and over, and over has been a complete ball-ache in my life.