> DNS is such a pain to troubleshoot personally I have a different experience - you can query each authoritative server directly to troubleshoot a problem (whi

> DNS is such a pain to troubleshoot personally I have a different experience - you can query each authoritative server directly to troubleshoot a problem (which makes it easier compare to systems when you have a single endpoint and cannot see beyond it). Poorly configured by ISP recursive servers though is a common pain - it is relatively easy to create and maintain a well working recursive caching DNS but it looks like ISP just don't care.