DNS Troubleshooting Where to start? Understanding the "flow" of DNS traffic View Details Outgoing "flow" The first step: glibc The Name Service Switch (nsswitch) /etc/resolv.conf Testing domain queries and application quirks View Details Incoming "flow" The DNS nameserver(s) receiving the query Why run your own nameserver? View Details The BIND (named) DNS server The Basic Necessities Master/Slave server configurations for redundancy Using RNDC commands and forcing transfer receiving from a slave nameserver side View Details