BIND name servers, particularly busy ones, can log a tremendous
volume of messages. Many administrators are so cowed by the quantity
of messages that they simply abandon trying to track them. Knowing
how to sift and sort the messages, as described in Recipes Section 10.4 to Section 10.9, can help you
recipes later in the chapter describe how to use
dig, the Swiss Army Knife of DNS query tools.
The latest versions of dig will trace name
resolution, send TSIG-signed queries and more, all with a few