DNS and BIND, 4th Edition by Paul Albitz and Cricket Liu Here's a key to the markup: [page-number]: serious technical mistake {page-number}: minor technical mistake : important language/formatting problem (page-number): language change or minor formatting problem ?page-number?: reader question or request for clarification Here are the changes made in the 7/01 reprint: (400) 4th paragraph: "The flags tells us a bit more about the response." should read: "The flags tell us a bit more about the response." [525] The third zone statement should read: zone "_sites.fx.movie.edu" { type master; file "db._sites.fx.movie.edu"; allow-update { dc; };x }; The fourth zone statement should read: zone "_msdcs.fx.movie.edu" { type master; file "db._msdcs.fx.movie.edu"; allow-update { dc; }; check-names ignore; };