There are entirely new areas of configuration, such as access control lists and categorized logging. Many options that previously applied to all zones can now be used selectively. These features, plus a consideration of future configuration needs led to the creation of a new configuration file format. A BIND 8 configuration consists of statements and comments. Statements end with a semicolon.
Many statements contain a block of substatements, which are also terminated with a semicolon.
Comments The BIND 8 comment syntax allows for comments to appear anywhere that whitespace may appear in a BIND configuration file.