/* This is a BIND comment as in C */
// This is a BIND comment as in C++
# This is a BIND comment as in common Unix shells and perl
Comments may appear anywhere that whitespace may appear in a BIND configuration file.
C-style comments start with the two characters /*
(slash, star) and end with */ (star, slash). Because
they are completely delimited with these characters, they can be used
to comment only a portion of a line or to span multiple lines.
C-style comments cannot be nested. For example, the following is
not valid because the entire comment ends with the first
*/:
/* This is the start of a comment.
This is still part of the comment.
/* This is an incorrect attempt at nesting a comment. */
This is no longer in any comment. */
C++-style comments start with the two characters //
(slash, slash) and continue to the end of the physical line. They
cannot be continued across multiple physical lines; to have one
logical comment span multiple lines, each line must use the
// pair. For example:
// This is the start of a comment. The next line
// is a new comment, even though it is logically
// part of the previous comment.
Shell-style (or perl-style, if you prefer) comments start with the
character # (hash or pound or number or octothorpe or
whatever) and continue to the end of the physical line, like C++
comments.
# This is the start of a comment. The next line
# is a new comment, even though it is logically
# part of the previous comment.
WARNING: you cannot use the ;
(semicolon) character to start a comment such as you would in a zone
file. The semicolon indicates the end of a configuration statement,
so whatever follows it will be interpreted as the start of the next
statement.
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