DNS files

[Fred Martin_1]

Regarding the two files:

/etc/named.data/db.domain
/etc/named.data/db.192.168

I'm wondering if blank lines and/or comment lines can be used liberally throughout the files.

Also, must the data lines be in numerical or alphabetical order?

I'd like to section the files to do some logical organization, i.e. grouped by physical location etc.

[Pete Randall · Accepted solution]

Fred,

The file formats are specified in RFC1035:

http://rfc.net/rfc1035.html


Pete

[Geoff Wild]

Order doesn't really matter...

You can put comments in the named.conf file and in zone files...

For named.conf:

/* C style comment format needs opening and closing markers
** but allows multiple lines or */
/* single lines */
// C++ style comnents single line format no closing required
# PERL/SHELL style comments single lines no closing required

For zone files - anything on a line past a semi-colon ; is ignored IE:

$TTL 14400 ; 4 hours
168.192.in-addr.arpa IN SOA myserver.mydomain.com. dnsguy.mydomain.com. (
660505 ; serial
1800 ; refresh (30 minutes)
300 ; retry (5 minutes)
3600000 ; expire (5 weeks 6 days 16 hours)
604800 ; minimum (1 week)
)
$TTL 0 ; 0 seconds


Rgds...Geoff

[Fred Martin_1]

Thanks folks.