On Mon, 2006-12-11 at 13:48 +0200, Dotan Cohen wrote:
> But I'm sure that the records themselves must get huge. Not the
> program, but the data.
No. There's not a lot of data in a record file, and it's generally only
your own authoritative data that's stored on disc (unless you configure
otherwise). Looked-up records are cached in RAM.
Here's an example record for an entire domain:
-------- begin example -------
$TTL 86400
@ IN SOA localhost root.lan.example.com (
42 ; serial
3H ; refresh
15M ; retry
1W ; expiry
1D ) ; minimum
IN NS localhost
A 192.168.1.2
MX 1 mail.lan.example.com.
andy A 192.168.1.10
caan CNAME roar
clock CNAME time
default CNAME www
finger CNAME server
ftp CNAME server
gateway CNAME router
gales A 192.168.1.2
gonzo A 192.168.1.11
hear A 192.168.1.3
imap CNAME mail
jabber CNAME server
-------- end example --------
The last 12 lines are the records for particular hosts in that domain,
and you can see that it's only a tiny bit of data per host.
--
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