Specifications

A
DNS — Domain Name Service
allow-query 127.0.0.1; 192.168.1/24; ; defines the networks from which
clients can post DNS requests. The /24 at the end is an abbreviated
expression for the netmask, in this case 255.255.255.0.
allow-transfer ! *; ; controls which hosts can request zone transfers. This
example cuts them off completely due to the ! *. Without this entry,
zone transfers can be requested anywhere without restrictions.
statistics-interval 0; In the absence of this entry, BIND8 generates several
lines of statistical information in /var/log/messages. Specifying
0 suppresses these completely. Otherwise the time in minutes can be
given here.
cleaning-interval 720; This option defines at which time intervals BIND8
clears its cache. This triggers an entry in /var/log/messages each time
it occurs. The time specification is in minutes. The default is 60 min-
utes.
interface-interval 0; BIND8 regularly searches the network interfaces for
new or no longer existing interfaces. If this value is set to 0, this will
not be carried out and BIND8 will only listen at the interfaces detected
at start-up. Otherwise, the interval can be defined in minutes. The de-
fault is 60 minutes.
notify no; no prevents other name servers from being informed when
changes are made to the zone data or when the name server is
restarted.
The Configuration Section “Logging”
What, how, and where archiving takes place can be extensively configured in
BIND8. Normally, the default settings should be sufficient. File 10 represents
the simplest form of such an entry and will completely suppress any logging:
logging {
category default { null; };
};
File 10: Entry to Suppress Logging
161SuSE Linux – Firewall on CD2