Specifications

Line 1: $TTL defines the standard TTL that applies to all entries here.
Line 2: ’Reverse lookup’ should be activated with this file for the network
192.168.1.0. Since the zone is called ’1.168.192.in-addr.arpa’ here, it is, of
course, undesirable to add this to the host name. Therefore, these are
all entered complete with domain and ending with ’.’. The rest corre-
sponds to the previous example described for world.cosmos.
Line 3–7: See the previous example for world.cosmos.
Line 9: This line also specifies the name server responsible for this zone.
This time, however, the name is entered completely with domain and
ending with ‘.’.
Line 11–13: These are the pointer records which are linked to an IP address
at the respective host name. Only the last part of the IP address is en-
tered at the beginning of the line missing the last ‘.’. Now, if the
zone is appended to this and the .in-addr.arpa is neglected, the entire
IP address will be backwards.
In this form, the zone files are usable both for BIND8 and BIND9. Zone
transfers between different versions should not normally be an issue.
For More Infor mation
Documentation on package bind8: file:/usr/share/doc/
packages/bind8/html/index.html.
A sample configuration can be found at:
/usr/share/doc/packages/bind8/sample-config
the man page for named (man 8 named) in which the relevant RFCs
are named and the man page for named.conf (man named.conf)
166 For More Information