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The configuration file, named.conf, has a completely new syntax. The
configuration file in BIND 4.x was called named.boot.
The utility "named-bootconf.pl", written in Perl, available with the
package, can be used to convert 4.x (8.1.1) configuration files. The complete
path of this file in the installation is /BIND/PUB/bin/named-bootconf.pl.
See
Appendix D "Server Configuration Migration" for directions on running the
named-bootconf.pl utility.
The file named.conf provides configuration information about the
database, information for the DNS server program NAMED. The database
information is divided into zones. A zone will be either a domain (for
example, india.hp.com) or an IP network (for example,
4.10.15.IN-ADDR.ARPA. A DNS server needs both types of zones in order
to be able to resolve names to IP addresses, and IP addresses to names.
The named.conf configuration indicates to NAMED which zones it is
going to be a server for, whether or not the server is a master or a slave for
each zone, and points to the files where the database information is
maintained. When a slave zone is configured, the address of the master server
for that zone will also be included.
A DNS server which is the master for a zone is the one where the master copy
of the data is maintained. A DNS server which is a slave for a zone may keep a
copy of the data too, but will open a connection to the master server in order
to obtain updates. This update process is called a "zone transfer". A DNS
server may be both the master server for some zones, and a slave server for
others.
A template /BIND/PUB/etc/named.conf has been provided with the
installation of DNS BIND/iX. You can use this file, following the commented
instructions within it as a basis for your own
/BIND/PUB/etc/named.conf. Advanced users may need to refer to
Appendix B "BIND 8 Configuration File" for a complete list of directives
that can be configured for BIND 8. The following is the template
/BIND/PUB/etc/named.conf file:
options {
directory "/BIND/PUB/etc";
// The following is the IP address of the MPE/iX system that is
// running NAMED.
// YOU MUST CHANGE THIS TO BE YOUR OWN IP ADDRESS!
listen-on { nnn.nnn.nnn.nnn; ];
};
/*** List any servers here that you communicate with that are also
running BIND 8.1 or greater. Replace ALL OF THESE with your own
servers, if any. ***/
server nnn.nnn.nnn.nnn {
transfer-format many-answers;
};
// Defines the root. From ftp://rs/internic.net/domain/named.root.
zone "." {
type master;
file "zone.hint"
};
// DNS optimiation tricks for "special" addresses. You will need
// to edit all of these files to specify the hostname of your own
// nameserver and the e-mail address of the DNS maintainer.
zone "0.0.127.in-addr.arpa" {
type master;
file "zone.127.0.0";
};
zone "0.in-addr.arpa" {
type master;
file "zone.bogus.0";
};
zone "255.in-addr.arpa" {
type master;
file "zone .bogus.255";
};
// A master zone. Substitute one of your own zones here.
// Slave zones. Replace ALL OF THESE with your own.
zone "csy.hp.com" {
type slave;
file "zone.slave";
master { nnn.nnn.nnn.nnn; nnn.nnn.nnn.nnn; }
Configuring Master Zones
A sample configuration unit for a master zone is shown here:
Example:
zone "43.10.15.IN-ADDR.ARPA" {
type master;
file "zone.15.10.43";
};
The file zone.15.10.43 will have entries like:
IN SOA bindserver.india.hp.com. bind_admin.india.hp.com. (
104 ; Serial
10800 ; Refresh every 3 hours
3600 ; Retry every hour
604800 ; Expire after a week
86400 ) ; Minimum ttl of 1 day
IN NS bindserver.india.hp.com.
1 IN PTR m1.india.hp.com.
2 IN PTR m2.india.hp.com.
3 IN PTR m3.india.hp.com.
4 IN PTR m4.india.hp.com.
5 IN PTR m5.india.hp.com.
Configuring Slave Zones
A sample configuration unit for a slave zone is shown here:
zone "41.10.15.IN-ADDR.ARPA" {
type slave;
file "zone.15.10.41";
masters {
15.70.188.45;
};
};
The IP address of the server that is primary for that domain is specified in
the masters { } section of the configuration. There could be more than one
master for a given zone.
When the nameserver comes up, looking at this configuration, it makes a
connection with the nameserver running on 15.70.188.45 and does zone
transfer, if required. It also makes a local copy of this file.
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