Internet Services Delta Manual for HP-UX 11i Version 1.6

19. cleaning-interval
20. key
21. server
22. trusted-keys
23. sig-validity-interval
An example of View (split DNS set-up) is as shown below:
view "internal" {
// This should match our internal networks
match-clients {10.0.0.0/8:};
//Provide recursive service to internal clients only
recursion yes;
//Provide a complete view of the example.com zone
// including addresses of internal hosts.
type master;
file "example-internal.db";
};
};
view "external" {
match-clients { any; };
// Refuse recursive service to external clients.
recursion no;
// Provide a restricted view of the example.com zone
// Containing only publicly accessible hosts.
zone "example.com" {
type master;
file "example-internal.db";
};
};
• forwarders
This option can be used to specify the IP addresses to be used for forwarding. The forwarding
facility can be used to create a large site-wide cache on a few servers, reducing traffic over
links to external nameservers. This facility also allows queries by servers that do not have
direct access to the Internet, but wish to look up exterior names. Forwarding occurs only on
those queries for which the server is not authoritative and does not have an answer in its
cache.
The forwarders option is specified in the /etc/named.conf file as:
[ forwarders { ip_addr [port ip_port] ;
[ ip_addr [port ip_port] ; ... ] }; ]
• allow-update
This option can be used to specify which hosts are allowed to submit Dynamic DNS updates
for master zones. By default, updates from all hosts are denied.
Chapter Overview 37