DNS Configuration and Management Manual (G06.27+, H06.05+, J06.03+)

DNS Configuration on the NonStop Server

HP DNS Configuration and Management Manual—529432-003

3-24

Specifying Multiple Names in the Resolver by Using

Sections

Specifying Multiple Names in the Resolver by

Using Sections

The resolver configuration file is used by the resolver library to get the default local

domain name and the IP addresses of name servers to contact. The resolver

configuration file is named resolv.conf in OSS and RESCONF in Guardian, but the

syntax and usage is the same for both the environments.

In addition to the existing domain and name server directives, the following new

directives have been provided to be used in the resolver configuration file:

Name Server

Specifies the internet address of a Name Server in dot-notation format.

In addition to the ability to specify IPv4 addresses, you can now provide IPv6

addresses with the

Name Server directive.

Provides a search list for host name lookup

The default behavior provided by the

domain directive can be changed by listing

the desired domain search path following the

search keyword, with spaces or

tabs separating the names. Most resolver queries are attempted using each

component of the search path in turn until a match is found. The search list is

limited to six domains.

Example 3-4. Specifying a Different resolv.conf File Through an Application

putenv ("TCPIP_RESOLVER_NAME=/etc/dns/resolv.conf");

h = gethostbyname(argv[1]);

if(h==NULL) {

printf("%s: unknown host '%s'\n",argv[0],argv[1]);

exit(1);

}

Example 3-5. Specifying a Different resolv.conf File Through the OSS Shell

/etc/dns923> export

TCPIP_RESOLVER_NAME=’/etc/dns/resolv.conf’

/etc/dns923> set