OpenView Network Node Manager: Designing and Implementing an Enterprise Solution

Sample DNS Configuration Files

The DNS resolver uses /etc/resolv.conf to determine the local subdomain, up to three name servers, and a search path (see Figure 2-2). The name server daemon named reads its configuration file /etc/ named.conf (or /etc/named.boot) to locate the directory (such as /var/ named) for the database files, as shown in Figure 2-4. Database files such as db.cache point to other name servers, as shown in Figure 2-5. The two main database record types are address and pointer. Address records contain the IP addresses of names in a subdomain (see Figure 2-6). Pointer records contain the names corresponding to IP addresses (see Figure 2-7).

Figure 2-2. /etc/resolv.conf.

The UNIX operating systems use the text file /etc/resolv.conf ...