014.01.40.4. Describe the traditional configuration file for DNS servers, /etc/resolv.conf, and explain its key elements, including the search line and nameserver entries.
Traditional configuration for DNS servers is /etc/resolv.conf. A typical example looks like this, where the ISP's name server addresses are 10.32.45.23 and 10.3.2.3.
search mydomain.example.com example.com
nameserver 10.32.45.23
nameserver 10.3.2.3
The search line defines rules for incomplete hostnames
Here the resolver library would try to lookup host.mydomain.example.com and host.example.com.
The traditional configuration file for DNS servers, /etc/resolv.conf, plays a crucial role. In a typical example, where the ISP's name server addresses are 10.32.45.23 and 10.3.2.3, the file includes:
search mydomain.example.com example.com
nameserver 10.32.45.23
nameserver 10.3.2.3
The search line defines rules for incomplete hostnames, allowing the resolver library to attempt lookups like host.mydomain.example.com and host.example.com for a more seamless DNS resolution.
