Linux Hw

What kind of server repond to recursive queries ? how does this server work ?
A DNS servers that is setup with to preform recursive queries or an SQL server
What kind of dns record is likely to be returned when a web browser tries to resolve the domain part uri?
An A (address) record points to a domain.
What are mx resource records for? identifies the email servers for a domain
How would you find the ip address of example.com from the command line?
$ hostname example.com or $ dig example.com
How would you instruct a linux system to use the local network? Dns cache located at 192.168.1.254 or the isp’s Dns cache ,located at 1.2.3.4, if lan nameserver is unavailable ?

Tree files to check on.

etc man host.conf will tell you about the order option

etc Is for static dns resolve

etc the file for all your dns needs

then edit:
/etc/resolv.conf
add the following: nameserver 192.168.1.254 nameserver 1.2.3.4
How would you instruct a Dns server response only to queries from the 137.44*ip range
Add the following line to the Options section in /etc/named.conf: allow-query { 137.44.0.0/24 };
How might a resolver attempt to find the ipaddress of the example domain
A resolver will append several different domains to an unqualified Domain Name producing FQDNS that passes them one at a time.

How would you set up a private domain name hierarchy that does not include any of the official interNIC assigned domain names ?
Set up a DNS cache that defines the zone . (period) clause explicitly, rather than relying on the hint file.