Kendrick

Domain Name System (DNS) is a hierarchical distributed database that enables a system to locate resource records (RRs) for a domain name. DNS can be used to resolve domain names to IP addresses, hostnames, or other resource records.

A DNS server provides the lookup service for a domain name. When a user types a domain name into a web browser, the browser contacts the DNS server to resolve the domain name to an IP address.

The DNS server then looks up the IP address in the DNS hierarchy and returns the corresponding hostname or other resource record.

A DNS server can be configured to propagate the DNS resolution for a domain name to other DNS servers. If the DNS server is configured to propagate the DNS resolution, other DNS servers will be able to resolve the domain name when the user types the domain name into a web browser.

To check if the DNS resolution for a domain name is propagated, you can use the “dig” tool on a DNS server. The “dig” tool can be used to query the DNS servers for a domain name.

The “dig” tool will return the IP address of the DNS server that is closest to the queried domain name.