What happens during a network request to [link]? Describe the DNS resolution process.

When making a network request to a URL, several steps occur, one of the key ones being DNS resolving, which is the process of converting a domain name into an IP address.

The DNS resolving process:

1. Checking the local cache: The OS first checks if there is an IP address for the domain in the local cache.
2. Query to DNS server: If not in cache, a request is sent to the configured DNS server (usually the provider's).
3. Recursive search: The DNS server may contact root servers, then top-level domain servers (.com, .org, etc.), and then authoritative domain servers to obtain the IP.
4. Response to the client: The obtained IP is returned to the client and cached.
5. Establishing a connection: After receiving the IP, a TCP connection is established with the server at that address.

Thus, DNS resolving is a hierarchical and cacheable process that ensures the conversion of human-readable domain names into IP addresses necessary for network interaction.