DNS(Domain Name System)
The system that translates human-readable names like example.com into the IP addresses computers use.
On a home network you often run your own DNS (via Pi-hole or AdGuard Home) to block ads and to give your services friendly local names. DNS is also key to reverse proxies and obtaining TLS certificates.
Related articles
Reverse Proxy
A server that sits in front of your services, routing requests by domain name and handling TLS certificates.
Dynamic DNS(DDNS)
A service that keeps a domain name pointed at your home's changing public IP address.