IP addresses

label used to identify a network interface of a computer or other network node

In computer networking, localhost is a hostname that refers to the current computer used to access it. The name localhost is reserved for loopback purposes. It is used to access the network services that are running on the host via the loopback network interface. Using the loopback interface bypasses any local network interface hardware.

thumb|300px|right|Creating a subnet by dividing the host identifier

network using private IP addresses

method for IP address allocation and routing

creating IP packets using forged IP addresses in headers

depletion of the pool of unallocated IPv4 addresses

label used to identify a network interface of a computer or other node on an IPv6 network

1.1.1.1 is a free Domain Name System (DNS) service by the American company Cloudflare in partnership with APNIC. The service functions as a recursive name server, providing domain name resolution for any host on the Internet. The service was announced on April 1, 2018. On November 11, 2018, Cloudflare announced a mobile application of their 1.1.1.1 service for Android and iOS. On September 25, 2019, Cloudflare released WARP, an upgraded version of their original 1.1.1.1 mobile application.

early system for organizing the IPv4 address space

IP address assigned to multiple applications residing on a single server, multiple domain names, or multiple servers, rather than being assigned to a specific single server or network interface card

The Internet Protocol Version 4 (IPv4) address '''''' can have multiple uses.

32-bit label used to identify a network interface on an IPv4 network

Wikimedia list article

any Internet Protocol packet on the public Internet with a reserved IP address as source or destination; which must be dropped.