Internet

Internet

A global network of networks

URL

A method for identifying the location of resources on the internet

Domain Name

The recognisable name of a domain on the internet

IP Address

A unique number that identifies devices on a network

Domain Name Server

A server that contains domain names and associated IP addresses

Port

Used to identify a particular process or application on a network

DNS System

A system of connected domain name servers that provides the IP address of every website on the internet

Port Forwarding

A method of routing data through additional ports

Socket

An endpoint of a communication flow across a computer network

Subnet Masking

A method of dividing a network into multiple smaller networks

DHCP

A set of rules for allocating locally unique IP addresses to devices as they connect to a network

Internet Registries

Organisations who allocate and administer domain names and IP addresses

Packet

A block of data being transmitted

Routing

The process of directing packets of data between networks

Packet Switching

A method for transmitting packets of data via the quickest route on a network

Checksum

A method of checking the integrity of data by calculating a sum based on the data being sent

FQDN - Fully Qualified Domain Name

A domain name that includes the host server name - www, mail or ftp