- Intranet: Intranet is a computer network maintained privately and that can be only accessed by the authorized persons of the organization that own the network.
- An intranset is based on the protocol TCP/IP.
- Extanet: Extranet is a private network that uses the internet protocols network connectivity. Extranet can be viewed as part of a company's intranet that is extended to users outside the company, usually via the internet.