A public network is a network to which anyone can connect. The best, and perhaps only pure, example of such a network is the internet. A private network is any network to which access is restricted. A corporate network or a network in a school are examples of private networks.
WAN potentially, The Internet is a public network and a WAN (Wide Area Network) is usually private, either a leased line or a virtual private network (VPN) over the Internet.
A Virtual Private Network (VPN)
Virtual private networks are a technology that simulates a LAN network using the public internet rather than privately owned wiring. For example, you can use your home internet connection to VPN to your work network and be securely part of that network.
Intranet (LAN)
Virtual Private Network (VPN) is a secured way to surf anonymously on internet. It can change the ip address and gives access in remote area on internet. I think its configuration process is in the sources and related links.
Between the server / router and the internet router.
The internet, it is one large network that uses diffrent connection mediums to connect all computers across the world. Wheter they are in their own private network or not.
•If the hosts on a network using private IP addresses need to access the Internet, a problem arises because the private IP addresses are not allowed on the Internet. •The solution is to use NAT (Network Address Translation), which uses a single public IP address to access the Internet on behalf of all hosts on the network using other IP addresses.
If a network is using a public IP address, anyone can use it to log on to the network. A private IP address requires a specific password. Only users who have the password can use that connection.
The internet is fully of buzzwords the internet is a private network that is contained within an enterprise
The internet is a vast network that is available for the public. An intranet is a network that is private and offers a limited amount of information. Intranets can be used by companies or even schools.
Using NAT (NETWORK ADDRESS TRANSLATION) can make it possible to connect to Internet with Public IP Address at the Internet Gateway while Computers internally will use Private range of IP Addresses.