What is VPN?
A Virtual Private Network (VPN) is a network technology that creates a secure network connection over a public network such as the Internet or a private network owned by a service provider. Large corporations, educational institutions, and government agencies use VPN technology to enable remote users to securely connect to a private network.
A VPN can connect multiple sites over a large distance just like a Wide Area Network (WAN).
VPNs are often used to extend intranets worldwide to dis-seminate information and news to a wide user base. Educational institutions use VPNs to connect campuses that can be distributed across the country or around the world.
In order to gain access to the private network, a user must be authenticated using a unique identification and a password. An authentication token is often used to gain access to a private network through a personal identification number (PIN) that a user must enter. The PIN is a unique authentication code that changes according to a specific frequency, usually every 30 seconds or so.
A virtual private network (VPN) extends a private network across a public network, and enables users to send and receive data across shared or public networks as if their computing devices were directly connected to the private network.
Applications running across the VPN may therefore benefit from the functionality, security, and management of the private network.
VPNs may allow employees to securely access a corporate intranet while located outside the office.
They are used to securely connect geographically separated offices of an organization, creating one cohesive network.
Individual Internet users may secure their transactions with a VPN, to circumvent geo-restrictions and censorship, or to connect to proxy servers for the purpose of protecting personal identity and location.
However, some Internet sites block access to known VPN technology to prevent the circumvention of their geo-restrictions.
A VPN is created by establishing a virtual point-to-point connection through the use of dedicated connections, virtual tunneling protocols, or traffic encryption.
A VPN available from the public Internet can provide some of the benefits of a wide area network (WAN).
From a user perspective, the resources available within the private network can be accessed remotely.
Step by Step: Building a VPN (Incoming)
Step 1: Click the Start button, and, in the search bar, type Network and Sharing.
Step 2: Click Change Adapter Settings in the left-hand menu.
Step 3: Click File, and then New Incoming Connection.
Step 4: Select the users you’d like to give access to and click Next.
Step 5: Click Through the Internet and select Next.
Step 6: Select the Internet Protocol you’d like to use. (The default TCP/IPv4)
Step 7: Finally, click Allow access; you’ve now set up an incoming VPN connection.
Step by Step: Connecting to a VPN (Outgoing)
Step 1: Click the Start button. In the search bar, type VPN and then select Set up a virtual private network (VPN) connection.
Step 2: Enter the IP address or domain name of the server to which you want to connect. If you’re connecting to a work network, your IT administrator can provide the best address.
Step 3: If you want to set up the connection, but not connnect, select Don’t connect now; otherwise, leave it blank and click Next.
Step 4: On this next screen, you can either put in your user-name and password, or leave it blank. You’ll be prompted for it again on the actual connection. Click Connect.
Step 5: To connect, click on the Windows network logo on the lower-right part of your screen; then select Connect under VPN Connection.
Step 6: In the Connect VPN Connection box, enter the appropriate domain and your log-in credentials; then click Connect.
Step 7: If you can’t connect, the problem could be due to the server configuration. (There are different types of VPN.) Check with your network administrator to see what kind is in use—such as PPTP—then, on the Connect VPN Connection screen, select Properties.
Step 8: Navigate to the Security tab and select the specific Type of VPN from the drop-down list. You may also have to unselect Include Windows logon domain under the Options tab. Then click OK and Connect.
How To Set-up a VPN on Android Without Any App
The method is very simple and easy and just require initial set up to set VPN permanently in your android device.
You just have to follow some simple steps below to proceed.
– First of all in your android device navigate to Menu -> Settings.
– Click on more option. Click on VPN, A blank setting screen will appear. Click on ‘+‘ button there at the right top corner.
– Enter the name of VPN as Techhacks. At the type, select the type you want to request to server and at the last field, enter any VPN address that you want to set in your android device.
– After filling up all the fields, click on save button.
– Now the VPN will appear, tap on it and enter the username and password in it and click on connect.
In your notification bar you will see running VPN service without any third party app in your android device.