How internet works and what is an IP addressing(Basic).
Generally, what happens, when we are trying to access the web pages or some content from web server our request first goes to our home router & then goes to ISP's set up and from there our request will go to the server where our requested data is located through different network devices like router, switch, hub etc. And using different internet protocol. This is the way how we access the data from web server but how the internet knows where our requested data is located even there are so many server & computer systems are connected to internet. Here is use of IP address, Internet Protocol address. It is 32bit unique logical address assigned to every Devices that are communicating on the internet. To uniquely distinguish one device from other over the internet a unique address must be assigned to every Devices on the internet and this unique address is called an IP address.
What is VPN?
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| what is VPN? |
VPN- Virtual Private Network is a process of access the data remotely from one place to another over the internet without revealing your geographical information and IP. It simulates private network over public network. Using VPN we can access the web pages that are restricted to our continent. The propose of developing the concept of VPN is to securely communicate a business gossip over the internet. But it is not now being used as it was developed for what propose. Peoples are taking advantage of VPN to access the restricted sites for their country. for example, your college network administrator has blocked the torrent sites for your college, However you can easily access the torrent sites using VPN.
How Does VPN works?
When we are using VPN there is a VPN server called VPS to which our devices are connected. The communication from our computer to VPS server is secured, encrypted, private also called secured tunnel. If we are connected to VPS server first of all our request goes to that server through ISP then from that server, it will resend to our destination server so that destination server knows that the requests are actually coming from VPS server to which we are connected. And our ISP (Internet Service Provider) don't know what i am actually trying to access, which server over the internet I have requested. Because using VPN our internet service provider sees my request is for VPS server, so it allow my request. If ISP has blocked particular site for my Country, I can easily access that sites using VPN server The VPS may be paid or Free.
How does VPN help you?
You can use a VPN to get following advantages:
- Bypass geographic restriction made by your ISP for particular video and websites.
- Protect your self from snooping on trust less Wi-Fi hotspots.
- You can become anonymous by hiding your geographical location and IP.
- You can access torrent sites that have been blocked by your college.
- When you are using VPN data is kept secured and encrypted.
Some disadvantage of using VPN.
- VPN server sucks your processing power and bandwidth.
- Most of the trusted VPNs are paid.
- They have ability to view all of your logs via their server.
