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What is a Proxy Server?

What is a proxy server? So that is the topic of this video. Now a proxy server

is a server that retrieves data out on the Internet,

such as a web page, on behalf of a user. so for example, normally when a computer

wants to view a web page out on the internet, you would just open up a web

browser and then type in the address and retrieve that web page from its web

server. Now when you go through a proxy server, the proxy server will act like a

middleman and will retrieve that web page for you. So now when you want to go

to a website, the proxy server receives the request from your computer and the

proxy server will directly retrieve the web page on your behalf and then send it

to your computer. So the question is why would you want to

use a proxy server? Well, a proxy has several benefits and one benefit is

privacy, because it allows you to surf the internet anonymously because it

hides your IP address. Because without using a proxy and when you visit a

website, your public IP address is visible so certain people can know which

websites you're visiting. But when you use a proxy, your IP address becomes

invisible because as the proxy server is retrieving the webpage for you, only the

IP address of the proxy server can be seen viewing the webpage. So your IP

address stops here and then the proxy IP does the rest of the work. And another

benefit of using a proxy server is speed. So for example, if a company uses a proxy

server and whenever a user wants to retrieve a webpage, the proxy server will

retrieve the webpage from the internet on behalf of the user and then it'll

store that web page into a centralized cache database. So if another user on a

different computer goes to a webpage that has been stored in the proxy

database, the proxy server doesn't have to go out on the internet to retrieve

the web page. It can simply retrieve it from its database and then send it to

the user. So this makes webpage retrieval much faster. And another benefit of this

is that it saves bandwidth, because a proxy server reduces the need to go out

on the internet to retrieve data because it already has that data stored in its

database. And another benefit of a proxy is activity logging. Now a lot of

companies will use a proxy to keep track of what websites their employees are

looking at. So when a company's employees are surfing the internet, the proxy will

keep a record of what websites they're visiting and how long they were on those

websites. And in addition, a company can also configure the proxy to block

certain websites to keep their employees from visiting them.

Now there's one notable thing that a proxy server can't do and that is

encrypt data as you surf the internet. And when data is not encrypted, that data

can be intercepted by hackers, ISPs, or governments with the proper equipment. So

this is where a VPN comes in. A VPN or virtual private network not only hides

your IP address, but it also encrypts the data that's being transferred between

your computer and the internet. So any activity that you do on the internet,

such as viewing web pages or transferring files, the data is encrypted

and kept private when using a VPN . And no logging is

involved. A VPN provides a dedicated secure tunnel between two points over

the internet. If you're interested in getting a VPN, I

personally use Nord VPN and if you go to NordVPN.com/powercert and

use the code 'powercert' or just click the link below, you'll get 75% off a

three-year plan with an extra month for free. Nord VPN has over 5,000 servers in

62 countries and they use military-grade encryption with a strict no logs policy

and they also offer a risk-free 30 day money-back guarantee. So just click the

link below thank you all for watching and I'll see you in the next video