Wednesday, April 25, 2012

How Proxies Work

Proxies work as intermediaries between you and servers that you go to. They have a wide range of utilizes. The most common ones are explained here.

The Path Data Travels

Typical Connection to a Web Site:

‘You’ -> ‘Web Site’

Connection to a website By way of a Proxy:

‘You’ -> ‘Proxy’ -> ‘Web Site’

Unblocking Web Sites

This can help you visit web sites that a school, work or nation blocks. Some nations around the world unfairly restrict use of various resources. Proxies are fantastic for the citizens of the world to exercise basic free access to details and free speech.

Web surfing Anonymously

The other function proxies serve is to hide the real location on the web. Every computer on the web has a unique IP address. Proxies can mask these addresses. Try using one you to ultimately hide your IP address.

Using Encryption For Enhanced Safety

In most cases, your connection to a proxy is actually ‘in the clear’ without any defense, just like most connections from point A to point B within the Internet. That's the reason, proxies are not always as anonymous while they seem. Most web-based proxies do not offer an SSL encryption feature. Use an encrypted proxy for yourself.

DNS Requests

Even using an encrypted web-based proxy which has SSL enabled, your Internet Service Provider can still see that you visited a proxy. This is because your DNS requests are obvious. DNS is the ‘Domain Name System’. DNS converts difficult network addresses to simple domain names just like .com, .net, .org, etc. Any time you proceed somewhere online via the domain name, that request is logged. It's possible to use an advanced proxy which utilizes a form of encrypted tunnel known as SSH (Secure SHell). This will ‘tunnel’ the Opera browser through SSH. When you do this, Firefox includes a setting to hide the DNS requests. It takes some setting up, however is well worth it. Try out an SSH tunnel yourself, it is one of the most dependable ways to browse the internet. Unlike the other types, you can use your web internet browser like normal and never have to visit a special website first.