Wednesday, May 2, 2012

How VPN Works and Top Five Free VPN Services

VPN ( Virtual Private Network ) using for security in internet networks. It will provide long distance connectivity, between multiple offices of a company by providing secure data transfer and encryption.It can provide security in your video conferencing, as well as
data transfer. It reduces the costs for establishment and maintaining long distance networks. Totally VPN service containing more advantages than normal networks


What is VPN ?

A virtual private network ( VPN )is a special type of wide area network (WAN), which establish connectivity without using leased private lines and makes use of the Internet. It uses the established Internet network, for remote connectivity between long distance offices, workstations or networks. VPN has its own set of softwares, protocols and security constructs which make secure connectivity possible.  

How VPN Work ?

Normally user double clicks on a software shortcut and the VPN connection window appears. Then user enters a username and password and press connect, the VPN connection is immediately established. Once users are connected to the office network over VPN, they can access files and other resources. After their work press ” Disconnect ” button for disconnect PC from VPN network.

In a small office network, VPN is most frequently implemented through a router. Just about every small office that shares an Internet connection with more than one computer already has a router of some kind, but most of them don’t include VPN. For example, small office/home office (SOHO) routers by Linksys, Netgear, or D-Link are popular choices, offering DHCP, NAT, and basic security features in a single device, but they don’t always include VPN support..

In order to use VPN, your Internet connection should have a static IP address. For establishing of a VPN connection, a secure tunnel is established between VPN server and client. A VPN tunnel is known as a special type of link between a VPN server and a client. The datas transported through the VPN network follows different protocol rules that encrypt the datas over its journey to the VPN server. In the time of reception at the VPN server, the data is again decrypted. Tunnel is a dedicated and secure connection maintained between the VPN server and remote computer. A VPN tunnel may be voluntary or compulsory. Protocols used for VPN tunneling are Layer Two Tunneling Protocol (L2TP), Point-to-Point Tunneling Protocol (PPTP) and Internet Protocol Security (Ipsec).  

Advantages of VPN

VPN network providing secure data transfer and encryption.
It reduces the costs involved in maintaining long distance networks.
VPN is useful for remote access.
VPN allow Access to Mobile Users.
Several ports for VPN connection (ports: 1194, 53, 5190)

  • To protect privacy, either on a LAN or a public hotspot.
  • Anonymous Internet Surfing
  • Full anonymity by hiding your real IP address.
  • Bypass geographical blocks from certain websites
  • Unlike a proxy, you get secured connection for all programs you are using
  • Quality Network ensures your VPN service will be fast wherever you are in the world
  • Protection against your ISP
  • Bypass ISP Blocking for VOIP Applications like Skype

Some VPN Service Providers

Ultra VPN is one of the best free vpn service. UltraVPN is a client/server SSL VPN solution based on OpenVPN. It encrypts and anonymizes your network connection. Using Ultra free VPN service you can watch american streaming websites like or, access blocked websites from within a corporate environment, connect or log in into MSN if it’s blocked, use VoIP software like Skype if it’s blocked, protect your email and browsing privacy.


Anchor free is most used another free vpn service. Its very easy to install and use. Anchor free don’t have any paid version somedays earlier but now have. In free version they will show a add in every page top. It works on mac and windows pc.


CyberGhost is German based vpn service. They have free vpn service and also have paid vpn service. In free vpn service traffic limit is 10GB every month. You know 1GB is enough for chatting, browsing, email etc. 

Security Kiss is another best free vpn service. Security Kiss free version have daily 300MB traffic limit which is enough for normal works. It is free for lifetime and the free version only can used in windows pc and paid version are available for mac , linux, windows . Security Kiss is 100% add free and you can switch unlimited server every day in free version . 


USAIP is another free vpn service you can use without any registration  but have some limitations your connection will disconnect after every 7 minutes and also the speed limit is 200kbps . If you are a blog or website owner you can get a paid account for free from USAIP . To get paid account for free visit this link : USAIP for blogger and site owner .

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Written by

Hello, My name is Ankit Bhandari You can visit and Learn Ethical Hacking from my blog. But all these hacking tricks only for educational purpose. Me and My Blog will not responsible for any wrong use of this. Enjoy it but never miss use it.


  1. This is very helpful in knowing that what is VPN and how its works. I am planing to take VPN service so please provide me
    list of Top VPN providers. Thanks

  2. Free VPN services have not worked so well for me, they`re pretty slow and full of adware.. Right now I`m using this VPN service, it`s pretty fast and user friendly. It`s not free, but if you`re a frequent user it`s well worth the money..

  3. You can try AnchorFree's Hotspot Shield Free VPN to stay anonymous over the internet.It hide your IP address and protects you against hackers.



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