Ways to block Facebook
There are generally two methods by which the respective countries bar the citizens from accessing Facebook and other similar websites. First one of them id DNS poisoning and the other is to block access to the IPs of these sites.
DNS Poisoning: This mysterious term refers to the faking of IP address of a particular website. Whenever you type in the URL of Facebook, the ISP looks out for the closest DNS server to retrieve the IP address of its domain and this is how the website opens. DNS is a robust database that consists of IP addresses of a number of websites and keeps on updating and caching these domains frequently. However, with a threatening process called DNS poisoning, the DNS tables and caches get corrupted.
Once it is done, the user is redirected to some other website to which the domain name points, which further infuses virus to his computing device. Consequently, the concerned authorities succeed in blocking Facebook in their particular location. Thankfully, with the help of a VPN, you can get even with such a situation since it connects you to the DNS server located in some foreign location that sets your computer free from the threats of poisoning. Your identity cannot be tracked by the prying eyes.
Blocking access to IP addresses
There are countries that block the network connection that connect the IP addresses of the websites. Facebook also falls prey to such maneuvering efforts. Hence, no wonder if you have overcome the problem of DNS poisoning, even then you may not be able to access Facebook due to IP blocking. A VPN connection is therefore a must to make your task of bypassing the filtering a cakewalk.
Best VPN vendors
You can find a whole lot of VPN vendors that could help you in your endeavors of unblocking Facebook. All you need is to do a little bit of research and choose the most appropriate ones. Much also depends on the country where you are currently located. The VPN provider should be able to get you connected to a server from where you can open the social networking websites without any interruption. HideMyAss is a prominent VPN provider that you can opt for in this context. PureVPN is yet another vendor that is a premiere contender in the industry when it comes to accessing the inaccessible. Other VPNs include StrongVPN, ExpressVPN, Switch VPN and so on. The list is wide open, some of them are provided below:
VPN Service Starting Price
StrongVPN $21/3 Months
VPN Tunnel $7.18/Month
Switch VPN $5.95/Month
Ivacy VPN $6.81/Month