Bypass Censorship By DNS
Overview
Changing the domain name server (DNS) is one of the easiest way. If the contents restriction is by DNS we simply only need to use another DNS, if not then this method cannot be use. Changing DNS on client is also among the most basic because there are many open DNS server out there compared to proxy and VPN server. Many users used Google’s DNS server “8.8.8.8” to bypass censorship or sometimes, it is just faster. Another reason is, if your censorship only comes from DNS, it is much easier to change your DNS setting the performing overkills such as setting proxy and VPN, and in some cases, even you do set proxy and VPN, sometimes it just doesn’t work if the censorship comes from the DNS.
Here DNS will be introduced on public level in other words simple term. More information can be found in my article Simple Introduction to Computer Network and technical term will be upcoming. To make things short we browse the web mainly using the domain address for example “www.facebook.com”, but our machine itself prefer internet protocol (IP) address which is still version 4 of IP “173.252.74.22”. When we write, the DNS translate it from “www.facebook.com” > “173.252.74.22”.
