Stealth VPN is a term used to describe a VPN protocol or server that makes VPN traffic look like regular web traffic through obfuscation, even when deep packet inspection (DPI) is performed on the traffic by a firewall or network administrator. Learn about StealthVPN, the way it bypasses VPN blocking, the available implementations, and the best Stealth VPN providers.
What is DPI (Deep Packet Inspection)?
Deep packet inspection (DPI) is an advanced technique used to examine and manage network traffic. It employs packet filtering to locate, identify, classify, reroute or block packets with a specific code or data payloads. Conventional packet filtering can’t detect DPI, as it only looks at packet headers.
Deep Packet Inspection tools
Network administrators often use DPI as a security tool to detect and intercept viruses and other types of malicious traffic. However, they can also use it for disreputable activities, such as eavesdropping.
Deep Packet Inspection is also used to streamline the flow of network traffic. A message that is, for example, flagged as high priority can be sent to its destination before low-priority packets or messages. DPI can also be used to improve network performance by throttling data transfer, thereby preventing peer-to-peer abuse.
DPI has sparked concern among proponents of Net Neutrality and privacy advocates, as it is possible to identify both the recipient and originator from content enclosing specific packets.
What is Obfuscation?
Obfuscating means to make something obscure. When applied to Internet traffic, obfuscating implies that you are trying to hide its real purpose, similar to putting on a disguise. [click to continue…]
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