VPN Client Substitute Domains for ISP Blocking
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Solution Overview
Problem
VPN service providers may be unreachable due to blocked access by Internet Service Providers (ISPs), leading to inefficient resource consumption and delays in obtaining VPN services.
Innovation Solution
A client application determines substitute domain information in real-time by using a combination of time markers and predetermined alphanumeric characters, allowing it to bypass ISP blocks and establish a connection with the VPN service provider.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the client application uses the original domain information to connect to the VPN service provider, then the connection method is simple, but the VPN service provider becomes unreachable due to ISP blocking
Solution Approach 1:
The system pre-generates multiple substitute domain information options before the connection attempt. When the original domain is blocked, the client application can immediately switch to a pre-prepared alternative without requiring complex real-time generation or multiple retry attempts, thus maintaining reliability while controlling complexity
Solution Approach 2:
The patent changes the domain information parameter dynamically. Instead of using a fixed domain name that can be blocked, the system generates substitute domain information with different parameters (such as different subdomains or domain structures) to bypass ISP blocking, thereby maintaining reachability to the VPN service provider
2Productivity
If the client application continuously retries connection with original domain information, then the connection method remains simple, but resource consumption increases and delays occur
Solution Approach 1:
The system prepares multiple substitute domain information options in advance before connection failures occur. This preliminary preparation eliminates the need for continuous retry attempts with the same blocked domain, reducing both time delays and resource consumption while maintaining fast service acquisition
Solution Approach 2:
Instead of repeatedly attempting connections with blocked domain information, the system skips directly to using substitute domain information. This approach rushes through the blocking obstacle efficiently, avoiding wasted resources on futile retry attempts and significantly improving the speed of obtaining VPN service
Data Source
AI summary
A method in a virtual private network (VPN) environment, the method including receiving, at a user device, domain information associated with a VPN service provider; transmitting, by the user device, a first connection request to the VPN service provider based at least in part on utilizing the domain information; determining, by the user device, that the VPN service provider cannot be reached via utilization of the domain information; determining, by the user device based at least in part on determining that the VPN service provider cannot be reached, substitute domain information to be utilized for transmitting a second connection request; and transmitting, by the user device, the second connection request to the VPN service provider based at least in part on utilizing the substitute domain information is disclosed. Various other aspects are contemplated.