![]() It was really just a server that he could log onto and do cool stuff with it. Years ago my high school roommate bought a Virtual Private Server (VPS) service in Japan. So how do we get to access those web services? The solutions are usually based on trying to relay the connections through some intermediate services that are green-flagged by the firewall and can be reached from both ends. Let’s also assume that the firewall by default blocks all kinds of network traffic between the Mainland and all the well-known malicious (In China’s perspective, and tbh, it’s true) US web services. Let’s just assume that VPN is a magic connection that connects your computer to a remote server and therefore your computer looks like it’s just sitting next to the remote server connected to the Local Area Network (LAN). Therefore I thought it might be best to skip the technical details first and think about the overall problem first. I could still vaguely remember a bunch of network related buzzwords from OS class such as TCP, IP, ARP, DNS, etc. I don’t have much experience with system infrastructure or building servers, but I did take Operating Systems during four years of college. Photo by Aideal Hwa on Unsplash But wait… How does VPN work in the first place? Therefore I was asked to figure out a way to build a network that is accessible from his phone and also in some way the network can reach servers of Google, Facebook, and Instagram.Ĭool Building. All the IP addresses from the provider also became unreachable. Recently that tunnel stopped working, most likely that maybe the service provider got banned by the firewall. Long story short - He used to have a working VPN tunnel so he could just connect on his phone and start posting photos on Instagram. Then he goes to bed and waits for the next day. After work, he goes to the gym, and then he heads home and spends 5 hours on Overwatch. During the lunch break, he usually spends some time browsing his social media, including Instagram and Facebook. After lunch, there is a lunch break - usually a few hours. He has a solid daily routine: Every morning he goes to work, spend a few hours staring at monitors and maybe complete a few stock transactions assigned by his manager. Despite his degree in Hotel Administration, he picked up his career in the Finance & Securities Industry. ![]() My friend Ryan went back to Shenzhen after graduation. Last week my college roommate sent me a message on WeChat, asking me if I knew any reliable VPN service providers so that he could check his Instagram feed during his stay in China.
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