Free Proton VPN
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@ej38fb6h63 VPN 不存在不会被墙的说法吧，只是被墙的难度高低而已。WireGuard 之类特征明显的肯定被墙，像各种 xxxVPN 对国内特供的线路和网络协议就要困难一些。
GFW 的假设是朝廷对你可以看到网站的类型进行审查，而不是让你什么都看不了，所以是存在协议伪装和掩护让 GFW 看不出来你访问的网站却又不能肯定你一定在翻墙的空间的
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哦，我有几次校园网下连了proton后网断了，关闭后又恢复，是被发现了吗
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这个是 VPN 配置有误吧，不太清楚。贵校校园网应该是可用的
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这些免费公益server现在还能用吗？有没有人实测一下?
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Seems that some servers are still accessible in China. But you should pay much attention to your DNS address after you have successfully connected to the servers.
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After you have successfully connected to 'some' of these servers, your DNS address may still be in CHINA.
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So how can i fix that
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I don't know. I just shift to other servers. Maybe it's because there are too many ports in the configuration file. I have to reconnect it for several times before successfully connect to the server.
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I test openvpn and it is secure
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I wonder what is the difference of tcp and udp protocol, tcp connection hardly succeeds.udp protocol is easier to connect
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使用免费vpn安全吗，服务器能够监视使用者的手机吗
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@ej38fb6h63 至少proton vpn是安全的。中国人的免费vpn尤其是支持简体中文的99%都是钓鱼。
Here is the introduction from Proton VPN.
Why we offer a free VPN
We believe online privacy is a fundamental human right. Providing free access is part of our mission. The Proton VPN free plan is unlimited and designed for security. No catches, no gimmicks. Just online privacy and freedom for those who need it.
Our free VPN service is supported by paying users. If you would like to support our mission, please consider upgrading.