来点 iBug 自产新型灵车：受单端口双协议 HTTP/SOCKS5 代理服务器的启发，现在更以全新形式展现……单端口双协议 VPN 服务器

Public Wi-Fi and some campus network typically block traffic from unauthenticated clients, but more often allow traffic targeting UDP port 53 to pass through, which is normally used for DNS queries. This feature can be exploited to bypass authentication by…