This topic created in 198 days ago, the information mentioned may be changed or developed.
199/年阿里云香港 ecs ，网络安全组里已经开发了自定义端口 udp ，nc -zvu ip 端口 inverse host lookup failed: Unknown host (UNKNOWN) [1.1.1.1] 22222 (?) open #ListenPort = 2222 注释掉用国内公网 IP 可以通，但反过来，去掉注释就不行。
是阿里云做了判断，无法直接出去？
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