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【茶包射手筆記】清除 Windows TCP Port 保留區段
source link: https://blog.darkthread.net/blog/clear-reserved-tcp-port-ranges/
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【茶包射手筆記】清除 Windows TCP Port 保留區段-黑暗執行緒
遇到老問題，Visual Studio 啟動 IISExpress 跑 ASP.NET Core 時冒出 Failed to register URL "http://localhost:59683/" for site "MyWeb" application "/". Error description: The process cannot access the file because it is being used by another process. (0x80070020)。，使用 netsh interface ipv4 show excludedportrange protocol=tcp 檢查，59683 確實踩中了 TCP Port 保留區：
但，密密麻麻 32 塊保留區(每段 100 Port)也太誇張了! 這樣子豈不一天到晚會踩到雷？爬文得知似乎是 Hyper-V 搞鬼，與 Windows NAT 服務有關，按照建議重啟 WinNAT 服務，net stop winnat 再 net start winnat，50000 以上的保留區段就只剩下 50000 - 50059。
未來再遇 TCP Port 被大量佔用，這招會比改 Port 方便一些。
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