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阻止某个端口，以便进程停止使用它来连接

tag-icon • tag-icon networking iptables firewall ufw
阻止某个端口，以便进程停止使用它来连接

我想阻止某个进程连接到某个端口，我尝试使用 ufw，在下一个示例中，我尝试拒绝连接到端口 5100，而 LEOCoin 进程正在监听该端口上的连接

To                         Action      From
--                         ------      ----
22/tcp                     DENY        Anywhere
5100/udp                   DENY        Anywhere
5100/tcp                   DENY        Anywhere
22/tcp (v6)                DENY        Anywhere (v6)
5100/udp (v6)              DENY        Anywhere (v6)
5100/tcp (v6)              DENY        Anywhere (v6)

22/tcp                     ALLOW OUT   Anywhere
5100/tcp                   ALLOW OUT   Anywhere
5100/udp                   DENY OUT    Anywhere
8338                       ALLOW OUT   Anywhere
8338/tcp                   ALLOW OUT   Anywhere
22/tcp (v6)                ALLOW OUT   Anywhere (v6)
5100/tcp (v6)              ALLOW OUT   Anywhere (v6)
5100/udp (v6)              DENY OUT    Anywhere (v6)
8338 (v6)                  ALLOW OUT   Anywhere (v6)
8338/tcp (v6)              ALLOW OUT   Anywhere (v6)

但我无法阻止该进程连接。我也尝试了 iptable，但没有任何效果

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