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ping IP?ping 端口?

更新于 写于

ping 是使用的是 ICMP(internet control message protocol),没有端口一说。(TCP, UDP 才有端口一说)

许多防火墙中可以单独配置允许或禁止 ICMP。

Some people may use the phrase "ping a port" informally meaning to open a TCP connection to that port and see if a response is received, but practically speaking, there is no ping port.