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netstat 第一次用,看不懂

php 搞代码 4年前 (2022-01-25) 34次浏览 已收录 0个评论
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<code># netstat -a | more Active Internet connections (servers and established) Proto Recv-Q Send-Q Local Address           Foreign Address         State tcp        0      0 localhost:30037         *:*                     LISTEN udp        0      0 *:bootpc                *:*</code>

请问

Local Address 本地地址 Foreign Address 外部地址

这两个地址代表什么意思,看不懂

回复内容:

<code># netstat -a | more Active Internet connections (servers and established) Proto Recv-Q Send-Q Local Address           Foreign Address         State tcp        0      0 localhost:30037         *:*                     LISTEN udp        0      0 *:bootpc                *:*</code>

请问

Local Address 本地地址 Foreign Address 外部地址

这两个地址代表什么意思,看不懂

http://en.wikipedia.org/wiki/Network_socket

An Internet socket is characterized by a unique combination of the following:

  1. Local socket address: Local IP address and port number
  2. Remote socket address: Only for established TCP sockets. As discussed in the client-server section below, this is necessary since a TCP server may serve several clients concurrently. The server creates本@文来源gao($daima.com搞@代@#码(网5搞gaodaima代码 one socket for each client, and these sockets share the same local socket address from the point of view of the TCP server.
  3. Protocol: A transport protocol (e.g., TCP, UDP, raw IP, or others). TCP port 53 and UDP port 53 are consequently different, distinct sockets.

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