Linux中查看Apache的并发请求数及其TCP连接状态

最新推荐文章于 2021-10-21 10:23:43 发布

zf213

最新推荐文章于 2021-10-21 10:23:43 发布

阅读量504

点赞数

分类专栏： Linux 文章标签： linux apache tcp socket sockets output

Linux 专栏收录该内容

13 篇文章

订阅专栏

本文介绍了一个Linux命令，用于查看TCP连接的不同状态及其数量。通过该命令可以了解当前系统的网络连接情况，包括已建立连接（ESTABLISHED）、主动发起连接（SYN_SENT）、接收到来自网络的连接请求（SYN_RECV）等状态。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

Linux命令：

netstat -n | awk '/^tcp/ {++S[$NF]} END {for(a in S) print a, S[a]}'

返回结果示例：

SYN_RECV 248
CLOSE_WAIT 1
TIME_WAIT 203
ESTABLISHED 558
SYN_SENT 600

说明：
       ESTABLISHED
              The socket has an established connection.

       SYN_SENT
              The socket is actively attempting to establish a connection.

       SYN_RECV
              A connection request has been received from the network.

       FIN_WAIT1
              The socket is closed, and the connection is shutting down.

       FIN_WAIT2
              Connection is closed, and the socket is waiting for a shutdown from the remote end.

       TIME_WAIT
              The socket is waiting after close to handle packets still in the network.

       CLOSE The socket is not being used.

       CLOSE_WAIT
              The remote end has shut down, waiting for the socket to close.

       LAST_ACK
              The remote end has shut down, and the socket is closed. Waiting for acknowledgement.

       LISTEN The socket is listening for incoming connections. Such sockets are not included in the output unless you specify the
              --listening (-l) or --all (-a) option.

       CLOSING
              Both sockets are shut down but we still don't have all our data sent.

       UNKNOWN
              The state of the socket is unknown.