Summary of detailed description of connection status

Check the number of concurrent connections and connection status of Nginx, etc. under Linux. 1. Check the number of concurrent requests of the web server (Nginx Apache) and its TCP connection status: netstat -n | awk '/^tcp/ {++S[$NF]} END {for(a in S) print a, S [a]}' or: netstat -n | awk '/^tcp/ {++state[$NF]} END {for(key in state) print key,"t",state[key]}'The return result is general As follows: LAST_ACK 5 (number of requests waiting to be processed) SYN_RECV 30 ESTABLIS

1. Detailed introduction on how to check the number of concurrent connections and connection status of Nginx under Linux

Introduction: Check the number of concurrent connections and connection status of Nginx, etc. under Linux. 1. Check the number of concurrent requests of the Web server (Nginx Apache) and its TCP connection status: netstat -n | awk & 39;

2. PHP scheduled task detects user connection status

Introduction: PHP scheduled task detects user connection status

3. View the number of concurrent apache requests and its TCP connection status

##Introduction: I have built a group in the past two days Apache server, each server has 4G memory, using prefork mode. The number of connections set at the beginning was too few, and it took a long time to respond to user requests. Later, the configuration file httpd.conf of Apache 2.0.59 was modified. ：

4. php three connection status processing

Introduction: PHP features three connection status processing - normal, aborted, timeout

##5.

Centos65 Check the number of nginx concurrent connections and TCP connection status Command

Introduction:: This article mainly introduces Centos65 commands to view the number of nginx concurrent connections and TCP connection status. Students who are interested in PHP tutorials can refer to it.

6.

linux scheduled task php scheduled task detects user connection status

Introduction: linux scheduled task: linux plan Task php scheduled task detects user connection status: Scheduled task copy code is as follows: ignore_user_abort(); // The user closes the browser program and still executes set_time_limit(0); // Does not limit the program running time $interval = 3; // Program loop Interval time seconds $link = mysql_connect('localhost', 'username', 'paswd'); mysql_select_db('test'); mysql

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