Commonly used statements for viewing Apache status in Linux

Collect common Apache status statements in Linux:

1. view the number of concurrent Apache requests and their TCP connection status:

Netstat-N | awk '/^ TCP/{++ s [$ NF]} end {for (a in S) print a, s [a]}'

The returned results are generally as follows:

Syn_recv 28
Close_wait 1
Time_wait 9
Established 4
Last_ack 1
Fin_wait1 1

Syn_recv indicates the number of requests waiting for processing; established indicates the normal data transmission status; time_wait indicates the number of requests waiting for the timeout to end.

2. view the number of Running Processes in Apache (prefork Mode)

PS-Ef | grep apache2 | WC-l

The number returned is the number of Apache processes. If the Apache file name in the system is httpd, run

PS-Ef | grep httpd | WC-l