**压力测试 [root@CentOS7-1 ~]# which ab
/usr/bin/ab

ab -n2000 -c800 www.benet.com/index.html

//发送2000请求，并发连接800

可以关闭压缩功能，观察测压结果
**
Apache工作模式

event模式（默认） 查看工作模式 cd /usr/local/httpd/bin
./httpd -l
yum install lsof -y
**lsof -i :80

COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
httpd 2266 root 3u IPv4 15838 0t0 TCP 192.168.100.101:http (LISTEN)
httpd 2267 daemon 3u IPv4 15838 0t0 TCP 192.168.100.101:http (LISTEN)
httpd 2268 daemon 3u IPv4 15838 0t0 TCP 192.168.100.101:http (LISTEN)
httpd 2269 daemon 3u IPv4 15838 0t0 TCP 192.168.100.101:http (LISTEN)

一个root主进程带有多个daemon子进程**

prefork模式
./configure \
--prefix=/usr/local/httpd \
--enable-deflate \
--with-mpm=prefork \
--enable-expires \
--enable-so \
--enable-rewrite \
--enable-charset-lite \
--enable-cgi

**vim /etc/httpd.conf
Include conf/extra/httpd-mpm.conf

vim /usr/local/httpd/conf/extra/httpd-mpm.conf

StartServers 10 # 启动时进程数
MinSpareServers 10 # 最小空闲进程数
MaxSpareServers 50 # 最大空闲进程数
MaxRequestWorkers 150 #最大并发进程数
MaxConnectionsPerChild 0 # 最大连接数限制
**

worker模式
./configure \
--prefix=/usr/local/httpd \
--enable-deflate \
--with-mpm=worker \
--enable-expires \
--enable-so \
--enable-rewrite \
--enable-charset-lite \
--enable-cgi

**vim /etc/httpd.conf
Include conf/extra/httpd-mpm.conf


StartServers 2 #启动时进程数
MinSpareThreads 25 #最小空闲线程数
MaxSpareThreads 75 #最大空闲线程数
ThreadsPerChild 25 #每个进程可以启动的线程数量
MaxRequestWorkers 150 #线程数量最大值
MaxConnectionsPerChild 0 #最大连接数限制
ThreadLimit 64 #每个进程可以启动的线程数量上限值

**

**目录属性
vim /etc/httpd.conf


Options Indexes FollowSymLinks 

AllowOverride None


     Require all granted      //允许所有
     Require not ip 192.168.176.140   //不让176.140访问

**