实现ＬＮＭＰ

环境：

linux系统机器
A：一台N:nginx，ip：192.168.213.251
B：一台P：php-fpm，php-mysql ，ip：192.168.213.253
C：一台M：mysql or mariadb，ip:192.168.213.254
        连接方式：
                    A <------------> B <-----------> C
关闭防火墙
disable掉selinux

１.在A上安装和配置nginx

yum install nginx
cd /etc/nginx
cp nginx.conf nginx.conf.bak
vim nginx.conf
在server中添加
index index.php　；
location ~* \.php$ {
fastcgi_pass 192.168.213.254:9000;
fastcgi_param SCRIPT_FILENAME /var/www/html/php$fastcgi_script_name;
include fastcgi_params;
}
location  ~ ^/(status|ping)$ {
fastcgi_pass 192.168.213.254:9000;
fastcgi_param SCRIPT_FILENAME /var/www/html/php$fastcgi_script_name;
include fastcgi_params;
}
nginx -t
systemctl start nginx

２.在B上安装和配置php-fpm，php-myql

yum install php-fpm php-myql
vim /etc/php-fpm.d/www.conf
listen=9000
listen.allowed_clients = 127.0.0.1,192.168.213.251
pm.status_path = /status  #用于查看php-fpm状态
ping.path = /ping
ping.response = pong

３.在Ｃ上安装和配置mysql 数据库

yum install mysql mysql-server mysql-libs
chkconfig mysqld on
chkconfig --list mysqld
service mysqld start
service mysqld status
/usr/bin/mysql_secure_installation  #根据需求进行配置
mysql -uroot -pxm1234
mysql>create user "shenxm"@'%' identified by 'xm1234';

４.测试

在Ｂ上找个目录，存放数据。
cd /var/www/html/php
vim index.php
<?php
echo date("Y/m/d h:i:s");
$mysqli=new mysqli("192.168.213.253","shenxm","xm1234");
if(mysqli_connect_errno()){
echo "not ok!";
$mysqli=null;
exit;
}
echo "ok.o....kkkk!!!";
$mysqli->close();
phpinfo();
?>
在浏览器上
http://192.168.213.251/index.php　#会有是否ｏｋ的显示
http://192.168.213.251/ping  #会显示pong的恢复
http://192.168.213.251/status  #会有状态信息显示

５.实现fastcgi缓存

在Ａ上
cd /etc/nginx
vim nginx.conf
在http中添加：
fastcgi_cache_path /var/cache/nginx/fcgi_cache levels=1:2:1 keys_zone=fcgicache:20m inactive=120s;
在server中location ~* \.php$中补充：
fastcgi_cache fcgicache;
fastcgi_cache_key $request_uri;
fastcgi_cache_valid 200 302 10m;
fastcgi_cache_valid 301 1h;
fastcgi_cache_valid any 1m;
测试：
ab -c 100 -n 2000 http://192.168.213.251/index.php
可以把fastcgi_cache 关掉在测试下
修改配置文件nginx.conf ，把“fastcgi_cache fcgicache;”改为“fastcgi_cache off;”，然后在测试。