实现LNMP

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。