LEMP（或LNMP）高性能的WEB服务器在CentOS6.2/5.8下的Yum搭建流程

原文：http://blog.csdn.net/uuleaf/article/details/7736876

本文将指导你如何在CentOS/Red Hat (RHEL) 6.2/5.8下使用Yum来搭建LEMP WEB服务器。国内

LEMP (Linux, Nginx, MySQL, PHP) 服务器目前在国内大的企业如百度腾讯使用非常普遍，但是因为LEMP不易安装配置，难为了许多运维人员。在本安装中，我尽量使用yum安装而避免编译安装，有将有效减少安装过程的时间及复杂程序。

LEMP（或LNMP）高性能的WEB服务器在CentOS6.2/5.8下的Yum搭建流程

STEP1.切换到root用户

 su -
 ## OR ##
 sudo -i

STEP2.安装必要的软件源

 

1. 安装Remi源

 ## Remi Dependency on CentOS 6 and Red Hat (RHEL) 6 ##
 rpm -Uvh http://download.fedoraproject.org/pub/epel/6/i386/epel-release-6-7.noarch.rpm

 ## CentOS 6 and Red Hat (RHEL) 6 ##
 rpm -Uvh http://rpms.famillecollet.com/enterprise/remi-release-6.rpm


 ## Remi Dependency on CentOS 5 and Red Hat (RHEL) 5 ##
 rpm -Uvh http://dl.fedoraproject.org/pub/epel/5/i386/epel-release-5-4.noarch.rpm

 ## CentOS 5 and Red Hat (RHEL) 5 ##
 rpm -Uvh http://rpms.famillecollet.com/enterprise/remi-release-5.rpm

2.配置Nginx 源

创建/etc/yum.repos.d/nginx.repo文件并写入以下内容

CentOS

 [nginx]
 name=nginx repo
 baseurl=http://nginx.org/packages/centos/$releasever/$basearch/
 gpgcheck=0
 enabled=1

RedHat(RHEL)

 [nginx]
 name=nginx repo
 baseurl=http://nginx.org/packages/rhel/$releasever/$basearch/
 gpgcheck=0
 enabled=1

STEP3.安装Nginx

 yum --enablerepo=remi,remi-test install nginx

STEP4.安装PHP5.4.4&PHP-FPM

 yum --enablerepo=remi,remi-test install php php-fpm php-common

STEP5.安装PHP5.4.4模块扩展(一些扩展可能无用，请自行去除)

 yum --enablerepo=remi,remi-test install php-pecl-apc php-cli php-pear php-pdo php-mysql php-pgsql php-pecl-mongo php-sqlite php-pecl-memcache php-pecl-memcached php-gd php-mbstring php-mcrypt php-xml

STEP6.停止并禁用httpd服务，启动Nginx HTTP服务及PHP-FPM

1.  停止httpd

 /etc/init.d/httpd stop
 ## OR ##
 service httpd stop
 chkconfig httpd off

2.  启动Nginx

 /etc/init.d/nginx start
 ## OR ##
 service nginx start

3.  启动PHP_FPM

 /etc/init.d/php-fpm start
 ## OR ##
 service php-fpm start

4. 配置nginx使用PHP-FPM,修改/etc/nginx/conf.d/default.conf 

(1) 先为/etc/nginx/conf.d/default.conf作一个备份

 cp /etc/nginx/conf.d/default.conf /etc/nginx/conf.d/default.conf_bak

(2) 在default.conf 文件中，找到以下内容。

 location / {
         root   /usr/share/nginx/html;
         index  index.html index.htm;
     }

修改为：

 location / {
         root   /usr/share/nginx/html;
         index  index.html index.htm index.php;
 }

nginx默认的wwwroot文件夹为/usr/share/nginx/html，这里你可以修改为自己指定的目录
(3) 去除以下内容前的#号，并修改fastcgi_param所在行

 #location ~ \.php$ {
 #       root           html;
 #       fastcgi_pass   127.0.0.1:9000;
 #       fastcgi_index  index.php;
 #       fastcgi_param  SCRIPT_FILENAME  [将此处修改为wwwroot路径]$fastcgi_script_name;
 #        include        fastcgi_params;
 #}

修改结果

 location ~ \.php$ {
         root           html;
         fastcgi_pass   127.0.0.1:9000;
         fastcgi_index  index.php;
         fastcgi_param  SCRIPT_FILENAME  /usr/share/nginx/html$fastcgi_script_name;
         include        fastcgi_params;
 }

STEP7.配置iptables防火墙开启80端口

为Nginx Web Server开放80端口,修改/etc/sysconfig/iptables文件，加入如下内容

 cd /etc/nginx/sites-enabled/
 -A INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j ACCEPT

重启iptables防火墙

 cd /etc/nginx/sites-enabled/
 service iptables restart
 ## OR ##
 /etc/init.d/iptables restart

STEP8.测试Nginx及PHP-FPM

1. 重启nginx及php-fpm

 service nginx restart
 service php-fpm restart

yum install php-fpm php-cli php-mysql php-gd php-pear php-xml php-xmlrpc php-magickwand php-mbstring php-mcrypt php-mssql php-shout php-snmp php-soap php-tidy php-zmq php-twig php-process php-redis php-pecl-xhprof php-pecl-xdebug php-pecl-ssh2 php-pecl-rrd php-pecl-memcached php-pecl-memcache php-pecl-imagick php-pecl-apc