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.iyunv.com/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
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su -
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## OR ##
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sudo -i
STEP2.安装必要的软件源
1. 安装Remi源
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## Remi Dependency on CentOS 6 and Red Hat (RHEL) 6 ##
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rpm -Uvh http://download.fedoraproject.org/pub/epel/6/i386/epel-release-6-7.noarch.rpm
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## CentOS 6 and Red Hat (RHEL) 6 ##
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rpm -Uvh http://rpms.famillecollet.com/enterprise/remi-release-6.rpm
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## Remi Dependency on CentOS 5 and Red Hat (RHEL) 5 ##
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rpm -Uvh http://dl.fedoraproject.org/pub/epel/5/i386/epel-release-5-4.noarch.rpm
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## CentOS 5 and Red Hat (RHEL) 5 ##
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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
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name=nginx repo
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baseurl=http://nginx.org/packages/centos/$releasever/$basearch/
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gpgcheck=0
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enabled=1
RedHat(RHEL)
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name=nginx repo
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baseurl=http://nginx.org/packages/rhel/$releasever/$basearch/
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gpgcheck=0
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enabled=1
STEP3.安装Nginx
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yum --enablerepo=remi,remi-test install nginx
STEP4.安装PHP5.4.4&PHP-FPM
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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)
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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
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/etc/init.d/httpd stop
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service httpd stop
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chkconfig httpd off
2.启动Nginx
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/etc/init.d/nginx start
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service nginx start
3.启动PHP_FPM
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/etc/init.d/php-fpm start
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## OR ##
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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
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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。
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location / {
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root /usr/share/nginx/html;
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indexindex.html index.htm;
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}
修改为：
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location / {
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root /usr/share/nginx/html;
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indexindex.html index.htm index.php;
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}
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
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#location ~ \.php$ {
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# root html;
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# fastcgi_pass 127.0.0.1:9000;
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# fastcgi_indexindex.php;
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# fastcgi_paramSCRIPT_FILENAME[将此处修改为wwwroot路径]$fastcgi_script_name;
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# include fastcgi_params;
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#}
修改结果
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location ~ \.php$ {
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root html;
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fastcgi_pass 127.0.0.1:9000;
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fastcgi_indexindex.php;
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fastcgi_paramSCRIPT_FILENAME/usr/share/nginx/html$fastcgi_script_name;
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include fastcgi_params;
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}
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
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cd /etc/nginx/sites-enabled/
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-A INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j ACCEPT
重启iptables防火墙
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cd /etc/nginx/sites-enabled/
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service iptables restart
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## OR ##
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/etc/init.d/iptables restart
STEP8.测试Nginx及PHP-FPM
1. 重启nginx及php-fpm
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service nginx restart
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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
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