一、添加安装源
Centos 默认官方源中没有nginx 和 php-fpm 所以必须添加第三方源，不然就只能自己编译了。

添加[CentALT]源
在/etc/yum.repo.d 目下创建 alt.ru.repo 文件内容如下：

[CentALT]
name=CentALT Packages for Enterprise Linux 5 - $basearch
baseurl=http://centos.alt.ru/repository/centos/5/$basearch/
enabled=1
gpgcheck=0

添加[epel]源

在/etc/yum.repo.d 目下创建 epel.repo 文件内容如下：

[epel]
name=Extra Packages for Enterprise Linux 5 - $basearch
#baseurl=http://download.fedoraproject.org/pub/epel/5/$basearch
mirrorlist=http://mirrors.fedoraproject.org/mirrorlist?repo=epel-5&arch=$basearch
failovermethod=priority
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL

[epel-debuginfo]
name=Extra Packages for Enterprise Linux 5 - $basearch - Debug
#baseurl=http://download.fedoraproject.org/pub/epel/5/$basearch/debug
mirrorlist=http://mirrors.fedoraproject.org/mirrorlist?repo=epel-debug-5&arch=$basearch
failovermethod=priority
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL
gpgcheck=1

[epel-source]
name=Extra Packages for Enterprise Linux 5 - $basearch - Source
#baseurl=http://download.fedoraproject.org/pub/epel/5/SRPMS
mirrorlist=http://mirrors.fedoraproject.org/mirrorlist?repo=epel-source-5&arch=$basearch
failovermethod=priority
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL
gpgcheck=1

二、启用 EPEL

   64系统的用下面命令
rpm -Uvh http://download.fedora.redhat.com/pub/epel/5/x86_64/epel-release-5-4.noarch.rpm
  32系统的用下面命令
rpm -Uvh http://download.fedora.redhat.com/pub/epel/5/i386/epel-release-5-4.noarch.rpm

上面的连接已经失效了，现在使用下面的，根据不同的版本选择（5.0和6.0两个版本）

CentOS 6.0

rpm -Uvh http://download.fedoraproject.org/pub/epel/6/i386/epel-release-6-5.noarch

http://mirrors.ustc.edu.cn/fedora/epel/6/x86_64/epel-release-6-8.noarch.rpm

CentOS 5.0

rpm -Uvh http://mirrors.ustc.edu.cn/fedora/epel/5/i386/epel-release-5-4.noarch.rpm

 或者到这网站下载 http://mirrors.neusoft.edu.cn/

 或者 http://mirrors.ustc.edu.cn/fedora/epel/ 下载

 epel-release-6.x noarch.rpm

三、安装 nginx +PHP-FPM +eAccelerator +mysql(当前Nginx为1.04)

1、更新系统

yum update

2、yum方式安装nginx+php+mysql  yum install nginx php-fpm php-cli php-pdo php-mysql php-mcrypt php-mbstring php-gd php-tidy php-xml php-xmlrpc php-pear php-pecl-memcache php-eaccelerator  mysql mysql-server msyql-libs mysql-devel 

3、配置优化Nginx 修改 /etc/nginx/nginx.conf,红色部分是要修改的地方，请注意。

#vi /etc/nginx/nginx.conf

user  nginx; worker_processes  4; worker_rlimit_nofile 100000;

error_log   /var/log/nginx/error.log; #error_log  /var/log/nginx/error.log  notice; #error_log  /var/log/nginx/error.log  info;

pid        /var/run/nginx.pid;

#启用epoll

events {     worker_connections  1024;     use epoll; }

http {     include       /etc/nginx/mime.types;     default_type  application/octet-stream;

    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '                       '$status $body_bytes_sent "$http_referer" '                       '"$http_user_agent" "$http_x_forwarded_for"';

    access_log  /var/log/nginx/access.log  main;

    sendfile        on;     tcp_nopush      on;     tcp_nodelay     on;     server_tokens   off;     gzip            on;     gzip_static     on;     gzip_comp_level 5;     gzip_min_length 1024;     keepalive_timeout  65;     limit_zone   myzone  $binary_remote_addr  10m;

      #fastcgi优化      fastcgi_connect_timeout 300;      fastcgi_send_timeout 300;      fastcgi_read_timeout 300;      fastcgi_buffer_size 64k;      fastcgi_buffers 4 64k;      fastcgi_busy_buffers_size 128k;      fastcgi_temp_file_write_size 256k;

    # Load config files from the /etc/nginx/conf.d directory     include /etc/nginx/conf.d/*.conf;

       server {         limit_conn   myzone  10;         listen       80;         server_name  ftp.htsprings.com.cn;

        charset UTF-8;

        #access_log  logs/host.access.log  main;

        location / {             root   /var/www/html;             index  index.php;         }

        error_page  404              /404.html;

        location = /404.html {             root   /usr/share/nginx/html;         }

        # redirect server error pages to the static page /50x.html         #         error_page   500 502 503 504  /50x.html;         location = /50x.html {             root   /usr/share/nginx/html;         }

        # proxy the PHP scripts to Apache listening on 127.0.0.1:80         #         #location ~ \.php$ {         #    proxy_pass   http://127.0.0.1;         #}

        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000         #         location ~ \.php$ {             root           /var/www/html;             fastcgi_pass   127.0.0.1:9000;             fastcgi_index  index.php;             fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;             #fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;             include        fastcgi_params;         }

        # deny access to .htaccess files, if Apache's document root         # concurs with nginx's one         #         #location ~ /\.ht {         #    deny  all;         #}     }

    # another virtual host using mix of IP-, name-, and port-based configuration     #     #server {     #    listen       8000;     #    listen       somename:8080;     #    server_name  somename  alias  another.alias;

    #    location / {     #        root   html;     #        index  index.html index.htm;     #    }     #}

    # HTTPS server     #     #server {     #    listen       443;     #    server_name  localhost;

    #    ssl                  on;     #    ssl_certificate      cert.pem;     #    ssl_certificate_key  cert.key;

    #    ssl_session_timeout  5m;

    #    ssl_protocols  SSLv2 SSLv3 TLSv1;     #    ssl_ciphers  ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP;     #    ssl_prefer_server_ciphers   on;

    #    location / {     #        root   html;     #        index  index.html index.htm;     #}

}   4、php-fpm 调整 修改/etc/php-fpm.conf 将max_children 调为20

<value name="max_children">20</value>mysql 调整

5、修改/etc/my.conf [mysqld] 段加入如下指令

skip-network skip-innodb skip-locking skip-bdb key_buffer                      = 16K max_allowed_packet      = 3M thread_stack                  = 64K thread_cache_size         = 8 table_cache                   = 3 query_cache_limit         = 1M query_cache_size         = 16M系统内核调整

6、在/etc/sysctl.conf 加入

net.ipv4.tcp_fin_timeout = 30 net.ipv4.tcp_keepalive_time = 300 net.ipv4.tcp_tw_reuse = 1 net.ipv4.tcp_tw_recycle = 1 net.ipv4.ip_local_port_range = 5000    65000 net.ipv4.tcp_max_tw_buckets = 6000

echo “ulimit -SHn 65535” >> /etc/rc.local sysctl -p开启服务并设置系统启动默认启动

ulimit -SHn 65535

7、启动相关服务

/etc/init.d/nginx     start /etc/init.d/php-fpm start /etc/init.d/mysqld   start chkconfig nginx on chkconfig php-fpm on chkconfig mysqld on

完成后在你的主目录/var/www/html（我将nginx的home目录更改了，默认不是这个）下建立一个index.php文件进行测试，一般不会有什么问题的！

<?

   phpinfo();

?>