环境：ubuntu 12.0.4 LTS
nginx(发音"engine x”)是一个自由，开放源码，高性能的HTTP server。Nginx以稳定性，丰富的功能集,简单的配置，和低资源消耗而出名。本文将向你展示怎么在ubuntu 12.0.4 LTS 上安装Nginx,php5(及php-fpm),mysql。
我使用的域名为example.com,ip地址是218.198.177.252。你可以视具体情况更改这些设置。在下文中我将使用root权限安装所需软件，所以请先切换到root用户：sudo su
apt-get install mysql-server mysql-client
安装过程会提示你为MySQL root 用户提供一个密码—-这个密码对 root@localhost可用，同时对root@example.com也可用，因此你需要手动为MySQL root用户指定一个密码：
New password for the MySQL “root” user: <-- yourrootsqlpassword
Repeat password for the MySQL “root” user: <– yourrootsqlpassword
apt-get install nginx
1，启动nginx
/etc/init.d/nginx start
2，打开浏览器输入http://127.0.0.1,如果看到Welcome to nginx!,则说明安装成功，ubuntu 12.0.4 LTS上nginx默认的网站根目录在 /usr/share/nginx/www。
PHP5可以在nginx上通过PHP-FPM（PHP—FPM（FastCGI Process Manager) 是一个可选的 FastCGI，添加了一些了一些很有用的特性，特别是对于繁忙的站点）工作。
说明：Nginx不支持对外部程序的直接调用或解析，所有的外部程序（包括PHP）必须通过FastCGI接口调用。
apt-get install php5-fpm
PHP-FPM是一个守护进程（init脚本文件在/etc/init.d/php5-fpm),它运行了一个FastCGI server,端口是 9000。
1，nginx的配置文件在/etc/nginx/nginx.conf, vim /etc/nginx/nginx.conf 如下：
user www-data; //指定Nginx Worker 进程运行用户及用户组
<!-- lang: php -->
worker_processes 4; / /指定Nginx开启的进程数，每个Nginx进程平均耗费10M-20M内存。
<!-- lang: php -->
pid /var/run/nginx.pid; //用来指定进程id的存储文件的位置
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events { //用来指定Nginx的工作模式，及连接上限数
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use epoll；
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worker_connections 768;
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# multi_accept on;
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}
<!-- lang: php -->
<!-- lang: php -->
http {
<!-- lang: php -->
<!-- lang: php -->
##
<!-- lang: php -->
# Basic Settings //基本的设置
<!-- lang: php -->
##
<!-- lang: php -->
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sendfile on;
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tcp_nopush on;
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tcp_nodelay on;
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keepalive_timeout 65;
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types_hash_max_size 2048;
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# server_tokens off;
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# server_names_hash_bucket_size 64;
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# server_name_in_redirect off;
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include /etc/nginx/mime.types;
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default_type application/octet-stream;
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##
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# Logging Settings //指定日志的存放路径
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##
<!-- lang: php -->
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access_log /var/log/nginx/access.log;
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error_log /var/log/nginx/error.log;
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##
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# Gzip Settings //开启Gzip 压缩
<!-- lang: php -->
##
<!-- lang: php -->
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gzip on;
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gzip_disable "msie6";
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gzip_vary on;
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gzip_proxied any;
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gzip_comp_level 6;
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gzip_buffers 16 8k;
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gzip_http_version 1.1;
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gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript;
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<!-- lang: php -->
##
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# nginx-naxsi config
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##
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# Uncomment it if you installed nginx-naxsi
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##
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#include /etc/nginx/naxsi_core.rules;
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##
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# nginx-passenger config
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##
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# Uncomment it if you installed nginx-passenger
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##
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#passenger_root /usr;
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#passenger_ruby /usr/bin/ruby;
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##
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# Virtual Host Configs //虚拟主机的配置
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##
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include /etc/nginx/conf.d/*.conf;
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include /etc/nginx/sites-enabled/*;
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}
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#mail {
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# # See sample authentication script at:
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# # http://wiki.nginx.org/ImapAuthenticateWithApachePhpScript
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#
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# # auth_http localhost/auth.php;
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# # pop3_capabilities "TOP" "USER";
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# # imap_capabilities "IMAP4rev1" "UIDPLUS";
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#
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# server {
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# listen localhost:110;
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# protocol pop3;
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# proxy on;
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# }
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#
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# server {
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# listen localhost:143;
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# protocol imap;
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# proxy on;
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# }
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#}
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2，虚拟主机被定义在server{}中，默认文件在/etc/nginx/sites-available/default，vim /etc/nginx/sites-available/default。
server {
listen 80; ## listen for ipv4; this line is default and implied
listen [::]:80 default ipv6only=on; ## listen for ipv6
root /usr/share/nginx/www;
index index.php index.html index.htm;
# Make site accessible from http://localhost/
server_name _;
location / {
# First attempt to serve request as file, then
# as directory, then fall back to index.html
try_files $uri $uri/ /index.html;
}
location /doc {
root /usr/share;
autoindex on;
allow 127.0.0.1;
deny all;
}
location /images {
root /usr/share;
autoindex off;
}
#error_page 404 /404.html;
# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root /usr/share/nginx/www;
}
# proxy the PHP scripts to Apache listening on 127.0.0.1:80
#
#location ~ .php$ {
# proxy_pass http://127.0.0.1;
#}
# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
#
location ~ .php$ {
try_files $uri =404;
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
include fastcgi_params;
}
# deny access to .htaccess files, if Apache's document root
# concurs with nginx's one
#
location ~ /.ht {
deny all;
}
}
3，保存文件，使配置生效 /etc/init.d/nginx reload
4，在Nginx的默认网站根目录创建一个PHP的测试文件 vim /usr/share/nginx/www/info.php
phpinfo();
?>
5，打开浏览器输入http://127.0.0.1/info.php
你可以看见PHP5已经通过FPM/FastCGI工作了，具体可看Server API那行。向下滚动可以看见所有的模块在PHP5中都是可用的，MySQL还没有被列出来，意味着MySQL还没支持PHP5。
1，让MySQL支持PHP5，我们可以安装php5-mysql包。其余的包，我们可以按需安装所需要的包，用apt-cache search php5列出PHP的包，看下那个是你所需要的。
2，选择一些你所需要的包，象这样安装：
apt-get install php5-mysql php5-curl php5-gd php5-intl php-pear php5-imagick php5-imap php5-mcrypt php5-memcache php5-ming php5-ps php5-pspell php5-recode php5-snmp php5-sqlite php5-tidy php5-xmlrpc php5-xsl
3，重启PHP-FPM
/etc/init.d/php5-fpm restart
4，打开浏览器，输入http://127.0.0.1/info.php，看下你安装的包是不是已经被支持了。
vim /etc/php5/fpm/php-fpm.conf 或在 vim /etc/php5/fpm/conf.d/下做更详细的配置，不懂真人的默认就行了 ，也不优化了。
我的配置文件：
server {
listen 80 ; ## listen for ipv4; this line is default and implied
root /web/example;
index index.php index.html index.htm;
# Make site accessible from http://localhost/
server_name 218.198.177.252 example.com ; //这个和apache一样的啦，写域名就行了
location / {
# First attempt to serve request as file, then
# as directory, then fall back to index.html
try_files $uri $uri/ /index.html;
# Uncomment to enable naxsi on this location
# include /etc/nginx/naxsi.rules
}
location /doc/ {
alias /usr/share/doc/;
autoindex on;
allow 127.0.0.1;
deny all;
}
# Only for nginx-naxsi : process denied requests
#location /RequestDenied {
# For example, return an error code
#return 418;
#}
#error_page 404 /404.html;
# redirect server error pages to the static page /50x.html
#
#error_page 500 502 503 504 /50x.html;
location = /50x.html {
root /web/example;
}
location ~ .php$ { //nginx处理静态的页面，动态的转给FastCGI处理
# fastcgi_split_path_info ^(.+.php)(/.+)$;
# # NOTE: You should have "cgi.fix_pathinfo = 0;" in php.ini
#
# # With php5-cgi alone:
fastcgi_pass 127.0.0.1:9000;
# # With php5-fpm:
# fastcgi_pass unix:/var/run/php5-fpm.sock;
fastcgi_index index.php;
include fastcgi_params;
}
# deny access to .htaccess files, if Apache's document root
# concurs with nginx's one
#
location ~ /.ht {
deny all;
}
}
看下效果了，如过你的不成功，自己检查下….
参考资料：
1，http://www.howtoforge.com/installing-nginx-with-php5-and-php-fpm-and-mysql-support-on-ubuntu-11.10
2，http://www.howtoforge.com/installing-nginx-with-php5-and-php-fpm-and-mysql-support-on-ubuntu-11.10-p2
3，张宴的《实战Nginx：取代Apache的高性能Web服务器》