Ubuntu下LNMP环境搭建

安装Nginx

如果已经安装了apache，则需要手动删除。

service apache2 stop
update-rc.d -f apache2 remove
apt-get remove apache2

然后再进行安装Nginx

apt-get install nginx

输入服务器，查看是否Ngnix安装成功。如果成功辉县Ngnix欢迎界面，否则无。

配置Nginx

• 打开配置文件
  vim /etc/nginx/sites-available/default
  修改简要：

在index 中加入index.php；
开启加载php文件的模块；等

具体修改如下：

[...]
server {
        listen 80;
        listen [::]:80 default_server ipv6only=on;

        root /usr/share/nginx/html;
        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 displaying a 404.
                try_files $uri $uri/ /index.html;
                # Uncomment to enable naxsi on this location
                # include /etc/nginx/naxsi.rules
        }

        # Only for nginx-naxsi used with nginx-naxsi-ui : process denied requests
        #location /RequestDenied {
        #       proxy_pass http://127.0.0.1:8080;
        #}

        #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/html;
        }

        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
        #
        location ~ .php$ {
                try_files $uri =404;
                fastcgi_split_path_info ^(.+.php)(/.+)$;
                # 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;
        }
}
[...]

安装mysql

apt-get install mysql-server mysql-client

在安装时，会有弹出窗需要为mysql的root用户设置密码，设置密码即可。

安装php5-fpm

apt-get install php5-fpm

配置php5-fpm

vi /etc/php5/fpm/php.ini  # 打开配置文件
# 将cgi.fix_pathinfo=1修改为0

我为什么要修改这个文件?
具体修改如下：

[...]
; cgi.fix_pathinfo provides *real* PATH_INFO/PATH_TRANSLATED support for CGI.  PHP's
; previous behaviour was to set PATH_TRANSLATED to SCRIPT_FILENAME, and to not grok
; what PATH_INFO is.  For more information on PATH_INFO, see the cgi specs.  Setting
; this to 1 will cause PHP CGI to fix its paths to conform to the spec.  A setting
; of zero causes PHP to behave as before.  Default is 1.  You should fix your scripts
; to use SCRIPT_FILENAME rather than PATH_TRANSLATED.
; http://php.net/cgi.fix-pathinfo
cgi.fix_pathinfo=0
[...]

重新加载php5-fpm

service php5-fpm reload

ngnix默认目录

cd /usr/share/nginx/html
vim phpinfo.php

写入如下代码：

<?php
phpinfo();
?>

检查phpinfo文件，并安装扩展模块

apt-cache search php5  # 搜索php5支持模块命令

安装扩展，可自行选择：

    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

APC是一个自由和开放的PHP操作码缓存器缓存和优化PHP的中间代码。这是类似于其他PHP操作码cachers，如eAccelerator、XCache。这是强烈建议有一个安装加速你的PHP页面。

apt-get install php-apc

重新加载nginx配置和php5-fpm配置

nginx -t              # 测试Nginx配置文件是否正确配置，如果错误会显示错误信息；正确则显示ok
service nginx reload
service php5-fpm reload

如果php5-fpm显示进程已存在，无法重载。
则关闭php5-fpm进程，killall php5-fpm，然后重启/etc/init.d/php5-fpm restart

在URL地址栏输入服务器地址，即可查看已支持的php扩展模块。

114.112.154.151/phpinfo.php  # 我的服务器地址