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deploy_nginx_php_on_centos.md

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h5ai-时尚的HTTP服务器索引 一文中提到了h5ai 运行环境需要web服务器支持php,所以在软件仓库环境web下载页面部署Nginx 和 PHP。

LEMP stack is a group of open source software to get web servers up and running. The acronym stands for Linux, nginx (pronounced Engine x), MySQL, and PHP.

安装软件仓库

sudo yum install epel-release

也可以使用 nginx 官方网站提供的nginx软件库

安装MySQL

sudo yum install mysql-server
sudo /etc/init.d/mysqld restart

默认的安装包提供了一些交互配置MySQL的脚本

sudo /usr/bin/mysql_secure_installation

作为下载站点,这步跳过

安装nginx

sudo yum install nginx
sudo systemctl start nginx

遇到报错,则使用systemctl status nginx.service检查。

曾经遇到以下报错

Jan 02 23:06:01 testtfs-1-3.sqa.ztt nginx[10545]: nginx: [emerg] socket() [::]:80 failed (97: Address family not supported by protocol)
Jan 02 23:06:01 testtfs-1-3.sqa.ztt nginx[10545]: nginx: configuration file /etc/nginx/nginx.conf test failed
Jan 02 23:06:01 testtfs-1-3.sqa.ztt systemd[1]: nginx.service: control process exited, code=exited status=1
Jan 02 23:06:01 testtfs-1-3.sqa.ztt systemd[1]: Failed to start The nginx HTTP and reverse proxy server.

这是因为主机没有配置支持IPv6,所以需要如下更改注释掉listen [::]:80 default_server;

    server {
        listen       80 default_server;
        #listen       [::]:80 default_server;
        server_name  _;
        root         /usr/share/nginx/html;

安装PHP

sudo yum install php-fpm php-mysql

配置PHP

编辑 /etc/php.ini ,修改 cgi.fix_pathinfo=11 改成 0

cgi.fix_pathinfo=0

cgi.fix_pathinfo 设置为1,则php解析器将尽可能处理请求相近的文件,这会导致安全隐患。如果设置为0,则要求解析器完全匹配文件路径,这样更为安全。

升级 PHP

h5ai-时尚的HTTP服务器索引 中,要求PHP 5.5以上版本。在CentOS 7平台,当前还只提供了 5.4.16版本不能满足要求。所以需要通过第三方安装仓库。

参考 PHP 5.6 on CentOS/RHEL 7.2 and 6.8 via Yum,使用第三方webtatic提供的软件包

rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm

yum install php56w-fpm

如果要替代已经安装的php-fpm则执行以下命令(不需要执行yum install php56w-fpm,就会自动替换已经安装的php-fpm

yum install yum-plugin-replace
yum replace php-common --replace-with=php56w-common

配置 nginx

设置 /etc/nginx/nginx.conf ,将 worker 处理进程设置为16(我这里设置为处理数量的一半) ,或者设置成auto则自动配置成和处理器相同的树枝

配置nginx默认虚拟主机 ,编辑 /etc/nginx/nginx.conf

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

编辑 /etc/php-fpm.d/www.conf

user = nginx
group = nginx

将默认的apache用户和组替换成nginx

启动

sudo systemctl restart php-fpm
sudo systemctl restart nginx

参考