多域名虚拟主机配置指南
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在Web开发中，配置一个多域名的虚拟主机是实现多个网站共享同一服务器的重要步骤，使用Nginx作为反向代理服务器和PHP作为脚本语言，可以轻松管理多个域名,以下是详细的配置步骤和注意事项。
安装Nginx
确保服务器上已经安装了Nginx，如果尚未安装,可以通过以下命令在Linux系统中安装：
sudo apt-get install nginx
安装完成后,检查Nginx是否已启动：
sudo systemctl status nginx
配置Nginx以支持多域名
Nginx默认支持多域名配置，但需要在配置文件中设置相应的选项，配置文件位于/etc/nginx/sites-available/default或/etc/nginx/sites-enabled目录下。
编辑默认配置文件：
sudo nano /etc/nginx/sites-available/default
在< Nina 1.22.0 >部分添加以下内容：
[Nginx] Nina 1.22.0
添加多域名配置：
<VirtualHost *:80>
listen 80
server_name <域名1>; <域名2>; <域名3>;
</VirtualHost>
配置三个域名：
<VirtualHost *:80>
listen 80
server_name mydomain.com; mysubdomain.com; myadmin.com;
</VirtualHost>
保存并退出编辑器。
配置PHP
为每个域名设置PHP配置以确保安全和性能，创建一个php.ini文件,设置全局PHP参数。
编辑php.ini文件：
sudo nano /etc/php/7.2/php.ini
添加或修改以下内容：
extension=.so extension=lap extension=lib extension=sqlite3 extension=phpseclib3 extension=xmlrpc extension=xml extension=html extension=javascript extension=jquery extension=phpDocumentor extension=phpsbuf extension=phpdoc extension=phphtml extension=phpbb extension=phpseSSID extension=phpSESSID extension=phpSESSID extension=phpSESSID extension=phpSESSID extension=phpSESSID extension=phpSESSID extension=phpSESSID extension=phpSESSID extension=phpSESSID extension=phpSESSID extension=phpSESSID extension=phpSESSID extension=phpSESSID extension=phpSESSID extension=phpSESSID extension=phpSESSID extension=phpSESSID extension=phpSESSID extension=phpSESSID extension=phpSESSID extension=phpSESSID extension=phpSESSID extension=phpSESSID extension=phpSESSID extension=phpSESSID extension=phpSESSID extension=phpSESSID extension=phpSESSID extension=phpSESSID extension=phpSESSID extension=phpSESSID extension=phpSESSID extension=phpSESSID extension=phpSESSID extension=phpSESSID extension=phpSESSID 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