如何在单个VPS服务器上配置多个域名的解析？

一个VPS如何解析多个域名？详解Nginx与Apache虚拟主机配置方法

主要配置方法概览

详细操作步骤

步骤一：DNS解析配置

域名管理界面示例：
域名列表：

example.com → A记录 → 192.0.2.100
test.com → A记录 → 192.0.2.100
demo.com → A记录 → 192.0.2.100

DNS配置确认：
✓ 所有域名解析到同一IP
✓ TTL设置合理（建议300-3600）
✓ 等待DNS传播完成

步骤二：Nginx虚拟主机配置

# /etc/nginx/sites-available/example.com
server {
    listen 80;
    servername example.com www.example.com;
    
    root /var/www/example.com;
    index index.html index.php;
    
    location / {
        tryfiles $uri $uri/ =404;
    }
}
/etc/nginx/sites-available/test.com  
server {
    listen 80;
    servername test.com www.test.com;
    
    root /var/www/test.com;
    index index.html index.php;
}

# 启用站点配置
sudo ln -s /etc/nginx/sites-available/example.com /etc/nginx/sites-enabled/
sudo ln -s /etc/nginx/sites-available/test.com /etc/nginx/sites-enabled/
测试配置语法
sudo nginx -t
重新加载配置
sudo systemctl reload nginx

# 创建网站目录
sudo mkdir -p /var/www/example.com
sudo mkdir -p /var/www/test.com
设置目录权限
sudo chown -R www-data:www-data /var/www/example.com
sudo chown -R www-data:www-data /var/www/test.com
创建测试页面
echo "Welcome to Example.com" | sudo tee /var/www/example.com/index.html
echo "Welcome to Test.com" | sudo tee /var/www/test.com/index.html

# /etc/apache2/sites-available/example.com.conf
    ServerName example.com
    ServerAlias www.example.com
    DocumentRoot /var/www/example.com
    
    ErrorLog ${APACHELOGDIR}/example.comerror.log
    CustomLog ${APACHELOGDIR}/example.comaccess.log combined