怎么设置子域名打开不同应用

Type: A 或 CNAME
Host: blog
Value: 你的服务器IP地址或另一个域名
TTL: 默认值

server {
    listen 80;
    server_name example.com;

    location / {
        root /var/www/html;
        index index.html index.htm;
    }
}

server {
    listen 80;
    server_name blog.example.com;

    location / {
        proxy_pass http://localhost:3000; # 假设博客应用运行在3000端口
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
    }
}

server {
    listen 80;
    server_name shop.example.com;

    location / {
        proxy_pass http://localhost:4000; # 假设电商应用运行在4000端口
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
    }
}

sudo systemctl restart nginx