域名合并

server {
    listen 80;
    server_name example.com;

    location /blog {
        proxy_pass http://blog.example.com;
        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;
    }

    location /shop {
        proxy_pass http://shop.example.com;
        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 blog.example.com;

    location / {
        return 301 http://example.com/blog$request_uri;
    }
}

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

    location / {
        return 301 http://example.com/shop$request_uri;
    }
}