nginx root 什么意思

在 Nginx 中，root 指令用于指定服务器上的根目录。当客户端请求的 URL 路径匹配到 Nginx 服务器上的某个 location 时，Nginx 会将 root 指令指定的根目录与 URL 路径拼接起来，然后返回对应的文件。例如，如果 root 指令指定的值为 /usr/share/nginx/html，而客户端请求的 URL 路径为 /images/logo.png，则 Nginx 会返回文件 /usr/share/nginx/html/images/logo.png。该指令通常用于配置 Nginx 服务器上的静态资源路径。

相关问题

nginx root alais

Nginx allows you to define root and alias directives in its configuration to handle file serving.

The `root` directive is used to specify the root directory for a location block. It sets the base directory against which location directives are evaluated. For example:

server {
    ...
    root /var/www/html;
    ...
}

In this case, requests to this server block will be served from the `/var/www/html` directory.

On the other hand, the `alias` directive is used to define a location that is different from the document root directory. It is commonly used when you want to serve files from a specific directory but want to hide the actual path. For example:

server {
    ...
    location /images/ {
        alias /var/www/images/;
    }
    ...
}

In this case, requests to `/images/` will be served from the `/var/www/images/` directory, but the URL will not expose the actual directory structure.

Both `root` and `alias` can be useful for serving static files or handling different file serving requirements in Nginx.

nginx root 相对路径

在Nginx中，root指令用于设置网站的根目录。相对路径是相对于nginx配置文件中的工作目录而言的。

如果你想在Nginx配置文件中使用相对路径，可以这样设置：

server {
    listen 80;
    server_name example.com;
    root /var/www/example.com;

    location / {
        index index.html;
    }

    location /images/ {
        root ../;
    }
}

在这个例子中，根目录是/var/www/example.com。如果你想在/images/目录下使用相对路径，可以设置root指令为../，这样Nginx就会将相对路径解析为/var/www目录下的/images目录。