Alpine Linux根本没有任何默认位置。文件/etc/nginx/conf.d/default.conf说:

# Everything is a 404
location / {
    return 404;
}

# You may need this to prevent return 404 recursion.
location = /404.html {
    internal;
}

替换成像root /var/www/localhost/htdocs这样的一行来指向你想要的目录。然后sudo service nginx restart重新启动。

Debian上Nginx的默认目录是/var/www/nginx-default。

可以查看“/etc/nginx/sites-enabled/default”文件

并找到

server {
        listen   80 default;
        server_name  localhost;

        access_log  /var/log/nginx/localhost.access.log;

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

根节点是默认位置。

nginx的默认web文件夹取决于你如何安装它，但通常它在这些位置:

/usr/local/nginx/html
/usr/nginx/html

默认值与nginx编译时configure脚本的prefix选项有关;下面是一些来自Debian的奇怪的例子:

% nginx -V | & tr ' ' "\n" | fgrep -e path -e prefix
--prefix=/etc/nginx
--conf-path=/etc/nginx/nginx.conf
--error-log-path=/var/log/nginx/error.log
--http-client-body-temp-path=/var/lib/nginx/body
--http-fastcgi-temp-path=/var/lib/nginx/fastcgi
--http-log-path=/var/log/nginx/access.log
--http-proxy-temp-path=/var/lib/nginx/proxy
--http-scgi-temp-path=/var/lib/nginx/scgi
--http-uwsgi-temp-path=/var/lib/nginx/uwsgi
--lock-path=/var/lock/nginx.lock
--pid-path=/var/run/nginx.pid

随后，root的默认值被设置为html目录(根据root指令的文档)，它恰好在prefix中，可以通过查看简单配置文件中的$document_root变量来验证:

# printf 'server{listen 4867;return 200 $document_root\\n;}\n' \
    >/etc/nginx/conf.d/so.10674867.conf

# nginx -s reload && curl localhost:4867
/etc/nginx/html

然而，像Debian这样的邪恶发行版似乎对它进行了相当大的修改，以让你获得额外的娱乐:

% fgrep -e root -e include /etc/nginx/nginx.conf
    include /etc/nginx/mime.types;
    #include /etc/nginx/naxsi_core.rules;
    #passenger_root /usr;
    include /etc/nginx/conf.d/*.conf;
    include /etc/nginx/sites-enabled/*;

% fgrep -e root -e include \
    /etc/nginx/conf.d/*.conf /etc/nginx/sites-enabled/*
/etc/nginx/conf.d/so.10674867.conf:server{listen 4867;return 200 $document_root\n;}
/etc/nginx/sites-enabled/default:   root /usr/share/nginx/www;
/etc/nginx/sites-enabled/default:       # include /etc/nginx/naxsi.rules
/etc/nginx/sites-enabled/default:   #   root /usr/share/nginx/www;
/etc/nginx/sites-enabled/default:   #   include fastcgi_params;
/etc/nginx/sites-enabled/default:   # deny access to .htaccess files, if Apache's document root
/etc/nginx/sites-enabled/default:#  root html;
/etc/nginx/sites-enabled/default:#  root html;

所以，在这个Debian实例中，你可以看到根目录最终被设置为/usr/share/nginx/www.

但是，正如您在示例服务器配置中看到的，它将通过http提供$document_root值，配置nginx非常简单，您可以在一两行代码内编写自己的配置，指定所需的根以满足您的确切需求。

如果你使用的是Ubuntu 14.04，你可以在以下路径找到nginx www目录:

yusuf@yusuf-he:/usr/share/nginx/html$ pwd
/usr/share/nginx/html
yusuf@yusuf-he:/usr/share/nginx/html$

对于nginx/1.4.6 (Ubuntu)

/etc/nginx$ cat /etc/nginx/sites-available/default | grep -i root
- root /usr/share/nginx/html;