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。

转储配置:

$ nginx -T
...
server {
    ...
    location / {
        root   /usr/share/nginx/html;
        ...
    }
    ...
}

你得到的可能是不同的，因为它取决于你的nginx是如何配置/安装的。

引用:

-T选项 -T选项

更新:关于是否/何时将-T选项添加到nginx的问题有一些混淆。vl-homutov于2015年6月16日在手册页中记录了它，这成为v1.9.2发行版的一部分。甚至在发行说明中也提到了。自那以后，t选项出现在每个nginx版本中，包括Ubuntu 16.04.1 LTS上可用的版本:

root@23cc8e58640e:/# nginx -h    
nginx version: nginx/1.10.0 (Ubuntu)
Usage: nginx [-?hvVtTq] [-s signal] [-c filename] [-p prefix] [-g directives]

Options:
  -?,-h         : this help
  -v            : show version and exit
  -V            : show version and configure options then exit
  -t            : test configuration and exit
  -T            : test configuration, dump it and exit
  -q            : suppress non-error messages during configuration testing
  -s signal     : send signal to a master process: stop, quit, reopen, reload
  -p prefix     : set prefix path (default: /usr/share/nginx/)
  -c filename   : set configuration file (default: /etc/nginx/nginx.conf)
  -g directives : set global directives out of configuration file

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。

对于Ubuntu和docker映像:

 /usr/share/nginx/html/

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

*默认页面web分配在var/www/html *默认配置服务器etc/nginx/sites/ available /nginx.conf

server {

    listen 80 default_server;
    listen [::]:80 default_server;

    root /var/www/html;

    index index.html index.php;

    server_name _;

    location /data/ {
        autoindex on;
    }

    location /Maxtor {
        root /media/odroid/;
        autoindex on;

    }

        # This option is important for using PHP.
    location ~ \.php$ {
        include snippets/fastcgi-php.conf;
        fastcgi_pass unix:/var/run/php/php7.1-fpm.sock;
    }
}

*默认配置服务器etc/nginx/nginx.conf

内容. .

user www-data;
worker_processes 8;
pid /run/nginx.pid;
include /etc/nginx/modules-enabled/*.conf;

events {
    worker_connections 768;
    # multi_accept on;
}

http {

    ##
    # Basic Settings
    ##

    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout 65;
    types_hash_max_size 2048;
    # server_tokens off;

    # server_names_hash_bucket_size 64;
    # server_name_in_redirect off;

    include /etc/nginx/mime.types;
    default_type application/octet-stream;

    ##
    # SSL Settings
    ##

    ssl_protocols TLSv1 TLSv1.1 TLSv1.2; # Dropping SSLv3, ref: POODLE
    ssl_prefer_server_ciphers on;

    ##
    # Logging Settings
    ##

    access_log /var/log/nginx/access.log;
    error_log /var/log/nginx/error.log;

    ##
    # Gzip Settings
    ##

    gzip on;

    # gzip_vary on;
    # gzip_proxied any;
    # gzip_comp_level 6;
    # gzip_buffers 16 8k;
    # gzip_http_version 1.1;
    # gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;

    ##
    # Virtual Host Configs
    ##

    include /etc/nginx/conf.d/*.conf;
    include /etc/nginx/sites-enabled/*;
}


#mail {
#   # See sample authentication script at:
#   # http://wiki.nginx.org/ImapAuthenticateWithApachePhpScript
# 
#   # auth_http localhost/auth.php;
#   # pop3_capabilities "TOP" "USER";
#   # imap_capabilities "IMAP4rev1" "UIDPLUS";
# 
#   server {
#       listen     localhost:110;
#       protocol   pop3;
#       proxy      on;
#   }
# 
#   server {
#       listen     localhost:143;
#       protocol   imap;
#       proxy      on;
#   }
#}

IP客户端的默认访问日志var/log/nginx/…