nginx和phpmyadmin 404

Question

我在我的raspberry pi 2上为phpmyadmin创建了一个单独的配置.Webserver正在使用nginx。

server {
       listen 80;
       listen [::]:80;

       server_name 192.168.178.26;

       location /pma/ {
    alias /usr/share/phpmyadmin/;
    allow 192.168.178.28;
    deny  all;
}

location ~ ^/pma/(.+\.php)$ {
    alias /usr/share/phpmyadmin/$1;
    fastcgi_pass   unix:/tmp/phpfpm.sock;
    fastcgi_index  index.php;
    fastcgi_param  SCRIPT_FILENAME  $request_filename;

    # From fastcgi_params
    fastcgi_param  QUERY_STRING       $query_string;
    fastcgi_param  REQUEST_METHOD     $request_method;
    fastcgi_param  CONTENT_TYPE       $content_type;
    fastcgi_param  CONTENT_LENGTH     $content_length;
    fastcgi_param  SCRIPT_NAME        $fastcgi_script_name;
    fastcgi_param  REQUEST_URI        $request_uri;
    fastcgi_param  DOCUMENT_URI       $document_uri;
    fastcgi_param  DOCUMENT_ROOT      /usr/share/phpmyadmin; # <-- Changed
    fastcgi_param  SERVER_PROTOCOL    $server_protocol;
    fastcgi_param  GATEWAY_INTERFACE  CGI/1.1;
    fastcgi_param  SERVER_SOFTWARE    nginx/$nginx_version;
    fastcgi_param  REMOTE_ADDR        $remote_addr;
    fastcgi_param  REMOTE_PORT        $remote_port;
    fastcgi_param  SERVER_ADDR        $server_addr;
    fastcgi_param  SERVER_PORT        $server_port;
    fastcgi_param  SERVER_NAME        $server_name;
    fastcgi_param  REDIRECT_STATUS    200;
 }
}

所以这是我的配置，当我去192.168.178.28/pma/我只获得404页面。我添加了allow和deny，因为我希望phpmyadmin只能在本地网络中访问。我希望有人可以帮我解决这个404错误。