少于1分钟
https://nginx.org/en/docs/http/ngx_http_random_index_module.html
The ngx_http_random_index_module
module processes requests ending with the slash character (‘/
’) and picks a random file in a directory to serve as an index file. The module is processed before the ngx_http_index_module module.
This module is not built by default, it should be enabled with the --with-http_random_index_module
configuration parameter.
location / {
random_index on;
}
Syntax:random_index on | off;
Default: random_index off;
Context: location
Enables or disables module processing in a surrounding location.