limit-req and greedy UAs

[Grant]

> limit_req works with multiple connections, it is usually configured per IP
> using $binary_remote_addr. See
> http://nginx.org/en/docs/http/ngx_http_limit_req_module.html#limit_req_zone
> - you can use variables to set the key to whatever you like.
>
> limit_req generally helps protect eg your backend against request floods
> from a single IP and any amount of connections. limit_conn protects against
> excessive connections tying up resources on the webserver itself.


Perfectly understood.  Thank you Richard.

- Grant