How does urlregexps work?

[AnderssonPeter]

So I'm trying to write a urlregexps that blocks all requests that contain /../ but I can't get it to work.

urlregexps:
- regexp: "\\.\\."
  mode: block
- regexp: "/\\.\\."
  mode: block
- regexp: ".*\\.\\..*"
  mode: block

Question number 2, does this just block the request or does it cause a ban?
If I add

urlregexps:
- regexp: "/no"
  mode: block

It works until I call /no after that all requests are yield 403.

[tomMoulard]

To block all requests that contain .., I would do it directly using Traefik.
I would create a router PathRegexp(`\.\.`) that redirect to noop@internal.
Note that the PathRegexp matcher will be available from v3.0 and forward.

As for making the plugin ban custom regexp on url, the plugin should output some DEBUG logs when enabled that show if a request was matched or not.