Create firewall rule for user-agent == empty

i want create firewall rule for user that user-agent == empty.
please write for me to what should i write in value sections when i am creating firewall rule.
i read the answer in below article but i did’t understand the answer.

How to add rules firewall user-agent == empty

so many thanks

Precisely what @sdayman wrote back in July

(http.user_agent eq "")


so many thank to you :slight_smile:
is it true?

You are configuring a user agent rule here, where you can only block specific user agents.

You have to use a firewall rule instead.

2 Likes

I have such a setting and it helps me cut off bots, I set the modeCallenge captcha

In the value field I leave a void