ikkeben
Verified User
CSf is slowing down things for sure if ranges or even country lists , it al;so seems to depend on the host network you are in while we have had before a vps n o problems after move to other hoster ( takeover) from old one it was a problem! IN logs more errors time outs and so on.The advantage is less resources if I'm not mistaken. The CSF deny list creates iptables lines which are always loaded, so using resources.
Edit:
After removing , disabling the ip list country's problem was gone then
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