How can I use fail2ban to block a list of Ip's

Installing and Using OpenWrt
1

I know this is not related to openwrt that much but I cannot find proper documentation to block an ipv4 list such as (https://github.com/X4BNet/lists_vpn/blob/main/output/vpn/ipv4.txt) . So user's are slighly restricted from vpns. Thank and pardon me if this the wrong place to ask

2

You're on the right track, but fail2ban is probably the wrong tool on OpenWrt. I'd first take a look at the banip package, see the support thread here banIP support thread I'm pretty sure you can configure it to use that list you link as a "Custom Feed" and get exactly what you want.

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3

I would use and IPSet, and populate it daily using a script.

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