Created
March 4, 2022 21:39
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| iptables -D INPUT -j cloudflare | |
| iptables -F cloudflare | |
| iptables -N cloudflare | |
| iptables -A INPUT -j cloudflare | |
| ip6tables -D INPUT -j cloudflare | |
| ip6tables -F cloudflare | |
| ip6tables -N cloudflare | |
| ip6tables -A INPUT -j cloudflare | |
| for i in `curl https://www.cloudflare.com/ips-v4 -L`; do iptables -I cloudflare -p tcp -m multiport --dports http,https -s $i -j ACCEPT; done | |
| for i in `curl https://www.cloudflare.com/ips-v6 -L`; do ip6tables -I cloudflare -p tcp -m multiport --dports http,https -s $i -j ACCEPT; done | |
| iptables -A cloudflare -p tcp -m multiport --dports http,https -j DROP | |
| ip6tables -A cloudflare -p tcp -m multiport --dports http,https -j DROP |
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For blocking other ports except 80 (http) and 443 (https), you can just add/replace protocols on the iptables command.
Example:
--dports http,https,1337