Is this the correct iptables to work with Cloudflare?

Question

linux

Tell me, is this correct and sufficient iptables to work with Cloudflare?
Cloudflare + Hiding real ip.

-I INPUT -p tcp -m multiport --dports 80,443 -s 103.21.244.0/22 -j ACCEPT
-I INPUT -p tcp -m multiport --dports 80,443 -s 103.22.200.0/22 -j ACCEPT
-I INPUT -p tcp -m multiport --dports 80,443 -s 103.31.4.0/22 -j ACCEPT
-I INPUT -p tcp -m multiport --dports 80,443 -s 104.16.0.0/13 -j ACCEPT
-I INPUT -p tcp -m multiport --dports 80,443 -s 104.24.0.0/14 -j ACCEPT
-I INPUT -p tcp -m multiport --dports 80,443 -s 108.162.192.0/18 -j ACCEPT
-I INPUT -p tcp -m multiport --dports 80,443 -s 131.0.72.0/22 -j ACCEPT
-I INPUT -p tcp -m multiport --dports 80,443 -s 141.101.64.0/18 -j ACCEPT
-I INPUT -p tcp -m multiport --dports 80,443 -s 162.158.0.0/15 -j ACCEPT
-I INPUT -p tcp -m multiport --dports 80,443 -s 172.64.0.0/13 -j ACCEPT
-I INPUT -p tcp -m multiport --dports 80,443 -s 173.245.48.0/20 -j ACCEPT
-I INPUT -p tcp -m multiport --dports 80,443 -s 188.114.96.0/20 -j ACCEPT
-I INPUT -p tcp -m multiport --dports 80,443 -s 190.93.240.0/20 -j ACCEPT
-I INPUT -p tcp -m multiport --dports 80,443 -s 197.234.240.0/22 -j ACCEPT
-I INPUT -p tcp -m multiport --dports 80,443 -s 198.41.128.0/17 -j ACCEPT
-A INPUT -p tcp --dport 443 -j DROP
-A INPUT -p tcp --dport 80 -j DROP

Answer 1

Yes
The current list is always here
You can even stir up a script in cron to auto-update the rules so as not to oversleep