The best way of using iptables for blocking a large number of IP-addresses is by using ipset. It acts as a "database" of IPs, allowing iptables to quickly look up an IP and decide whether to block it or not.
How to block spam IP iptables
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26-06-2022 - |
题
My server is getting hammered with spamming. How do I block these two IP addresses from sending emails? What's the iptables command to block these IP addresses?
Thanks!
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