ipset

Integrating RBL Database with CSF Firewall

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csf firewall

Note:This guide requires an active RBL Database subscription. DNS-based RBL queries via rbl.malware.expert are free, but downloadable IP blocklists for CSF/IPSET are part of the paid RBL Database service. ConfigServer Security & Firewall (CSF) has a function that allows it to import blocklists and save them to IPTABLES, which is the Linux firewall utility upon … Read more

IPSET with IPTABLES

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ipset with iptables

IPSET is an extension to iptables that allows you to create firewall rules that match entire “sets” of addresses at once. Unlike normal iptables chains, which are stored and traversed linearly, IP sets are stored in indexed data structures, like addresses, networks, (TCP/UDP) port numbers, MAC addresses, interface names or combinations of them in a … Read more