“pf + CARP” article at Hakin9 magazine
I have writting an article about how to deploy a network-based firewall based on OpenBSD packet filter (pf) providing high-availability combining Common Address Redundancy Protocol (CARP) and state-table synchronization (pfsync). It describes a case study with a real hands-on configuration to understand how it works.
More information at Hakin9 magazine on “Knock Knock Knock at Firewalls’s door” issue.


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