BPFILTER: the next-generation Linux firewall

The Linux community has a continuous drive to enhance the GNU/Linux kernel. When we look at network traffic filtering, we moved from ipchains to iptables. More recently we saw the introduction of nftables. Next in line is BPFILTER, part of the development work for the Linux 4.18 kernel. What is BPFILTER? BPFILTER is short for BPF based packet filtering framework. In other words, it is a framework that does packet filtering and is based on BPF. Interestingly, BPF itself is an acronym […]

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