Why nftables instead of iptables? Thenftablesis developed byNetfilter, the same organization that currently maintains iptables. It was created as a remedy to the problems withiptables, namely scalability and performance. Apart from a new syntax and some upgrades, you’ll find that it functions very...
单个nftables可以执行多个动作:iptables中通过匹配只能执行单个动作,但在nftables 规则中可以包含0或多个expressions(用于匹配报文),以及1或多个statements,每个expression会测试一个报文是否匹配特定的payload字段或报文/流的元数据。多个expressions会从左到右作线性评估,如果第一个expression匹配成功,则继续评估下一个expressi...
Unlike iptables, nftables do not have predefined tables or chains, which goes toward improving performance. In nftables, rules can take multiple actions, as opposed to iptables’ limitation to a single action per rule. nftables comes with an inet address family that allows you to easily create ...
Performance improvement. What this PR does / why we need it: This PR add partialSync to kube-proxy nftables mode similar to the iptables mode. It allows to significantly improve performance and resource usage. In a test kind cluster creation of 10K services, 2 endpoints each, takes ~25m bef...
Hi all, especially @openwrt/packages-write, for the next OpenWrt release firewall4 is considered as a replacement of the current iptables based firewall package. While the configuration stays within /etc/config/firewall, packages using i...
Most IPTables libraries have an API for "add this rule only if it doesn't already exist", but that does not seem as useful in nftables (or at least "in nftables as used by Kubernetes-ish components that aren't just blindly copying over old iptables APIs"), because chains tend to have...