iptables

https://moelove.info/2022/12/12/聊聊容器网络和-iptables/

https://tonydeng.github.io/sdn-handbook/linux/iptables.html

https://dong-dada.github.io/linux/2021/05/06/iptables.html

https://arthurchiao.art/blog/deep-dive-into-iptables-and-netfilter-arch-zh/#43-mangle-table修改-ip-头

https://tinychen.com/20200414-iptables-principle-introduction/

https://blog.csdn.net/BeiKeJieDeLiuLangMao/article/details/115267230

https://klose911.github.io/html/iptables/state.html

https://explainshell.com/explain?cmd=iptables+-A+INPUT+-p+tcp+--tcp-flags+SYN%2CRST%2CACK%2CFIN+SYN+-j+ACCEPT++%23+%C3%A4quivalent+zu%3A+--syn