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iptables (and/or the successor tool nftables ) is the user-space utility program that allows a system administrator to configure the IP packet filter rules of the Linux kernel firewall, which is implemented as different Netfilter modules. (summary from Wikipedia ) Since iptables and nftables are a user-space utility programs intended to be used by people, by
Asked · Aug 26
answered · Aug 26
I have an issue with IPv6 on my server. I have nginx configured to listen on port 443 from IPv4 and IPv6. And it works great: my webiste is available form Internet with TLS enabled. Things get complicated when I activate nftables: when I am accessing my website from IPv4 it works, but when I access it from IPv6 connections time out :( Output of sudo nft list