Jan 25, 2022 · nftables is the modern Linux kernel packet classification framework. nftables is the successor to iptables. It replaces the existing iptables, ip6tables, arptables, and ebtables framework. x_tables is the name of the kernel module carrying the shared code portion used by iptables, ip6tables, arptables and ebtables thus, Xtables is more or less ...

Apr 21, 2020 · Is there a way that I can use the nftables firewall to route traffic to amazon prime (primevideo.com or 13.32.45.99) around the VPN? Currently I only allow outbound traffic from the LAN to exit via the vpn, but there must be a way to also allow traffic to/from just this site over WAN interface. VPN is called tun0 using openvpn.

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May 15, 2022 · @FrankSamuelson 390 is the (decimal) number used to do load balancing in the referred article, in everyone's case it's different, in my case I use decimal value 2, which equivalents to hex value 0x2, in the above case the author uses fwmark 1, thus in the nftables rule it should read ip daddr @marker counter ct mark set 1, I think he uses 390 ...

May 26, 2020 · You can quickly tell whether iptables or nftables is in use by looking at the output of iptables -V. Not 100% optimal as it still requires a little output parsing, but quite straight forward. Not 100% optimal as it still requires a little output parsing, but quite straight forward.

Apr 12, 2021 · Using nftables, I want to rate-limit the traffic which goes to the VM by filtering the bridge traffic at layer 2, keeping in mind that the limit must only apply to traffic from outside the host and that no limit must apply for traffic from the host itself to the VM. I am almost there, but I am fighting with a detail which stops the show (see ...

Aug 1, 2019 · For nftables, I found nft -f /etc/nftables.conf, but the rules are not flushed* prior to restoring them from /etc/nftables.conf. Is there a one-liner that flushes nftables rules and restores them from a file? *Note that any rules already loaded are not automatically flushed.

Aug 11, 2023 · We have all of our servers running Ubuntu, and my boss does not want us to bring in a different package management system he has to learn, so we would like to use Ubuntu 22.04 to set up NAT. Ubuntu 22.04 ships with nftables, and I would like to use that. I found several guides for nftables NAT online, but none of them mention IPv6.

Jul 14, 2020 · iptables is deprecated and going away. If you have iptables rules, they should have been automatically copied to the corresponding nft tables. We are all going to have to learn nftables; you may as well start now. –

Sep 25, 2021 · For a generic ruleset, one can ask nftables to do a route lookup in advance using the fib expression instead of waiting for the routing stack to do it. This allows to involve the (future) output interface despite not existing yet (routing decision …