https://lead-devops.blackdevhub.online/en/tags/nftables/Recent content in Nftables on Lead DevOpsHugoen-USFri, 04 Sep 2026 00:00:00 +0000https://lead-devops.blackdevhub.online/en/posts/nftables-modern-firewall-linux/Fri, 04 Sep 2026 00:00:00 +0000https://lead-devops.blackdevhub.online/en/posts/nftables-modern-firewall-linux/<div class="td-callout td-callout--warning" role="note"> <div class="td-callout__title"><i class="td-callout__icon fa-solid fa-triangle-exclamation" aria-hidden="true"></i><span class="td-callout__label">Warning</span></div> <div class="td-callout__body"> <p>Before changing nftables, make sure you have physical or console access to the server. A misconfigured input chain can block SSH and lock you out.</p> </div> </div><p>nftables replaced iptables in the Linux kernel starting with version 3.13. If you&rsquo;re still writing rules in iptables style, it&rsquo;s time to reconsider. nftables performs better, has built-in dual-stack IPv4/IPv6 support, and lets you manage the entire ruleset as a whole instead of entering commands one by one.</p>