{
  "@context": "https://schema.org",
  "@type": "TechArticle",
  "@id": "https://anchorfact.org/kb/kb-2026-00265",
  "headline": "iptables / nftables",
  "description": "iptables (legacy) and nftables (modern, since kernel 3.13) are Linux firewall frameworks based on Netfilter hooks. nftables replaces iptables with unified syntax, better performance, and IPv4/IPv6 handling. Used to create packet filtering rules (allow/deny traffic).",
  "dateCreated": "2026-05-22T14:59:47.605Z",
  "dateModified": "2026-05-22T14:59:47.605Z",
  "author": {
    "@type": "Organization",
    "name": "AnchorFact"
  },
  "publisher": {
    "@type": "Organization",
    "name": "AnchorFact",
    "url": "https://anchorfact.org"
  },
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "anchorfact:confidence": "high",
  "anchorfact:generationMethod": "human_only",
  "citation": []
}