Free Tool
nftables DDoS Protection Rule Generator
Generate modern nftables rulesets for Linux DDoS protection. nftables replaces iptables with better performance, atomic rule updates, and a cleaner syntax.
Select your protections and click Generate Rules to create your nftables ruleset.
Warning: Always test nftables rules before applying to production. Use
nft -c -f nftables.conf to check syntax without applying. Keep out-of-band access available. On systemd systems, rules persist via /etc/nftables.conf and systemctl enable nftables.
nftables vs iptables - Why Migrate?
| Feature | iptables | nftables |
|---|---|---|
| Atomic rule replacement | No (rule-by-rule) | Yes (entire ruleset) |
| Performance at scale | Linear matching | Optimized set lookups |
| IPv4 + IPv6 unified | Separate commands | inet family handles both |
| Named sets/maps | Requires ipset | Built-in |
| Kernel API | Legacy xtables | Modern nf_tables |
| Syntax | Flat CLI flags | Structured, readable |
| Tracing/debugging | Limited | Built-in trace support |
| Distro default (2024+) | Being deprecated | Default in most distros |
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