変更後は sudo nft -f /etc/nftables.conf で再読み込み。 【4. iptables 互換レイヤーとの関係】 Ubuntu 24.02 LTS では iptables コマンドも iptables-nft 互換モードで動作。 旧スクリプト移行時は iptables-save > rules.v4 でエクスポートし、iptables-translate で ...

Iptables, more properly referred to as “iptables/netfilter” because of the two modules that are involved — the userspace module “iptables” and the kernel ...

「Linuxでファイアウォール設定といえばiptablesだけど、書き方が難しそう…」 「UFWは使ってるけど、CentOSやRockyではiptablesを直接設定する場合もある」 iptablesは、Linuxカーネルのパケットフィルタリング機能（netfilter）を使った最もベーシックな ...

Linux's iptables allows powerful firewalls to be implemented at a minute fraction of the cost of many commercial offerings. Basic iptables firewalls are packet filters, which means they inspect the ...

Most of us think of iptables strictly as a firewall tool for keeping remote attackers at bay. But did you know it also can be used to keep local users in line? The experimental match extension owner ...

When you use IPTables to create a firewall for your company's Web server, one way to prevent certain users from accessing the server is to block their IP addresses. Use the "iptables" command to ...