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What is the difference between ufw and iptables?

Posted on 2023-02-19

ufw and iptables are closely related. In Ubuntu, ufw is a front-end interface to iptables that provides simpler commands and options for setting iptables rules and managing the firewall. When you set up a firewall with ufw, it actually updates the iptables ruleset. Thus, you can use ufw to manage iptables rules without editing the iptables ruleset directly.

ufw 和 iptables 有密切的關係。在 Ubuntu 中,ufw 是 iptables 的前端界面,它提供了更簡單的命令和選項,用於設置 iptables 規則和管理防火牆。當你使用 ufw 設置防火牆時,實際上它會更新 iptables 規則集。因此,你可以使用 ufw 管理 iptables 規則,而無需直接編輯 iptables 規則集。

Ubuntu 中的 ufw 工具。它是一個簡單的防火牆工具,可用於在 Ubuntu 上輕鬆配置和管理網絡訪問控制。

The ufw tool in Ubuntu. It is a simple firewall tool that can be used to easily configure and manage network access control on Ubuntu.

The rules of ufw are stored in the /etc/ufw directory, which includes a main configuration file ufw.conf and rule files user.rules and user6.rules. The user.rules and user6.rules files contain user-defined rules and can be manually edited to add, delete, or modify rules.

ufw 的規則存儲在 /etc/ufw 目錄中,其中包括一個主配置文件 ufw.conf 和規則文件 user.rules 和 user6.rules。 user.rules 和 user6.rules 文件包含用戶定義的規則,可以手動編輯以添加、刪除或修改規則。

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