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technology/applications/network/ufw.md

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+---
+obj: application
+os: linux
+---
+# ufw
+Ufw stands for Uncomplicated Firewall, and is a program for managing a netfilter firewall on [Linux](../../linux/Linux.md). It provides a command line interface and aims to be uncomplicated and easy to use.
+
+## Basic configuration
+
+A very simplistic configuration which will deny all by default.
+```shell
+ufw default deny
+```
+
+The next line is only needed _once_ the first time you install the package:
+```shell
+ufw enable
+```
+
+See status:
+```shell
+ufw status
+```
+
+Enable/Disable
+```shell
+ufw enable
+ufw disable
+```
+
+Allow/Deny ports
+```shell
+ufw allow <app|port>
+ufw deny <app|port>
+```