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OpenWrt - System Configuration

This manual shows the system configuration of an OpenWrt device.

All articles of the OpenWrt series

AVM FRITZ!Box 4040

AVM FRITZ!Box 4040 is a versatile home router, supporting 802.11ac Wi-Fi and Gigabit Ethernet but has no integrated modem. Instead, the WAN port can be connected to several types of upstream modems like fiber, cable or DSL.

AVM FRITZ!Box 4040 - back

AVM FRITZ!Box 4040 back


OpenWrt website for AVM FRITZ!Box 4040

System Properties

General Settings

OpenWrt Settings


OpenWrt Settings

Time Synchronization

OpenWrt Settings

Language and Style

OpenWrt Settings


You can use a hardware token to easily get access to your OpenWrt device via SSH.
A very detailed manual how to set up a ๐Ÿ”‘ YubiKey is available on my website

SSH Access

OpenWrt Settings

SSH Keys

OpenWrt Settings

HTTP(S) Access

OpenWrt Settings

Scheduled Tasks

Depends on the services running on the OpenWrt device. In the following section some CRON tasks will be created for specific services.

Some examples

*/10 * * * *    /usr/share/wginstaller/wg.sh cleanup_wginterfaces

# Adblock Reload
45 06 * * * /etc/init.d/adblock restart

LED Configuration

OpenWrt Settings

All articles of the OpenWrt series

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Image: Official OpenWrt Logo - https://OpenWrt.org/_media/docs/guide-graphic-designer/OpenWrt-logo-usage-guidelines.pdf