OpenWrt has an associated package manager, opkg, which allows to install additional services. Find more information about the file system architecture in the OpenWrt documentation. While the stock firmware is usually read-only, OpenWrt comes with a writeable filesystem thanks to a clever solution that combines OverlayFS with SquashFS and JFFS2 filesystems to allow installation of packages to enhance functionality. Writeable file systemĪnother highlight is the writeable filesystem. There are some optional extensions available for LuCI to add even further configuration choices. Besides configuration, LuCI provides a lot of additional information like real time graphs, system logs, and network diagnostics. LuCI is a lightweight, extensible web GUI written in Lua, which enables an exact configuration of your device. OpenWrt can be configured remotely by command line (SSH) or using LuCI, a GUI configuration interface.
OpenWrt comes with all the useful features a good router should have like a DNS server ( dnsmasq), Wifi access point and client functionality, PPP protocol for modem functionality and, unlike with the standard firmware, everything is fully configurable. It is mainly used as a replacement for the original firmware on home routers of all kinds.
OpenWrt is a Linux-based, open source operating system targeting embedded network devices. If you want more configuration options, but don't want to spend for a professional device you should take a look at an alternative firmware such as OpenWrt.
Such interfaces are often oversimplified as they are made for casual users. Your router at home has most likely a web-based interface for configuration purposes. Such devices are usually responsible to route packets between your local devices (smartphone, PC, TV, and so on) and provide access to the world wide web through a built-in modem. If you're reading this article from home, you are probably connected with a LTE/5G/DSL/WIFI router.
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