Lintrack
Lintrack is a GNU/Linux distribution which can be used as:
wireless router
network access server
PPPoE server
HotSpot server
VPN server/client
firewall
traffic shaper
HTTP content filter
OSPF router
PIMv2 (multicast) router
and more – see Features
What makes Lintrack unique is that it is highly integrated and automated by the Flatconf configuration system. Lintrack is mainly administered using an interactive CLI tool, fcc, which makes system configuration easy and fast.
While giving the end user a powerful, high-level interface, Lintrack has still all of the possibilities of traditional Linux administration. What’s more, some functionality may be managed by fcc, and some by die-hard Unix tools, e.g. vim.
Lintrack has also many unique features exclusively developed by the team, like improved MadWiFi driver with better 802.11h support and many bugs fixed, dynamic weighted round-robin Ethernet bonding, RADIUS client with solid-state queue, QoS layer-7 firewall with DiffServ support and basic HTTP advertisements distribution framework, just to name a few.
Currently, they target x86 CPU architectures only, but support for other architectures is planned in near future. A typical installation needs at least 256MB of storage space, but 512MB is recommended.
Download link to the distribution ISO