A secure, feature-rich, customizable embedded Linux network appliance for use in a variety of network topologies. Although it can be used in other ways; its primarily used as a Internet gateway, router, firewall, and wireless access point.

LEAF documentation wiki
http://bering-uclibc.zetam.org

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Networking

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User Reviews

  • very useful project, thanks!

  • I started using Linux in late 1998. I started using LEAF (as LRP) in about May 2000. I tracked down the original article I read, that was the inspiration for my project: "Linux Firewall On A 486: A Guard-Penguin For Your DSL Or Cable Modem Connection" By Eric House & Henry Kingman http://web.archive.org/web/20000510042003/http://www.zdnet.com/zdhelp/stories/main/0,5594,2503199,00.html I recall building a Pentium I system with 12 or 24 MB of mem, one floppy drive, and two excellent identical DEC Tulip 10/100 NICs. (This is all used hardware with "new" dates ranging from 1995-1998.) No keyboard or monitor except temporarily for setup. No hard drive or other writable storage device. The hardware mostly came from Goodwill; we had a Goodwill computer outlet in our town at that time. The system has been up continuously for 11 years, except for rare power outages and upgrades. Software has been upgraded a few times, recently from LEAF Bering-uClibc 2.3.1 (2005) to 4.1.1 (2011). The inspiration for this latest software upgrade was the failure of the CD-ROM drive, and the troubleshooting I had to do to fix it. I realized my LEAF install was two major versions out of date. The hardware in my LEAF Firewall has all been upgraded: The chassis from AT to ATX, MB from Pentium I to Pentium II/III MB with a P2 333 CPU, mem to 384 MB (max for MB). Then dual floppies, then CD-ROM + floppy. Two identical Realtek Gigabit NICs are in use now. The interesting hardware upgrade was when my original P2 333 fan started buzzing, I went looking for a replacement fan for this slotted CPU. At the time, the cheapest, most expensive, and only, fan, at $10, came with a PIII 500 CPU attached to it. Nice and quiet, that P3 500 has been running at 450 MHz (max for MB) for many years, since the early 2000s. I thought I would be managing logs for this system forever, but the reality is I hardly ever look at the logs, I know the thing is doing its job, firewalling my broadband Internet connection. It just works. It has saved me great stress over the years by virtue of what I *haven't* had to do to stay secure on the Internet. Thank you, LEAF Project.

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Additional Project Details

Languages

French, English, German

Intended Audience

Advanced End Users, System Administrators

User Interface

Web-based, Console/Terminal

Programming Language

Unix Shell, C

Registered

2000-10-29