Gentoo FreeBSD

Most of you will have read, or maybe even used, Debian GNU/kFreeBSD, which is an operating system consisting of FreeBSD kernel with a GNU userland, but there’s also Gentoo FreeBSD.

So what is Gentoo FreeBSD? According to the Gentoo FreeBSD project page, Gentoo/FreeBSD (or Gentoo/FBSD, or G/FBSD) is an effort to create a complete FreeBSD-based Gentoo system, sharing the complete administration facilities of Gentoo with the reliability of the FreeBSD kernel and userland. An experimental, yet incomplete release have been done, and it’s possible to install Gentoo/FreeBSD following the install guide.

I don’t think I’ve referred to Gentoo FreeBSD before.

Traffic Shaping with pfSense and HFSC (video)

This screencast demonstrates the use of a pfSense device for traffic shaping on a typical home network, with the goals of minimizing latency and maximizing throughput. In particular, we use a three-tier queue configuration where a parent speedboost queue on each interface contains leaf queues that catch all the traffic. The speedboost queues use HFSC’s non-linear service curve to match the behavior of the comcast speedboost. The leaf queues are configured to partition the available bandwidth, and automatically allow ‘borrowing’ when there is no contention.


Section links:

  • Installation / Setup: 3min:01sec
  • Monitoring: 6min:30sec
  • Traffic Shaping: 15min:34sec

Some handy FreeBSD howto’s

Below we have some useful howto’s and tutorials collected over the last few weeks









 

 

pc-bsd logo 100x100

New PC-BSD development snapshot – 2012/06/22

Yet it seems there is no official announcment for this snapshot, but you can find on PC-BSD mirrors page a new release !

It’s the release of the 2012-06-22, there is no changelog/readme so I can’t tell what’s new exactly in, but I’m sure there is a lot of bug fixes !

You can get the iso/usb images by choosing a mirror on this page : http://www.pcbsd.org/getmirrors.php?url=9-STABLE-20120622

There is a lot of work done from the PC-BSD 9.0 release ! The installer is now easier and cleaner, the AppCafé has been modifed too, and each new snapshot include the latest userland and kernel.

New FreeBSD Foundation funded project: Capsicum improvements

The FreeBSD Foundation has announced that Pawel Jakub Dawidek has been awarded a grant to develop a comprehensive userspace framework for writing Capsicum-based applications, building on the kernel features originally developed by the University of Cambridge and Google Research. Pawel was rewarded grants previously for the HAST and auditdistd projects.

This framework will include a Capsicum runtime linker and component library providing sandboxed versions of key higher-level system libraries. Components will both be sandboxed, improving resistance to vulnerabilities, and also easily available for delegation to sandboxed applications, such as the Chromium web browser. The prototype libcapsicum developed by Cambridge will be analyzed and updated based on lessons learned in implementing Capsicumised software packages, such as hastd and auditdistd. Funding for this project will be provided by the FreeBSD Foundation matched 100% by the Google Open Source Program Office, in support of open source technology transition of Capsicum.

“A continuing challenge in security is to find solutions that not only fix the problems but also can be applied to existing technologies: attractive though the notion is, we are not going to persuade the world to rewrite everything! This is why we at Google are pleased and excited to support the continuing development of Capsicum, which radically improves the security of UNIX based systems whilst allowing a continuous migration path from today’s mechanisms to tomorrow’s,”

said Ben Laurie, Google Senior Staff Software Engineer.

“I’m very excited to be able to work on Capsicum. Some of my software is already using Capsicum, so I’m fully aware of the great potential of this framework. This technology is so much superior than the current attempts to provide sandboxing using tools like chroot(2) or unprivileged user credentials. No matter how corny it sounds, I strongly believe Capsicum can make the Internet a safer place.”

said Pawel.

This project will conclude in August, 2012