High Availability with Open Source

In the article High Availability with Open Source, Josh Kuo looks at three of the popular Open Source projects to implement High Availability redundancy (failover): Heartbeat, keepalived, and CARP. The article talks about where each of these three excels and some implementation ideas. Josh also mentions the DRBD utility to sync two remote filesystems to aid in an advanced High Availability setup.

The Power of Sun in a Big Blackbox

"Sun has always been somewhat of a mysterious company, from its humble origins at Stanford University through the dotcom boom and out the other side. Its numerous changes of strategic direction have confounded attempts to pin the company down. One thing almost everyone agrees on, however, is that Sun still makes very powerful server hardware. So when I was offered the opportunity to get a guided tour of Sun's new 'Project Blackbox', I jumped at the chance."

An Inside Look Into Building and Releasing MS07-017

"Hey Folks - this is Mike Reavey. We're all glad that MS07-017 - the Security Bulletin that fixes the vulnerability in Animated Cursor Handling - has been released, helping to block attacks on that vulnerability. While we released it within 5 days of being notified of attacks, we have received questions from customers about why it took us 3 months to develop and release the fix for this vulnerability. I wanted to provide some insight into the history of this vulnerability, and while doing so, hopefully provide insight into the overall security update lifecycle, including testing, which consumes the greatest amount of time."

Resurrecting Older Laptops with Alternative Operating Systems

Geeks.com were once more very kind to send us one of their products for a review. Geeks sells cheap laptops --among others-- and so we asked for a low-cost laptop without an operating system in it for the purpose of this review. They sent us the IBM T23, (currently selling for just $299) and an extra 256 MB stick of RAM ($30). We tested the laptop with three different OSes, read on for more.

Access ‘Completely Unaware’ of Legitimate Zeta License

For the first time in its 7 years of existence, some decent statement has been released concering the legality of Zeta. Access, the current owner of Be, Inc.'s IP, states: "We have sent 'cease and desist' letters to YellowTab on a number of occasions, which have been uniformly ignored. If Herr Korz feels that he holds a legitimate license to the BeOS code he's been using, we're completely unaware of it, and I'd be fascinated to see him produce any substantiation for that claim." Update: Bernd Korz has replied on his blog.

Sun’s Solaris Success Paves Way for Next-Gen OS Push

"Sun's CEO Jonathan Schwartz loves to splatter the media with the line that Windows, Red Hat Linux and Solaris stand as the only operating systems of significance in the server kingdom. We've spent the last few years struggling to appreciate the seriousness of that claim. Sun's declining system sales failed to inspire much optimism about the company conquering the data centers of tomorrow with a deflating 'venerable' OS. A couple of recent items, however, have tweaked our view of Schwartz's favored claim. It could well be that Solaris - of all things - provides the 'iPod moment' Sun seeks." In the meantime, Sun upped the speed of some of its SPARC chips.

Visopsys 0.67 Released

Version 0.67 of Visopsys was released today, with all the usual bug fixes and tweaks plus two focus areas of improvement: the IDE/ATA disk driver has been 'modernized' with PCI, DMA, and 48-bit addressing support, resulting in a raw I/O performance increase of up to 700%; additionally the Disk Manager (Partition Logic) has been re-engineered and modularized to support the later addition of new disk label types, as well as improved support for MS-DOS logical partitions (moving, creating out-of-order, etc.). Downloads are here, and the change log is here.

Contiki 2.0 Released

Contiki is an open source operating system for memory-constrained networked embedded systems. Version 2.0 of Contiki has just been released. The 2.0 release is the first release from the 2.x series, which brings many new features: dynamic run-time loading and linking of standard ELF object code files; Rime, a protocol stack designed for low-power radio communication; Cooja, a Java-based network simulator for Contiki; and an updated build system that makes cross-compiling for many platforms easy. See the Contiki website for details and downloads.