Wall Street firms increasingly are buying into Linux, but some still need convincing that open source licensing and support models won't make using the technology more trouble than its worth.

Sabayon Linux today announced that it will partner with NetCraft Communications, a global provider of computer infrastructure management services and makers of Versiera, Remote System Management and Monitoring Software. As part of this strategic alliance, both companies will leverage their technologies, including Sabayon Entropy to provide broader software distribution methods.

We called Red Hat on Monday to address speculation that its RHX (Red Hat Exchange) program was about to go tits-up. Red Hat responded to the concerns today with a blog post.

Mobile open source player Funambol is certainly giving us plenty to watch these days with its Affero GPL licensing, its use of ad-supported mobile phone access to email and general bet on mobile open source software.

Why server downtimes and flame wars seem to start always on Friday afternoon? As you probably know, this time the well-intentioned Ari Jaaksi got slashdotted and a new wave of discussion around Nokia and its open source involvement began.

IBM said today that it doesn't plan to open-source its DB2 database, despite a published report quoting a company executive in the U.K. saying that an open-source move might become necessary.

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While most major server vendors take a “wait and see” approach to Ubuntu, a major Canadian Web host says the server operating system is ready for prime time. Indeed, Cirrus Tech is now offering Ubuntu on its server hosting plans. Here’s a closer look at Cirrus Tech’s announcement, and the state of Ubuntu on the server.