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Unix Philosophy #12, Rule of Repair: "When you must fail, fail noisily and as soon as possible." This applies to both code and culture; when someone gets stuck and hollers for help, they are helping their community find and fix a participation process bug. However, the new contributor on-ramp pipeline is particularly tricky to debug; potential participants often struggle in silence, giving you no indication of their presence, let alone why they were unable to begin working with your project community.

KDE 4.3 was released in August, 2009, the most recent update to the KDE 4 series. It is a community effort geared towards daily computer users and developers and comes complete with a set of software packages including those for graphics, multimedia, programming, networking, education and gaming. KDE 4 and a wide variety of additional applications are available for Linux, Unix, MacOS X, and Windows under Free Software licenses.

This session will discuss multiple case studies where small business customers have deployed Open Source VoIP (Voice over Internet Protocol - or internet telephony) solutions based on Asterisk to reduce expenses, increase flexibility and solve specific business problems. We will discuss real-world deployments and compare these to proprietary telephone system options. Information will be presented in a format that is appropriate for both technical and business mindsets, and plenty of time will be available for questions. Hawaiian shirts are optional, but not required.

Ruby on Rails gives web developers an interesting combination. Ruby is a very flexible language that allows very compact and readible source code. Rails add a framework that allows the developer to focus on the value adding features of a web application without being slowed down by re-inventing boring details again and again. This presentation will be hands-on allowing partipants to follow the creation of an example application.

This talk is a brief overview of what tools are available for Linux/Unix systems for securing and monitoring the system. It is geared towards people setting up a Linux server on a network. The tools covered range from built in features of Linux to packages available from repositories to packages from third parties. Basic security practices are also covered. While most of this talk covers tools and topics familiar to experienced system admins this overview is critical to anyone contemplating putting a server on the Internet. Don't wait until you get hacked to start thinking about security.

Apache CouchDB is a document-oriented database written in Erlang. It is not a normal RDMS (like PostgreSQL and MySQL) but stores it's information in JSON documents that can be accessed though a RESTful HTTP API. It is similar to Amazon SimpleDB, Google BigTable, and Lotus Notes. Similar to Notes it allows for the creation of applications (written in HTML and JavaScript) that can interact with the data, CouchApps.

Join Marcel as he takes you through a rogues gallery of user-friendly Linux distributions distributions. You'll discover what sets one distribution apart from the other while enjoying a casual, stress-free tour of the various desktops. You'll also learn about popular applications and how these can help ease the transition from that other OS. An essential presentation for anyone considering Linux or trying to ease a loved one from the clutches of proprietary operating systems.

Operating Systems are naturally sticky - so why should one invest the time to evaluate another?

Consider these issues:
• Your file system is out of space - how easy is it to add more capacity?
• Performance is sub-par - how do you troubleshoot?
• Services are failing - how to you diagnose the problem?
• One application is starving the others of network bandwidth - how do you impose some limits?
• Even your mom has the root password to the system - why?

One of the co-developers of Dolphin Smalltalk said: Smalltalk is dangerous. It's a drug. My advice to you would be to don't try it. It could ruin your life. Under the guise of showing you how to make web pages with the open source version of Smalltalk - Squeak - I will speak warmly about the benefits of the first object oriented language: closures; continuations; and, everything being an object. The first sample is always free...

Apache Qpid is an enterprise grade messaging solution with a proven track record and a growing community. It is currently in live production in several large scale financial institutions. Qpid is a multi language implementation of the AMQP protocol (www.amqp.org) with brokers in c++ and java and clients in c++,java,python,ruby and c#. It provides infrastructure for scalable, reliable, secure, low latency messaging that can be used in a myriad of applications not just enterprise messaging.