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Enable/Disable Output of Audio Input in Ubuntu

After hooking up my old-school turntable to the input jack on my desktop PC, I thought I’d be easily able to output the sound from my speakers. I could even see the audio playing as an input and could record it using Audacity, but not output it directly. By default Ubuntu does not load the […]


I’ve been busy lately on a number of projects, one of which is a programming class I am currently taking. The class itself is interesting, we are learning about the different types of programming languages. For our latest project, we were tasked with writing a simple program in Pascal. Pascal isn’t used too much any […]


This is my admittedly minor but I hope useful contribution to the TinyOS development community. TinyOS is an Operating System and development framework for Wireless Sensor Networks and other platforms which has a small footprint and is very energy conscious. The TinyOS source code is available for free online for many operating systems, however it takes […]


I put this together for a project in a class I am taking, and thought it would be handy for others as well. The goal is to access a Windows filesystem and reset the password for a user, for example if someone forgot the Administrator password or the account is locked out from too many […]


It is easy to do an in-place upgrade of Ubuntu Server from 8.10 ‘Intrepid Ibex‘ to 9.04 ‘Jaunty Jackalope‘. You can do this remotely over ssh or whatever you use to control your server. Best practices say to make sure to backup your server before doing the upgrade. I’ve done several servers this way with […]


Running sudo apt-get upgrade, I started getting this error: Reading package lists… Done W: GPG error: http://ppa.launchpad.net intrepid Release: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY 313D312748A22A95 W: You may want to run apt-get update to correct these problems Ah ha! But apt-get update is the command causing […]


I recently took upon the task of setting up a presentation display in the lobby of our building. This display had previously used an old computer running Windows 2000, and displayed a fairly simple PowerPoint presentation with a few frames, mostly a schedule for anyone coming into the building. We did a renovation and this […]


It is possible to install Active Directory authentication in Ubuntu 8.04 and later. The Likewise Open packages accomplish this task, and it is actually pretty easy. Just a note – when installing Ubuntu, do not add a user named “administrator” as I did. This makes it impossible to join the Ubuntu workstation to the domain […]