Tag: Free Software

  • Extracting Sky Router Crash Data Amidst Kernel Panics

    Extracting Sky Router Crash Data Amidst Kernel Panics

    I have a Sky broadband connection with fibre into a Sky Router / Sky Hub. I have noticed very short outages of internet service with increasing frequency recently. The outages are short, maybe around 3-5 minutes long but these are annoying enough in the middle of an online meeting or some other synchronous activity. Sometimes […]

  • exim4 upgrades and configuration fragility

    Last night I decided I’d catch up on sysadmin tasks. Some of that was trying to tighten up my spam filtering again. I had got in place a per-user Bayesian filter on spamassassin, which essentially should allow it to learn a much more individual pattern of what each user considers spam. I also had configuration […]

  • Semi Open Book Exams

    Semi Open Book Exams

    A few years ago, I switched one of my first year courses to use what I call a semi-open-book approach. Open-book exams of course allow students to bring whatever materials they wish into them, but they have the disadvantage that students will often bring in materials that they have not studied in detail, or even […]

  • Pretty Printing C++ Archives from Emails

    I’m just putting this here because I nearly managed to lose it. This is a part of a pretty unvarnished BASH script for a very specific purpose, taking an email file containing a ZIP of submitted C++ code from students. This script produces pretty printed PDFs of the source files named after each author to […]

  • OPUS and Assessment 2 – Adding Custom Assessments

    This is a follow on to the previous article on setting up assessment in OPUS, an on-line system for placement learning. You probably want to read that first. This is much more advanced and requires some technical knowledge (or someone that has that). Making New Assessments Suppose that OPUS doesn’t have the assessment you want, […]

  • OPUS and Assessment 1 – The Basics

    OPUS and Assessment 1 – The Basics

    OPUS is a FOSS (Free and Open Source Software) web application I wrote at Ulster University to manage work based learning. It has been, and is used by some other universities too. Among its features is a way to understand the assessment structure for different groups and how it can change over years in such […]

  • Workload Allocation Modelling Update – Scalability

    Workload Allocation Modelling Update – Scalability

    I have been doing some more work on my software to handle Academic Workload Modelling, developing a roadmap for two future versions, one being modifications needed to run real allocations for next year without scrapping existing data, and another being code to handle the moderation of exams and coursework (which isn’t really anything to do […]

  • Boot problems with systemd? Check /etc/fstab

    My (actually this) Debian server failed to boot after a power failure last week, it turns out the graphics card failed too, probably because of the cold and the thermal shock, but replacing the card did not allow the computer to boot. With systemd, if something happens in the boot process, despite some obviously specific […]

  • Manually completing a botched django migration

    I wrote a lot of code for my Workload Allocation system on Friday, and had been developing it on the machine with django’s built in lightweight web server, and a (default) sqlite database backend. In production I decided to use a MySQL backend in case sqlite was, well, too lite. One of the things that […]

  • Workload Allocation Monitoring (WAM) Prototype

    I decided to start writing a workload allocation monitoring system for Higher Education. I found one written as part of a JISC project at Cambridge, but despite my experience with PHP I found it difficult to set-up, a bit crude (sorry) and hard to maintain. It was clearly very flexible, and I wanted something flexible, […]