Onno (VK6FLAB)

Anything and everything Amateur Radio and beyond. Heavily into Open Source and SDR, working on a multi band monitor and transmitter.

#geek #nerd #hamradio VK6FLAB #podcaster #australia #ITProfessional #voiceover #opentowork

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Joined 2 years ago
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Cake day: March 4th, 2024

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  • I’ve been self employed for over 25 years as an ICT professional, writing software, troubleshooting, training, doing research, data analysis, designing databases, reverse engineering code, writing reports, helping startups, installing satellite communications, rescuing ransomware victims, building Arctic capable GPS trackers, doing events, public speaking, voice overs and plenty more.

    It’s a tough gig with lots of ups and downs. You have to be extremely self motivated and persistent. Work comes and goes. Sometimes you’re so busy that there’s not enough hours in the day, other times you have nothing coming in for weeks, months or even years. If you have a holiday, everything costs twice as much because you’re spending money while not earning any, and if you’re not earning enough, there’s no holiday pay, sick leave or retirement funds.

    I’ve seen some interesting and scary software in production and met and worked with an utterly amazing variety of humanity.

    It’s not for everyone and if you asked me today if I’m better off mentally, physically and financially as a result of this, I’d be hard pressed to give you an answer.






  • This is the job for the OS.

    You can run most Linux systems with stupid amounts of swap and the only thing you’ll notice is that stuff starts slowing down.

    In my experience, only in extremely rare cases are you smarter than the OS, and in 25+ years of using Linux daily I’ve seen it exactly once, where oomkiller killed running mysqld processes, which would have been fine if the developer had used transactions. Suffice to say, they did not.

    I used a 1 minute cron job to reprioritize the process, problem “solved” … for a system that hadn’t been updated for 12 years but was still live while we documented what it was doing and what was required to upgrade it.