PLANTROON

tech blog

  • Self-hosted email absurdities – public Wi-Fi

    I recently had to travel and use the internet in random locations without the availability of my carrier’s mobile signal. On some public Wi-Fi hotspots, I was unable to send an email. Now of course I thought the problem lies with my server. Who in their right mind would block outgoing destination ports 465 and…

  • Self-hosted email absurdities – sending mail

    Sending email is hard. Yes, that’s right. If you don’t own or control your whole IP subnet and have built-up reputation on it, you aren’t reaching anything other than the recipient’s spam folder. This is why many admins are even saying that self-hosted email is dead, which is partially true. This would make one of…

  • Lock the screen automatically when it turns off on Windows

    I hate how the lock screen works on Windows. This is perhaps an oversight and for me a security issue, so I’ll share some information on how to make it work better. This applies to pretty much all Windows versions in use today as far as I can tell. By default, when Windows turns off…

  • Show Always On Display while charging on Galaxy phones

    It is easily possible to show the Always On Display on Galaxy phones while charging through such option in Settings, but then you lose the ability to show it when tapping the display. Here is a quick tutorial on how to make it show up both ways. So it’s done through setting up a Bixby…

  • Thoughts on Chrome OS

    After a long time of ignoring this platform and only ever having tried CloudReady (which this is based on), I tried to install ChromeOS on some of my older machines. While the older ones like Thinkpad X200 performed poorly as expected, newer machines performed well. I’ll elaborate on a few different points in which I…

  • My personal cloud server upgrades

    About a year ago I decided to revamp my personal cloud. Main objectives were to make it more manageable and use as much pre-made software suites as possible instead of maintaining my own. This article is about what software I chose, which software it replaced as well as reasons why this was done. Oh and…

  • Forza Horizon 5 performance hit on VFIO system

    I am trying to document how much of an impact VFIO has on gaming performance. More benchmarks will come in the future, but for now, let’s look at Forza Horizon 5. I picked Forza Horizon 5 to do these tests as it is somewhat demanding and has a benchmark mode which displays somewhat interesting results.…

  • Moving many btrfs subvolumes to another disk

    As I was migrating my whole system over to btrfs the other day, I came across my docker volume which was already btrfs and using subvolumes. This was of course intentional, however, I had no idea how to properly move those subvolumes to the new disk. Surprisingly, it was somewhat easy. Btrfs has send-receive functionality…

  • How to set Bixby button to turn on flashlight on Galaxy phones

    So we have that somewhat useless Bixby button on Galaxy phones. Now I am not against Bixby, quite the opposite. But I prefer to summon her via voice and use the button for something I commonly need to happen fast – turn on the flashlight. The reason for writing this tutorial is that it was…

  • Recovering some lost information on the Internet

    I will be adding more information as I learn more. This is a summary of the knowledge on the subject I have gained so far. Wayback machine This is an obvious go-to website where you can see historic versions of sites. It is run by Internet Archive non-profit digital library. https://archive.org/web/ Google cache You can…

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