Category Archives: Linux

Solution to this week’s NPR puzzle using simple Linux commands, again

Intro As I understood it, this week’s NPR puzzle is as follows. Think of a figure from the Bible with five letters. Move each letter three back, e.g., an “e” becomes a “b.” Find the Biblical figure which becomes an … Continue reading

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Linux tip: how to enable remote syslog on SLES

Intro I write this knowing I still don’t know anything to speak of about syslog, but, sometimes you gotta act without knowing. I needed to send syslog to somewhere in a big hurry so I figured out the absolute minimum … Continue reading

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Future project idea: Interplanetary file system, IPFS

Intro If I had more time and more energy, what I’d like is to explore the Interplanetary Filesystem, perhaps put up a server and create some objects. It seems right up my alley as I was an early adapter and … Continue reading

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The IT Detective Agency: the vanishing certificate error

Intro I was confronted with a web site certificate error. A user was reluctant – correctly – to proceed to an internal web site because he saw a message to the effect: I tried it myself with IE and got … Continue reading

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Whois information without the pushy hard sell tactics

Intro Did you ever want to learn about a domain registration but were put off by the hard sell tactics that basically all web-based whois searches subject you to? Me, too. Here’s what you can do. The details Linux – … Continue reading

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Raspberry Pi as Retro Arcade Games emulator

Intro I am not going to attempt to provide a guide as there are much better guides out there than anything I can produce. In addition to the arcade function, we wanted to display a slidedeck when not being used … Continue reading

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Measuring bandwidth on Checkpoint Gaia

Intro Sometimes you don’t have the tools you want but you have enough to make do. Such is the case with the command line utilities of the CLI of Checkpoint Gaia. It’s like a basic Linux. The company I consult … Continue reading

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Multiple IPs on the Raspberry Pi

Intro In my previous post I showed how to turn a Raspberry Pi plus USB camera into something like an IP camera. In the course of that work I found it wasn’t so easy as it was in the past … Continue reading

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Raspberry Pi USB webcam turned into IP camera

Intro Why would you even want to do this when you can buy a native IP webcam for less? I’m not sure, but i found myself in this situation so it could happen to others, and I found some things … Continue reading

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A first taste of OpenCV on a Raspberry Pi 3

Intro I’ve done a few things to do some vision processing with OpenCV on a Raspberry Pi 3. I am a rank amateur so my meager efforts will not be of much help to anyone else. My idea is that … Continue reading

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