doom'd net

still mucking around with the ol'computer

  • That time when a print server changed it’s own DIP switch settings

    printer

    So it was late ‘95 to early ‘96, and I had just started working full-time at the printer company, with much to learn back then….

    So the director of HR calls me up one morning, when I first walk in the door, to tell me her printer isn’t working.

    My first thought was an issue with the print queue.  Print queue problems were rampant in the mixture of Solaris and Sun OS that was …

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  • A Few Things To Do When First Setting Up a LightSail Instance Running Wordpress

    lightsail

    Amazon’s new Lightsail service is pretty amazing.  For practically nothing, you can have a cloud based server. They offer a lot of options, and a good bit of what’s here will be applicable to any of them running Ubuntu, but this is geared toward the Wordpress instance, Which happens to be running Ubuntu Server.  At first I was a bit disappointed, but as I use it, I find it’s actually pretty close …

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  • That time when an innocent HPUX reference almost got me in trouble for Sexual Harassment.

    hpux

    So it was sometime in the late summer or early fall of 2003, I was installing HPUX on some new servers for a big Oracle upgrade project I was working on for the Bank at the time.

    So I was in the lab where all new server builds happened. And in walks this particularly conservative guy that was on the Windows team.

    I was running some pretty common commands needed to get the system to …

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  • That time when a professor whacked me upside the head with a stack of papers.

    unix lic

    So, around fall of 1998, I was working as a UNIX sysadmin for Tickets.com, and taking classes at CSU trying to get my EE degree.  I had attempted to take the networking class without taking the pre-req UNIX class first.  I figured I was a UNIX admin, had been doing this stuff for a few years at this point, the class would just be a waist of my time and money. Well, it turns …

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  • The Bitscope, Linux and the Python

    bitscope

    The Bitscope DSO program can save files of the read data in a simple CSV format.  There are many easy ways to handle those files.

    In the manual, they describe how to import them into MS Excel, they also talk about the limitations of Excel, which really isn’t the best tool for this job. However, it seems that AWK would be perfect. Using Python and numpy might have some interesting possibilities as well. Even …

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  • Calculating Convergent Infinite Series on a Non-CAS Calculator

    convergent series

    Some times it’s necessary to calculate a series, be it a summation or integral that has infinity as one it’s boundaries.  Well, most modern scientific calculators aren’t really Computer Algebra Systems and therefor don’t understand what infinity is. But, depending on the accuracy needed, and how fast it converges, normally using 100 or 1000 is good enough. Sometimes, it does take a little bit of tweaking.  But, in general, it’s …

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  • Creating m3u Playlist Files for the MZD Connect Systems in My Mazda 3

    connect

    One of the cool things about the 3rd Gen Mazda 3’s is the Connect infotainment system.  One of it’s capabilities is to play MP3 files off of a thumb drive inserted into one of it’s USB ports.

    So, I took an empty thumb drive I had sitting around, and loaded up a bunch of MP3 files on it. And sure enough, it can play the songs.  It will let you select by …

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  • Using LVM To Upgrade a Disk In a Linux System

    Linux rules!

    Using LVM to upgrade a disk in a Linux system is very easy, assuming everything is set up correctly ahead of time.

    Obviously everything ( except /boot and if applicable, /boot/efi ) needs to be in LVM. And the disk being upgraded should be 100% LVM, but it might work otherwise.

    You’ll also need free port, SATA, SAS, SCSI, what ever your system uses, along with appropriate power.

    The way my Linux system is configured …

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  • How Tall is My Flagpole Anyway?

    flag

    Using the method used by Thales to find the height of the Cheops pyramid eons ago, you can find the height of anything that the sun casts a shadow of.  Oddly, it seems that few people I know know this trick. I’m pretty sure I learned it in 6th grade geometry, maybe I taught it to my self, I did learn most of what I know about mathematics and physics on my own. But …

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  • Downloading your data from both Facebook and Google

    I’ve been backing up my Facebook data for years this way, and since I’ve recently started using Google more, I decided it was time to start backing up that data too.  Of course, even if you don’t care about backups, you might still be interested in what they actually have one you, this will give you a chance to review that.

    The actual process is very simple for both, but you have …

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