Category Archives: Raspberry Pi

Automating guest wireless access for monitoring purposes with Raspberry Pi

Posted on April 26, 2017 by john | 29 views

Intro I decided to monitor guest wireless access to the Internet using a Raspberry Pi. By that I mean a basic, binary, is it working now or not response. The back end is a Cisco wireless LAN Controller (WLC). Like … Continue reading →

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WAN load-balancing routers

Posted on April 23, 2017 by john | 32 views

Intro I got an offer for $20/month broadband access from Centurylink. It got me to thinking, could I somehow use that as a backup connection to my current cable ISP? How would that work? Could I use a Raspberry Pi … Continue reading →

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Use Raspberry Pi to explore mDNS

Posted on February 14, 2017 by john | 62 views

Intro I am confounded by the Bonjour field on my d-Link DCS-931L IP webcam. I should be able to use it to se my desired hostname, but it doesn’t take. Why? The details Having a Raspberry Pi on the same … Continue reading →

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Roll your own dynamic DNS update service

Posted on October 13, 2016 by john | 273 views

Intro I know my old Cisco router only has built-in support for two dynamic DNS services, dyndns.org and TZO.com. Nowadays you have to pay for those, if even they work (the web site domain names seem to have changed, but … Continue reading →

Posted in CentOS, DNS, Linux, Network Technologies, Raspberry Pi, Security, Web Site Technologies | Tagged , , , | Leave a comment

Roll your own domain drop catching service using GoDaddy

Posted on September 27, 2016 by john | 397 views

Intro I’m after a particular domain and have been for years. But as a matter of pride I don’t want to overpay for it, so I don’t want to go through an auction. There are services that can help grab … Continue reading →

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

Posted on September 1, 2016 by john | 48 views

Intro Every now and then the weekend puzzle is particularly amenable to partial solution by use of simple Linux commands. I suspected such was the case for this week’s, and I was right. The challenge for this week Take a … Continue reading →

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The IT detective agency: Raspberry Pi kept dying

Posted on January 20, 2016 by john | 64 views

Intro My Raspberry Pi Model B worked fine in one room in my house. I was very excited to trade it in for a newer and faster Raspberry Pi model 2. I just re-used the existing power adapter because it … Continue reading →

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What I’m working on now: Raspberry Pi Touch Display

Posted on January 18, 2016 by john | 89 views

Intro I’ve been waiting for a decent, inexpensive display for the Raspberry Pi and now they make one. http://www.mcmelectronics.com/product/83-16872 I’m one of the lucky ones – I got one before it was put on backorder! Anyway it’s just $60 plus … Continue reading →

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Building a Four Monitor Media Show using Raspberry Pis

Posted on July 7, 2015 by john | 226 views

Intro This is the paper a student wrote under my guidance. Building a Four Monitor Media Show using Raspberry Pis The first page Link to full article References My write-up concerning our novel use of the Pi Presents program, which … Continue reading →

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Raspberry Pi visual alerting with Pibrella

Posted on May 19, 2015 by john | 79 views

I just came across this article: http://www.itworld.com/article/2919325/personal-technology/website-monitoring-with-a-raspberry-pi-for-nighttime-alerts.html?phint=newt%3Ditworld_linux&phint=idg_eid%3Db4ed050ca62ad3f6d5c69e8448d945d7#tk.ITWNLE_nlt_linux_2015-05-19 I wish I had thought of it first! I’m in a similar situation – I constantly get emails and TXT messages overnight so I have to put my phone in airplane mode. A … Continue reading →

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