ToDo: Prusa I3 MK2 enclosure and mods // posted 1 year ago.

While waiting on my shinny new Original Prusa i3 MK2 printer I am already working on a housing case and mods, thanks to and reddit there are plenty of good resources to get this rolling. The enclosure will help to trap all the plastic melting fumes, 120mm fans with fume extractor filters, LEDs, endoscope camera pointing to the print head and another on the side of the print bed to record the entire print.

Here's our IKEA shopping list for the enclosure..

Tagged as hardware.

Network-wide AdBlock alternative using a Raspberry Pi // posted 1 year ago.

I had a Raspberry Pi 2 Model B kicking around now that I have switched over to the new RPi3, so I was looking for ideas on re-purposing this unit. Thanks to reddit I have found a good reason to wipe the dust off this unit and use it as a pi-hole.

Tagged as sysadmin.

ToDo: Smart RFID door lock using a Raspberry Pi? // posted 1 year ago.

I want to create an automated gate lock with some "smarts" inside it, including remote unlock/lock and notifications. Below is some project research notes I will use and update as I make progress.

Identifying the functions that my smart lock will require...

Tagged as hardware.

Compile check-mk-raw-1.2.8p4 from source on rpi3 // posted 1 year ago.

In this guide, I will show you how to compile check_mk (check-mk-raw-1.2.8p4.cre) from source on the Raspbian OS (Jessie Lite with Kernel 4.4) running on a Raspberry Pi 3 Model B. By doing this you can tap into Raspberry Pi's hardware ecosystem and use many of its hardware sensors for your monitoring infrastructure. We will start very basic, proving out we can compile and run a stable check_mk environment in a master/slave configuration for redudency.

Make sure your OS is fully up to date.

Tagged as sysadmin.

Getting A+ report rating on // posted 1 year ago.

Today I wanted to SSL secure my site using LetsEncrypt. I found quite a bit of misleading information as it relates to CentOS 7. After some research, here is what worked for my site and scored A+ on ssllabs.

  • yum install git
  • git clone certbot
  • cd /certbot
  • ./certbot-auto --apache -d -d

In CentOS7 the apache log directory is /var/log/httpd but the certbot-auto script was looking for /var/log/apache2 which caused the certbot script to fail with...

Tagged as sysadmin.