How to Connect a Raspberry Pi to WiFi
Built-in WiFi on a computer is a feature and a security hazard. Being conscious of it and taking control of it are two good steps on the way to better Raspberry Pi operations. In this article, we’ll take a look at two different methods of controlling the WiFi feature on a Raspberry Pi. Method One: […]
Read MoreHow to Fix a Broken SD card socket on Raspberry PI
Turns out that $35 computers are fragile! Ugh. My raspberries get a lot of abuse. I’m pretty hard on stuff, but I don’t usually BREAK it! This happened when I dropped this card and it landed edgewise on its SD card. Well, waste not, want not! I gotta fix this. A little McGuyvering and I […]
Read MoreHow to Move root to a USB drive
You may have gotten burned by an SD card failing in one of your Raspberries after putting in a lot of hard work. Frustrating, I know. Don’t ask how I know! SD cards trade speed for reliability. If you want something that can stand constant reading and writing, you’re look for a USB drive. I […]
Read MoreHow to Install saltstack minion on a Raspberry PI
saltstack is an awesome configuration management tool to ensure that you have complete control over the configuration of all of the computers in your environment. It is an enterprise-class tool, run by very large companies with very many computers. Big companies like eBay, LEGO, and Liberty Mutual! I have a bunch of raspberry pi computers, […]
Read MoreHow to Fix Minions that Can’t Find a New Replacement salt-master Server
Emergency Scenario: Need to reestablish security between salt master and minions. Too much tickering around and I’ve broken my salt-master server. No problem, right? Just spin up a raspberry, install the SaltStack master software on it and let the minions find the new server. All you have to do is make sure that the new […]
Read MoreHow to Fix locale Problems on Raspberry PI
How to fix messages about locale settings: perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LANGUAGE = (unset), LC_ALL = (unset), LANG = “en_GB.UTF-8” are supported and installed on your system. perl: warning: Falling back to the standard locale (“C”). Do you keep seeing these warnings? Do they bug you […]
Read MoreHow to Move Raspbian swapfile to USB
Running your raspberry pi from SDcard works, but has its foibles. For one, consistent reading and writing to and from an SDcard is a sure recipe for failure. Sure, the little memory cards are fast and cheap, but they don’t take well to this kind of abuse. Especially the unrelenting i/o of a swapfile. Better […]
Read MoreHow to Really Disable IPv6 on Raspberry PI
Oh, I know, I know. Internet Protocol version 6 is the future and the answer to my dreams. Why would I ever want to shut it off?!? I know, right? I’ve heard it all before! My ISP still doesn’t even offer it. Whatever. Nobody uses it and it just creates a lot of chatter on […]
Read MoreHow to Turn off Bluetooth on Raspberry PI
Bluetooth technology offers convenience – from hands-free phone calls to wireless file-sharing to playing music on a vehicle’s speakers. But leaving your Bluetooth on all the time can be dangerous, and hackers are exploiting the technology to access private information, spread malicious software, and more. BlueBorne, an “attack vector” that can infect iOS, Android, Windows, and Linux […]
Read MoreHow to Create and Use Passwordless Logins on LINUX
If you’re comfortable that you’ve got a strong firewall and password on it, you can preshare keys between all of your raspberries! That way, when you ssh from pi to pi, you don’t have to constantly type your password on each pi. The process is fairly simple. Key based authentication in SSH is called “public […]
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