Cryptocurrency and the IRS
One for you, one for me, and 0.15366BTC for Uncle Sam.
Technology
PoE, PoE+, and Passive PoE
If you’re befuddled by every Poe other than Edgar Allen, after this short blog post, you’ll be confused… nevermore. I’ve been installing a lot of POE devices recently, and the different methods for providing power over Ethernet cables can be very confusing. There are a few standards in place, and then there’s a method that isn’t a standard, but is … Read more
Grepping is Awesome. Just Don’t Glob it Up!
This article covers some grep and regex basics. There are generally two types of coffee drinkers. The first type buys a can of pre-ground beans and uses the included scoop to make their automatic drip coffee in the morning. The second type picks single-origin beans from various parts of the world, accepts only beans that have been roasted within the … Read more
Ansible Part 4: Putting it All Together
Roles are the most complicated and yet simplest aspect of Ansible to learn. I’ve mentioned before that Ansible’s ad-hoc mode often is overlooked as just a way to learn how to use Ansible. I couldn’t disagree with that mentality any more fervently than I already do. Ad-hoc mode is actually what I tend to use most often on a day-to-day … Read more
Ansible Part 3: Playbooks
Playbooks make Ansible even more powerful than before. To be quite honest, if Ansible had nothing but its ad-hoc mode, it still would be a powerful and useful tool for automating large numbers of computers. In fact, if it weren’t for a few features, I might consider sticking with ad-hoc mode and adding a bunch of those ad-hoc commands to … Read more
Ansible Part 2: Making Things Happen
Finally, an automation framework that thinks like a sysadmin. Ansible, you’re hired. In my last article, I described how to configure your server and clients so you could connect to each client from the server. Ansible is a push-based automation tool, so the connection is initiated from your “server”, which is usually just a workstation or a server you ssh in to from … Read more
Ansible Part 1: DevOps for the Non-Dev
I’ve written about and trained folks on various DevOps tools through the years, and although they’re awesome, it’s obvious that most of them are designed from the mind of a developer. There’s nothing wrong with that, because approaching configuration management programmatically is the whole point. Still, it wasn’t until I started playing with Ansible that I felt like it was … Read more
Have a Plan for Netplan
Ubuntu changed networking. Embrace the YAML. If I’m being completely honest, I still dislike the switch from eth0, eth1, eth2 to names like, enp3s0, enp4s0, enp5s0. I’ve learned to accept it and mutter to myself while I type in unfamiliar interface names. Then I installed the new LTS version of Ubuntu and typed vi /etc/network/interfaces. Yikes. After a technological lifetime of entering my server’s … Read more
Password Managers. Yes You Need One.
If you can remember all of your passwords, they’re not good passwords. I used to teach people how to create “good” passwords. Those passwords needed to be lengthy, hard to guess and easy to remember. There were lots of tricks to make your passwords better, and for years, that was enough. That’s not enough anymore. It seems that another data … Read more
The New Ride
My beloved 1994 Chevy S-10 unfortunately drives very much like a 1994 pickup truck with 200K miles on it. Don’t get me wrong, I love my truck. The thing is, now that we’re in the city, when I commute to work in the morning it feels very much like I’m going to die at any moment. My truck shimmies, it … Read more