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Owned by Michael

Master Linux infrastructure and DevOps skills with hands-on labs, tools, and community support. Build smarter, faster, and more secure systems.

33 contributions to Linux Infrastructure Academy
I got laid off....
Yup, just like the title says, I got laid off a couple weeks ago. That's extra crazy because I usually have at least 2 jobs and 2 weeks before that, I voluntarily left the first job 🤦🏾‍♂️. What that means now is that I can speak more freely about my employment situation for the last 5 years or so....in general too I guess. Let's start the conversation, I've had a fairly interesting career that could possibly help anyone with aspirations. I'll cheat a little.... 1. After everything I've done, I don't think it was worth it (and I'm in a significantly better situation than most) 2. I'm doing what I can to avoid going back to corporate America My life thus far is open to anyone interested. If enough people show interest, I'll get on a live stream and talk more. See you in the comments....
0 likes • 11d
@Stephen Christie I somewhat expected it. I ran the infrastructure for an entire product line by myself. When they finally hired someone to work under me, the role was outsourced to India. So I figured I was training my replacement. When they let me go, they told me they were cutting cost. I can believe it, I'm not cheap 😎
1 like • 9d
@Mel Baker I probably worked at the second job for 4 years. The first job wanted to put me on a PIP....so I quit. The PIP happened because I don't invent work for myself. If there isn't work to do, I don't do "busy" work.
⚙️ Linux Tip of the Day: The Hosts File
The /etc/hosts file is a fundamental system file that plays a key role in how your Linux machine resolves domain names to IP addresses. It's essentially a local, manually managed DNS table. When you type a hostname like www.google.com into your browser, your system first checks /etc/hosts to see if there's a corresponding IP address listed there before sending a query to an external DNS server. This local check makes resolution extremely fast since no network communication is required. 🎯 Primary Uses * Blocking Websites: This is a common use for parents or system administrators. By mapping a domain to your local machine's loopback address (127.0.0.1), you can effectively prevent access to a site. For example, adding 127.0.0.1 twitter.com will block access to Twitter on your machine. * Local Development: Developers use the hosts file to test web applications before they go live on a public server. By adding an entry like 192.168.1.10 myapp.local, they can access their development server using a user-friendly hostname instead of an IP address. This mimics a live environment. * Network Shortcuts: You can create simple, memorable hostnames for devices on your local network. Instead of remembering 192.168.1.50 for your network printer, you could add 192.168.1.50 printer to your hosts file and simply type printer into your browser or command line to access it. ✍️ Editing the File The /etc/hosts file requires root permissions to edit. You can use a text editor like nano or vim with the sudo command. A good practice is to always back up the original file before making any changes. * Backup: sudo cp /etc/hosts /etc/hosts.bak * Edit: sudo nano /etc/hosts * Add your entries: Add new lines with the format IP_address hostname. * Save and Exit: Press Ctrl+O to save and Ctrl+X to exit in nano. After editing and saving, the changes take effect immediately without needing to restart any services. 🛡️ Important Notes * Comments: Lines starting with a # are ignored by the system and can be used to add comments for clarity. For example, # Blocked for security.
1 like • Jun 6
@Mel Baker DNS over HTTPS just means your browser is using https to check dns versus defaulting to your normal resolver. On the command line, ping youtube.com and see what happens. Sorry ....at the gym....
0 likes • 10d
@Tomasz Rakoczy I think it depends on the order you have in your nsswitch.conf
Vi(m) for windows
I use Fedora for my home PC, but my work PC is windows. I'm thinking of replicating my work flow at home onto my work PC, so using vi/neovim/laszyvim. Has anyone doe this before? if so, what configurations have you done? What setup would you recommend? And was there any gotchas ?
1 like • 12d
Sorry for the delay....I'm working on something. Are you coding? If I'm honest, I really only use vi in init3 on a server. If I have a GUI, I'm probably just using visual code studio. For any new person reading this though....use vi as much as you can in as many scenarios as possible to get good with it.
1 like • 11d
@Alex Ayre No problem. That's what I'm here for. Thanks for joining!
Agentic Development is live (and free)
Quick update for everyone: The Agentic Development course is now built out and available free inside the classroom. This is for anyone trying to use AI agents to build real software without turning every session into: - drift - rabbitholing - token burn - context loss - babysitting - "looks done" work with weak proof The short version: better prompts help, but they are not infrastructure. This course is about building the agentic infrastructure around your work: project memory, contracts, packetized work, testing guardrails, verification, handoffs, and human control. But there are other courses, some with similar ideas, so what makes this course worthwhile? Simple, this course also provides you with an Agentic Development Kit that will help program your agents so you can avoid the headaches above. Start here: https://www.skool.com/linux-infrastructure-academy-5525/classroom/722b11f9 It is free. If you go through Module 1, drop a comment with the failure mode you see most often in your own AI coding workflow.
0 likes • Jul 28
When you're ready @Mel Baker , we can schedule a call. Do you have an agent you're using yet?
1 like • Jul 28
@Mel Baker Sure. And I'm here. It's good that you're a blank slate. The first few modules pretty much go through the issues I found in the process. The middle lessons cover the solution and the end gives you an idea of how to use this infrastructure concept and how it fits into the common dev cycle. So there's a lot of info, don't feel like you have to absorb everything, it's just to set you up for working later and actually being able to get a stable result.
New to Linux
Hi everyone, I just switched over to Zorin OS as my first stop into the linux ecosystem. I joined this community to get a better understanding of how the linux infrastructure works and to start developing my DevOps skills.
2 likes • Jul 20
Ubuntu is my go to Debian... otherwise I've always been CentOS (Rocky), Fedora or Redhat. Welcome!
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Michael Sanderson
4
38 points to level up
@michael-sanderson-2869
IT professional with 20 years of experience in Linux systems

Active 1d ago
Joined Jul 20, 2025
Tampa, FL