Brutkey

Dennis Faucher :donor: :mastodon:
@dennisfaucher@infosec.exchange

Husband, Dad, IT Translator. Gloucester, MA
WWT PSE.
#vExpert '20-'24. πŸ–₯πŸ–₯️☁☁️
Hobbies:
πŸ“·πŸ“·πŸ€–πŸ€–πŸ”πŸ”πŸ₯ΎπŸ₯Ύ
Heads up for followers: I believe in
β™₯β™₯️&πŸ§‘β€πŸ”¬πŸ§‘β€πŸ”¬
New favorite hashtags:
#SilentSunday, #MushToDon, #MossToDon, #Bees, #SnootBoopDay, #MonDog, #Caturday, #searchable
Thanks
@jerry@infosec.exchange donor


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πŸ‘€about.me (links)
https://about.me/dennisfaucher
πŸ“·IG
https://www.instagram.com/dennis_faucher/
πŸ§‘β€πŸ’»GitHub
https://github.com/DennisFaucher
πŸ–₯️vExpert
https://vexpert.vmware.com/directory/2456
✍️Blog
https://blog.faucher.net
Dennis Faucher :donor: :mastodon:
@dennisfaucher@infosec.exchange

Hi. I'm a little apprehensive to post an #introduction as it's hard to define a person in a few paragraphs.

I'm Dennis. My pronouns are he/him. I am an LGBTQ+ ally
πŸ³οΈβ€πŸŒˆπŸ³οΈβ€πŸŒˆπŸ³οΈβ€βš§οΈπŸ³οΈβ€βš§οΈ. My last name is pronounced like the French verb "foΚŠΚƒeΙͺ". My Father's family is from Quebec and came over from France in the 1600s. I live in Massachusetts and grew up in Connecticut.

I'm married and have three adult children who live in Canada and Scotland. We have lots of pets including one dog, three cats, and five chickens. The chickens surprised me with how much personality they have. My lovely wife is a jeweler, so if you need help with that art LMK.

For hobbies, I love photography, kayaking/canoeing, hiking, and of course poking at technology stuff in my home lab including virtualization, containers, robots, ML, DL. I was a Boy Scout Assistant Scout Master for six years. That was a hoot.

At work, I am in pre-sales. Those are the folks that are supposed to know every random corner of IT enough to not look like a deer in the headlights when a customer says "Can you help me design and implement a transmogrifier?" I love the company I work for. The culture and people are
amazing. Really.

Mentorship is important to me and during any given week I am volunteering my time mentoring others.

Feel free to say hi and/or DM me about anything that I might be able to help with.

Dennis Faucher :donor: :mastodon:
@dennisfaucher@infosec.exchange

Yeah, don't choose the Windows 95 skin πŸ™‚πŸ™‚


Dennis Faucher :donor: :mastodon:
@dennisfaucher@infosec.exchange

Just wrote this quickie shell script to create and launch Debian13 KVM VMs. Just provide the hostname. Sharing in case someone else can use this.

The template is the debian13 nocloud image that I expanded to 20 GB.
https://cloud.debian.org/images/cloud/trixie/latest/debian-13-nocloud-amd64.qcow2

==========

$ cat create_debian13_vm.sh
#!/bin/bash
if [ -z "$1" ]; then
echo "Error: No argument supplied."
echo "Usage: $0 <vm_name>"
exit 1
fi

echo "Creating root drive from template... (sudo password required)"
sudo cp /var/lib/libvirt/images/debian13-20GB-template.qcow2 /var/lib/libvirt/images/$1.qcow2

echo "Customizing root drive with root password, hostname, updates, dennis user, ssh, sudo..."
sudo virt-customize --add "/var/lib/libvirt/images/$1.qcow2" --root-password password:root --hostname "$1" --firstboot-command 'apt update && apt upgrade -y && apt install openssh-server -y && useradd -m -p "" dennis && chage -d 0 dennis && sudo usermod -aG sudo dennis'

echo "Installing and starting VM..."
sudo virt-install --name $1 --ram 4096 --vcpus 2 --disk path=/var/lib/libvirt/images/$1.qcow2,format=qcow2,bus=virtio --import --os-variant debian13 --network bridge=br0 --graphics spice --noautoconsole

virsh --connect qemu:///system list --all

#virtualization #KVM #QEMU #Debian #Linux

Dennis Faucher :donor: :mastodon:
@dennisfaucher@infosec.exchange

WTF? Why is LI sending me notifications about Puzzle Games?

Dennis Faucher :donor: :mastodon:
@dennisfaucher@infosec.exchange

New Blog - Boot a VM in 3 Seconds

Woof. This made my brain hurt over a few weeks between delighting customers, but I persevered.

Firecracker is the tiny, lightweight VM technology behind AWS Lambda "serverless" Function as a Service. You can run these tiny, tiny, fast VMs on-premises if that solves a business problem.

Anyway, here is an actual working tutorial that I wrote as most of the major tutorials out there did not work for me. Enjoy.

https://blog.faucher.net/2025/08/boot-vm-in-3-seconds-firecracker.html

#Virtualization #Serverless #Lambda #Linux #Firecracker

Dennis Faucher :donor: :mastodon:
@dennisfaucher@infosec.exchange

Postscript

I wish I had found this easy peasy firectl tutorial first
πŸ™‚πŸ™‚

https://s8sg.medium.com/quick-start-with-firecracker-and-firectl-in-ubuntu-f58aeedae04b

Dennis Faucher :donor: :mastodon:
@dennisfaucher@infosec.exchange

New Blog - Boot a VM in 3 Seconds

Woof. This made my brain hurt over a few weeks between delighting customers, but I persevered.

Firecracker is the tiny, lightweight VM technology behind AWS Lambda "serverless" Function as a Service. You can run these tiny, tiny, fast VMs on-premises if that solves a business problem.

Anyway, here is an actual working tutorial that I wrote as most of the major tutorials out there did not work for me. Enjoy.

https://blog.faucher.net/2025/08/boot-vm-in-3-seconds-firecracker.html

#Virtualization #Serverless #Lambda #Linux #Firecracker

Dennis Faucher :donor: :mastodon:
@dennisfaucher@infosec.exchange

Just created this custom #Alfred trigger on my Mac. Searches command-not-found for me.
#Linux

Dennis Faucher :donor: :mastodon:
@dennisfaucher@infosec.exchange

Internet tutorials are like buying a tent at a discount store - you need to buy three tents to assemble enough parts that are not broken into one working tent.

I just experienced this stitching together the parts from 3 firecracker tutorials to get one working VM
πŸ™‚πŸ™‚

Dennis Faucher :donor: :mastodon:
@dennisfaucher@infosec.exchange

Hi. I'm a little apprehensive to post an #introduction as it's hard to define a person in a few paragraphs.

I'm Dennis. My pronouns are he/him. I am an LGBTQ+ ally
πŸ³οΈβ€πŸŒˆπŸ³οΈβ€πŸŒˆπŸ³οΈβ€βš§οΈπŸ³οΈβ€βš§οΈ. My last name is pronounced like the French verb "foΚŠΚƒeΙͺ". My Father's family is from Quebec and came over from France in the 1600s. I live in Massachusetts and grew up in Connecticut.

I'm married and have three adult children who live in Canada and Scotland. We have lots of pets including one dog, three cats, and five chickens. The chickens surprised me with how much personality they have. My lovely wife is a jeweler, so if you need help with that art LMK.

For hobbies, I love photography, kayaking/canoeing, hiking, and of course poking at technology stuff in my home lab including virtualization, containers, robots, ML, DL. I was a Boy Scout Assistant Scout Master for six years. That was a hoot.

At work, I am in pre-sales. Those are the folks that are supposed to know every random corner of IT enough to not look like a deer in the headlights when a customer says "Can you help me design and implement a transmogrifier?" I love the company I work for. The culture and people are
amazing. Really.

Mentorship is important to me and during any given week I am volunteering my time mentoring others.

Feel free to say hi and/or DM me about anything that I might be able to help with.

Dennis Faucher :donor: :mastodon:
@dennisfaucher@infosec.exchange

Yeah, don't choose the Windows 95 skin πŸ™‚πŸ™‚