Docker
How to Run Windows on Docker with Docker Compose
On occasion, you will need a Windows machine, and frankly, you can always have it as a VM…
Category
Virtualization
DevOps
Install Vagrant on Ubuntu 26.04 LTS
Vagrant creates identical development environments from a single file. Whether you’re onboarding a new developer or spinning up…
How To
Build a Penetration Testing Lab with Proxmox and Kali
Every penetration tester needs a safe environment to sharpen skills without risking legal trouble or breaking production systems.…
Linux Tutorials
Convert VirtualBox VDI to qcow2 with qemu-img
Moving a VM between hypervisors is usually a matter of converting the disk image format. VirtualBox writes to…
Ansible
Ansible + Proxmox: Automated VM Management
Managing a handful of Proxmox VMs through the web UI is fine. Managing dozens across a cluster, spinning…
Openstack
Add SSH Key Pairs to OpenStack Using CLI
OpenStack instances need SSH key pairs for secure access. You upload your public key to OpenStack, then select…
Openstack
Create OpenStack Networks and Subnets Using CLI
Before launching instances on OpenStack, you need networks for them to connect to. OpenStack Neutron handles all networking:…
Fedora
Install VirtualBox 7.2 on Fedora 42 / 41
VirtualBox 7.2 brought a redesigned toolbar, NVMe in the open-source base package, and extended Linux kernel support up…
How To
Install VirtIO Drivers on Windows Server 2025 / Windows 11
VirtIO drivers give Windows VMs running on KVM/QEMU direct (paravirtualized) access to disk, network, and memory devices on…
How To
Configure Guestfish to Modify VM Disk Images on Linux
Guestfish lets you open, inspect, and modify virtual machine disk images without booting the VM. Need to inject…
How To
Resize KVM Guest Disk Images with virt-resize and qemu-img
Running out of disk space on a KVM guest is inevitable. The question is whether you can expand…
How To
Create Proxmox VM Templates from Cloud Images
Cloning a VM from a template takes under a minute. Installing from an ISO takes 20 minutes of…