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#virtualization

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Onlive Server2d ago · 6 min read

Running Nested Virtualization Labs on Windows Hyper-V Server 2025: Setup and Performance Audit

Running multiple virtual machines usually requires substantial hardware resources. However, Windows Server 2025 supports nested virtualization through Hyper-V, allowing administrators to create virtua

onliveinfotech.hashnode.dev

Dorian Zheng2d ago · 11 min read

Building a VMM from scratch, #0.5: Booting Linux in 190 lines of C

In #0 we set out to replace libkrun with a VMM of our own. Its boot path is landing one PR at a time, and its tests already boot a real Linux kernel to an init on four vCPUs (#2052). Before the parts

blog.boxlite.ai

Onlive Server4d ago · 10 min read

Configuring VMware ESXi Enterprise Networking: vSwitches, VLAN Segmentation, and DMZ Demarcation

Securing enterprise workloads on VMware ESXi requires more than connecting virtual machines to a virtual switch. Administrators must define network boundaries, assign VLANs consistently, restrict comm

onliveinfotech.hashnode.dev

Onlive Server5d ago · 7 min read

Hardware Virtualization Deep Dive: KVM vs Type-1 Hypervisor Overhead & CPU Pinning Benchmarks

CPU pinning can improve KVM workload consistency when it reduces scheduling contention or keeps execution close to memory. It can also hurt performance when busy vCPUs share physical cores or lose acc

onliveinfotech.hashnode.dev

AdminPackStudio6d ago · 45 min read

Hyper-V Live Migration Failed (Event 21502): A Read-First Switch, Processor, Version, and Kerberos Triage

Helpdesk: "Since we added the two new hosts last week, moving VMs to them fails. Hyper-V Manager says the migration operation failed at migration source, and the cluster logged Event 21502. One VM mov

adminpackstudio.hashnode.dev

Kazem Mortazavi6d ago · 2 min read

Securing VDI Without Slowing Users Down: Four Layers From Hypervisor to Recovery

Ask anyone who runs a large VDI deployment about endpoint security and you will often hear the same story: the agent built for physical PCs runs on hundreds of virtual desktops at once, everything slo

securityland.hashnode.dev

Onlive ServerOct 17 · 9 min read

Building a Zero-License Private Cloud: Step-by-Step Proxmox VE 8 High-Availability Cluster Deployment

Building a private cloud does not always require a proprietary hypervisor license. With Proxmox Virtual Environment (VE) 8, system administrators can combine virtualization, distributed storage, clust

onliveinfotech.hashnode.dev

AdminPackStudioOct 17 · 34 min read

Hyper-V Checkpoint Operation Failed: A Read-First VSS, Storage, Permissions, and Orphaned AVHDX Triage

Helpdesk: "The nightly backup for APP02 failed again: 'Failed to create VM recovery checkpoint ... error code: 32768'. I tried a manual checkpoint in Hyper-V Manager and got 'Checkpoint operation fail

adminpackstudio.hashnode.dev

Chronic EngineeringOct 16 · 2 min read

AQEMU - a point-and-click QEMU front-end for Windows and Linux

QEMU can emulate almost anything, but getting a guest running usually means a wall of command-line flags. AQEMU is my attempt to fix that: an open-source (GPL-2.0) Qt GUI that wraps QEMU and gives you

chronicengineering.hashnode.dev

Sancharini PandaOct 16 · 17 min read

What is API Simulation? Tools, Types & Use Cases

API simulation is how development teams keep moving when a dependency isn't available, stable, or cheap to call repeatedly. Instead of hitting the real API, you route requests to a local api simulator

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Trending tags this week

Running Nested Virtualization Labs on Windows Hyper-V Server 2025: Setup and Performance Audit

Building a VMM from scratch, #0.5: Booting Linux in 190 lines of C

Configuring VMware ESXi Enterprise Networking: vSwitches, VLAN Segmentation, and DMZ Demarcation

Hardware Virtualization Deep Dive: KVM vs Type-1 Hypervisor Overhead & CPU Pinning Benchmarks

Hyper-V Live Migration Failed (Event 21502): A Read-First Switch, Processor, Version, and Kerberos Triage

Securing VDI Without Slowing Users Down: Four Layers From Hypervisor to Recovery

Building a Zero-License Private Cloud: Step-by-Step Proxmox VE 8 High-Availability Cluster Deployment

Hyper-V Checkpoint Operation Failed: A Read-First VSS, Storage, Permissions, and Orphaned AVHDX Triage

AQEMU - a point-and-click QEMU front-end for Windows and Linux

What is API Simulation? Tools, Types & Use Cases