CCyber Knight2d ago · 5 min readA 2.7-Rated Flaw Let Attackers Work Without Leaving a TraceThe logs said nothing had happened. Sometime in early 2026, according to CrowdStrike, an intruder was already inside some VMware environments in the United States legal sector, with administrator accenulltrace.hashnode.dev
KKazem Mortazavi2d ago · 2 min readWhen the Logs Lie: An ESXi Zero-Day With a CVSS of 2.7Most of us sort vulnerabilities by CVSS score: critical first, then high, and the lows only if time allows. CVE-2026-41709 in VMware ESXi shows where that habit breaks. It scores just 2.7, yet on Octosecurityland.hashnode.dev
EErik Rekola4d ago · 11 min readKeeping my lab and my client work apartThe security news of 17 to 24 October made me think hard about one question: how safely do I keep my own lab apart from client work? The lab is where I try things out and build my own tools and skillsturva.dev
OOnlive ServerOct 23 · 6 min readRunning Nested Virtualization Labs on Windows Hyper-V Server 2025: Setup and Performance AuditRunning multiple virtual machines usually requires substantial hardware resources. However, Windows Server 2025 supports nested virtualization through Hyper-V, allowing administrators to create virtuaonliveinfotech.hashnode.dev
DDorian ZhengOct 22 · 11 min readBuilding a VMM from scratch, #0.5: Booting Linux in 190 lines of CIn #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 1blog.boxlite.ai
OOnlive ServerOct 21 · 10 min readConfiguring VMware ESXi Enterprise Networking: vSwitches, VLAN Segmentation, and DMZ DemarcationSecuring enterprise workloads on VMware ESXi requires more than connecting virtual machines to a virtual switch. Administrators must define network boundaries, assign VLANs consistently, restrict commonliveinfotech.hashnode.dev
OOnlive ServerOct 20 · 7 min readHardware Virtualization Deep Dive: KVM vs Type-1 Hypervisor Overhead & CPU Pinning BenchmarksCPU 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 acconliveinfotech.hashnode.dev
AAdminPackStudioOct 19 · 45 min readHyper-V Live Migration Failed (Event 21502): A Read-First Switch, Processor, Version, and Kerberos TriageHelpdesk: "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 movadminpackstudio.hashnode.dev
KKazem MortazaviOct 18 · 2 min readSecuring VDI Without Slowing Users Down: Four Layers From Hypervisor to RecoveryAsk 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 slosecurityland.hashnode.dev
OOnlive ServerOct 17 · 9 min readBuilding a Zero-License Private Cloud: Step-by-Step Proxmox VE 8 High-Availability Cluster DeploymentBuilding a private cloud does not always require a proprietary hypervisor license. With Proxmox Virtual Environment (VE) 8, system administrators can combine virtualization, distributed storage, clustonliveinfotech.hashnode.dev