10 Tips to Harden SSH Access on Production Ubuntu Servers
Any Ubuntu server with port 22 open can start receiving SSH password guesses within minutes of…
VMware vSphere Foundation 9.1 vs. VMware Cloud Foundation 9.1: Which Operating Model Fits?
TL;DR Can the current operating model provision network and security policy at the same speed as…
VCF Workload Domains: Choosing Lifecycle and Isolation Boundaries
Flat connectivity, shared administrative credentials, undocumented dependencies, and unrestricted service access erase the benefit of domain…
From VVF to VCF: A Phased Rollout for One Private Cloud Service
TL;DR A VVF-to-VCF program should earn expansion through one complete service. Establish the current estate, define…
12 Docker Tips to Save Disk Space, Limit Resources, and Secure Containers on Linux
A Docker host can run reliably for months and still fill its disk overnight or expose…
VCF on Dell PowerFlex: Storage, Platform, and Lifecycle Boundaries
Adding storage or compute capacity can expand the platform, but applications may still require rebalancing, licensing…
Moving from VVF to VCF: Is Your Operating Model Ready?
TL;DR The contract should identify a service owner accountable for the complete result. Component specialists retain…
VCF Fleet Operations: Shared Services and Local Control
The aircraft in the image are similar, connected, and moving toward a common objective. They are…
VCF Multicloud Operations: Workload Contracts and Lifecycle Decisions
Decide which health, capacity, security, and performance signals trigger action. Instrument the platform before promising self-service…
How to Fix apt and dnf Lock Errors After a Crashed Upgrade
When a package upgrade stops halfway through, your package manager can stay locked and leave many…
VCF on Dell: Platform Layers and Operational Boundaries
The aircraft mental model is strongest when it exposes integration. It becomes misleading when it hides…
VCF Edge Fleet Operations: Local Control and Resilient Recovery
The rally-raid metaphor makes the division of responsibility visible. The rider cannot tow the entire support…
VCF Day-2 Operations: Standardized Changes and Service Validation
Amber-lane actions are repeatable but need human approval because they affect availability, capacity, identity, security, or…
VCF on Dell Infrastructure: Platform Roles and Change Readiness
A platform team should not select it merely because the environment includes AI. The decision should…
VCF 9.1 Operations: Ownership, Observability, and Lifecycle Control
Better approach: Use higher-frequency collection for defined failure modes and critical services where the additional evidence…