Tech-Gen

  Securing vCenter and ESXi Hosts: A VMware Architect’s Guide In the evolving threat landscape, vCenter Server and ESXi hosts remain high-value targets in the data center. As the foundational control and compute planes of your virtual infrastructure, securing them is essential. Whether you’re operating in a regulated environment or simply looking to adopt best practices, this guide provides a comprehensive security baseline for hardened, resilient, and compliant vSphere deployments. 🔐 Securing vCenter Server (VCSA) Use a Dedicated Management Network Segment vCenter on a management VLAN. Apply firewall rules to restrict access to trusted IPs or jump boxes. Use NSX micro-segmentation for east-west traffic control (if you have this available). Identity Federation and MFA Integrate with an identity provider (Okta, ADFS, Azure AD). Enforce MFA for vSphere Client access. Avoid using Administrator@vsphere.local for daily use—use named accounts. Enable and Forward Logs Use remote syslo...

  Understanding vSAN Storage Policies, Their Strengths, and Their Trade‑offs Storage Policy–Based Management (SPBM) is the backbone of how VMware vSAN delivers predictable, workload‑aligned outcomes. Instead of carving LUNs or managing fixed RAID groups the old-fashioned way, policies define the storage behavior of each VM and each VMDK —granular, dynamic, and automated. This approach simplifies operations, enables workload‑specific tuning, and eliminates the rigidity of traditional storage constructs. Below, we’ll explore the key vSAN storage policy components , along with their advantages and disadvantages , from an architectural design perspective. Primary Level of Failures to Tolerate (PFTT) The Primary Level of Failures to Tolerate (FTT) dictates how many concurrent host, disk, or fault domain failures a VM object can survive. Values range from 0 to 3 depending on cluster size and hardware availability. How it works FTT=0 : No redundancy; best for non‑critical or ephemeral...