Upgrading ESXI from 6.5 to 6.7
Upgrade VMware ESXi from 6.5 to 6.7 step by step, including vCenter recovery after host loss, DVS reattachment, and storage initiator cleanup gotchas.
Posts
VMware SD-WAN from VeloCloud (SD- WAN Series: P3)
VMware SD-WAN from VeloCloud explained — VCE Edge, VCG Gateways, and VCO Orchestrator components, plus a hands-on lab walk-through of the platform.
SD-WAN Terminology (SD- WAN Series: P2)
SD-WAN terminology decoded — Orchestrator, Edge device, Hub-and-spoke vs Mesh topology, and Overlay vs Underlay networks across vendors.
SD-WAN Series - The Components (SD- WAN Series: P1)
SD-WAN explained from the ground up: data plane, control plane, management plane, and how vendors like Viptela, VeloCloud, and Meraki each implement it.
Zero Downtime Upgrades - An upgrade approach to avoid late nights
Zero-downtime upgrade approach for Cisco VOS apps (CUCM, Unity, UCCX) using refresh upgrade and switch-version to skip overnight maintenance windows.
Consuming the "Cloud" - How are you doing it?
How enterprises consume AWS and Azure as workloads shift off-premises, and how a network architect prepares for cloud conversations and design choices.
Cybersecurity - Want to be a Security Analyst? The List of things you need to understand
Core skills a Security Analyst Level 1 needs: TCP/IP, packet analysis, IDS/IPS, SIEM, malware basics, and the Cisco CCNA Cyber Ops domains to start.
Introduction to CyberSecEngineer Blog
Introduction to the CyberSecEngineer blog covering CCNA Cyber Ops study notes, security analyst career advice, and hands-on infosec learning resources.
The Job Description of a Security Analyst
What a Security Analyst actually does day to day: SOC monitoring, incident triage, log analysis, and the certifications and skills hiring managers expect.
Training on Cybersecurity and what is out there?
Curated list of free and paid cybersecurity training resources: NICCS, Cybrary, SANS, Cisco Networking Academy, and CCNA Cyber Ops prep paths for analysts.