Latest Posts Calendar

Last 100 Posts

• Broken Data Domain Web UIAugust 6, 2026
  I recently resurrected an EMC Data Domain as I have a new, potential use for… Read more: Broken Data Domain Web UI
• Docker Image MaintenanceJuly 26, 2026
  The other day, I was alerted to a storage space alarm on a Linux system… Read more: Docker Image Maintenance
• OpenSSL, Generate Private Keys and CSRsJuly 3, 2026
  I’ve run into a handful of occasions where I’ve had to defer to OpenSSL to… Read more: OpenSSL, Generate Private Keys and CSRs
• Decommissioning a Domain ControllerJuly 1, 2026
  Before getting into it, I want to raise some caution. Every environment is different and… Read more: Decommissioning a Domain Controller
• vSphere Cross-vCenter MigrationJune 28, 2026
  A vSphere cross-vCenter migration allows you to move virtual machines (VMs) between two different vCenter… Read more: vSphere Cross-vCenter Migration
• Rotating MS Exchange Server Auth CertJune 27, 2026
  This is a quick how-to for rotating a Server Auth Certificate that’s about to expire… Read more: Rotating MS Exchange Server Auth Cert
• Monitoring your UPS and PDU GearJune 19, 2026
  I wanted to post on this topic because the underlying UPS and PDU equipment that… Read more: Monitoring your UPS and PDU Gear
• All about Ethernet CablingJune 14, 2026
  Ethernet cabling refers to the physical wires used to connect computers, routers, and switches within… Read more: All about Ethernet Cabling
• Get down with wingetJune 13, 2026
  winget (the Windows Package Manager) is Microsoft’s answer to the classic Linux experience of apt… Read more: Get down with winget
• VMware PowerCLI BasicsJune 11, 2026
  If you are managing a VMware environment, doing everything through the vSphere client GUI can… Read more: VMware PowerCLI Basics
• Migrate to ADBA and Stop fighting with KMSJune 6, 2026
  Introduced in Windows 8 and Server 2012, Active Directory-Based Activation (ADBA) modernizes enterprise license management.… Read more: Migrate to ADBA and Stop fighting with KMS
• Managing Cisco Port SecurityJune 6, 2026
  I want to preface this by stating that although Port Security may still have a… Read more: Managing Cisco Port Security
• Port Mirroring, Cisco SPAN BasicsJune 1, 2026
  Port Mirroring, referred to by Cisco as SPAN (Switched Port Analyzer), is a networking technique… Read more: Port Mirroring, Cisco SPAN Basics
• RHEL Support Lifecycle PlanningMay 30, 2026
  When deploying RHEL (Red Hat Enterprise Linux), it’s worthwhile to see where a specific version… Read more: RHEL Support Lifecycle Planning
• APC NMC/PDU Web UI Access Denied (Expired SSL)May 24, 2026
  Issue An expired SSL certificate on the APC Network Management Card (NMC) or Rack PDU… Read more: APC NMC/PDU Web UI Access Denied (Expired SSL)
• Linux Firewall Management using firewalldMay 3, 2026
  Over the past few months, I feel like I’ve been on a tear with deploying… Read more: Linux Firewall Management using firewalld
• Overview of Single sign-on with SAMLMay 2, 2026
  I’ve found myself in several discussions about Single Sign-On (SSO) over the last few months… Read more: Overview of Single sign-on with SAML
• IPv4 CIDR Reference ChartMay 2, 2026
  In enterprise networking, cloud deployments, and system architecture, a CIDR chart is a fundamental cheat… Read more: IPv4 CIDR Reference Chart
• Why Azure Resource Naming MattersApril 12, 2026
  There are a few lessons in life that are worth learning. One of them is… Read more: Why Azure Resource Naming Matters
• How to Migrate Windows DHCP Server to a new ServerApril 12, 2026
  They say all good things come to an end, and this is most certainly the… Read more: How to Migrate Windows DHCP Server to a new Server
• What’s Ubuntu Pro? How to manage itApril 12, 2026
  Ubuntu Pro is a comprehensive subscription service provided by Canonical that extends the security and… Read more: What’s Ubuntu Pro? How to manage it
• Cisco Nexus Show CommandsApril 12, 2026
  A list of Cisco Nexus show commands that you can run to obtain information about… Read more: Cisco Nexus Show Commands
• Cisco Catalyst Show CommandsApril 11, 2026
  Not to much to say here other than this is a solid list of Cisco… Read more: Cisco Catalyst Show Commands
• Grant Entra Service Principal SharePoint Access via GraphMarch 31, 2026
  This process can be used if you need to run an unattended script or application… Read more: Grant Entra Service Principal SharePoint Access via Graph
• Windows 11 on Unsupported HardwareMarch 13, 2026
  Have you ever tried to install Windows 11 and bumped up against the “Your PC… Read more: Windows 11 on Unsupported Hardware
• Common TCP, UDP Ports, and Tightening up FirewallsFebruary 21, 2026
  Below is a list of common ports and protocols for use on your Windows and… Read more: Common TCP, UDP Ports, and Tightening up Firewalls
• A Guide to Debloating Windows 11 Like a ProFebruary 19, 2026
  I’ll probably warn you a few times here as there’s a significant chance that something… Read more: A Guide to Debloating Windows 11 Like a Pro
• VMware Tools: Can’t Upgrade, Repair, or ReinstallFebruary 14, 2026
  This here is a story about a well executed HCI cluster upgrade that went slightly… Read more: VMware Tools: Can’t Upgrade, Repair, or Reinstall
• Secure Remote Access using Tailscale Subnet RouterFebruary 14, 2026
  If you’ve ever wanted to get secure remote access to something on the inside of… Read more: Secure Remote Access using Tailscale Subnet Router
• Upgrading Ubuntu LTS to the Next ReleaseFebruary 14, 2026
  Often times, the need arises to deploy software as part of a solution. In instances… Read more: Upgrading Ubuntu LTS to the Next Release
• Rescuing My Notes from the Digital AbyssFebruary 13, 2026
  Over the course of my career and while exploring my personal interests and hobbies, I’ve… Read more: Rescuing My Notes from the Digital Abyss
• Joining a RHEL VM to an Active Directory DomainFebruary 12, 2026
  Let’s face it folks, Linux rules the datacenter, but Microsoft Windows has a place and… Read more: Joining a RHEL VM to an Active Directory Domain
• Connecting to Microsoft 365 Services with PowershellFebruary 9, 2026
  1. Microsoft Entra ID (Formerly Azure AD/MSOL) This is the direct replacement for the MSOL… Read more: Connecting to Microsoft 365 Services with Powershell
• Duo Authentication Proxy: Install, Upgrade, ManagementFebruary 9, 2026
  Duo Authentication Proxy is an on-premises software service that acts as a RADIUS or LDAP… Read more: Duo Authentication Proxy: Install, Upgrade, Management
• Basic Linux Shell CommandsFebruary 9, 2026
  Mastering Linux Shell Commands: A Beginner’s Guide Linux shell commands are powerful tools that allow… Read more: Basic Linux Shell Commands