Port Mirroring, Cisco SPAN Basics
Port Mirroring, referred to by Cisco as SPAN (Switched Port Analyzer), is a networking technique used to send a duplicate […]
RHEL Support Lifecycle Planning
When deploying RHEL (Red Hat Enterprise Linux), it’s worthwhile to see where a specific version is within its lifecycle. Red
APC NMC/PDU Web UI Access Denied (Expired SSL)
Issue An expired SSL certificate on the APC Network Management Card (NMC) or Rack PDU causes HTTPS communication to break.
Linux Firewall Management using firewalld
Over the past few months, I feel like I’ve been on a tear with deploying Linux. Most of the deployments
Overview of Single sign-on with SAML
I’ve found myself in several discussions about Single Sign-On (SSO) over the last few months and figured this would be
IPv4 CIDR Reference Chart
In enterprise networking, cloud deployments, and system architecture, a CIDR chart is a fundamental cheat sheet. As the title suggests,
Why Azure Resource Naming Matters
There are a few lessons in life that are worth learning. One of them is establishing a robust naming convention
How to Migrate Windows DHCP Server to a new Server
They say all good things come to an end, and this is most certainly the case with Windows Server operating
What’s Ubuntu Pro? How to manage it
Ubuntu Pro is a comprehensive subscription service provided by Canonical that extends the security and compliance capabilities of Ubuntu LTS
Cisco Nexus Show Commands
A list of Cisco Nexus show commands that you can run to obtain information about Nexus switches. General System Information
Cisco Catalyst Show Commands
Not to much to say here other than this is a solid list of Cisco IOS/IOS-XE show commands that you
Grant Entra Service Principal SharePoint Access via Graph
This process can be used if you need to run an unattended script or application (for example, a PowerShell script