Here’s a step-by-step breakdown of the data flow: DNS Resolution: The user enters “https://cordero.me” into their browser’s address bar. The...
JoinedMay 2, 2023
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20+ years of experience and proven performance in large scale enterprise network infrastructure architecture, design, implementation, migration, security, operation, troubleshooting, leading/managing teams, and budgets. I have a BS in Cybersecurity and a Master's from the University of Florida.
Postmark is an email delivery service that ensures emails are delivered quickly and reliably to their intended recipients. Postmark makes...
1. Local Cache Check: You attempt to access a website (say, `app.lb.cordero.me`) on your Windows AD-managed laptop. Your operating system...
If you have access to the Cisco switch and know the IP address of the laptop, you can identify the...
Step-by-step process to upgrade an HA (High Availability) firewall pair to PAN-OS 10.2. Here’s the summarized procedure: Review the...
In Cisco switches, VLAN 1 refers to the default VLAN that is created automatically when the switch is initialized or...
Here’s a simplified breakdown of the data flow that occurs when a client computer in an Active Directory (AD) environment...
Finding the switch port that a laptop is connected to with just its DNS name requires a few more steps...
The process to upgrade firewalls when Panorama is Internet-connected involves several steps: Review the PAN-OS 10.2 Release Notes: Understand...
Upgrading Nexus 9000 NX-OS Operating System with Minimal Downtime Policy Statement This policy establishes the procedure for upgrading the Nexus...