PDU, or Power Distribution Unit, is a device used in data centers and other computing environments for distributing electrical power...
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...
In Cisco switches, VLAN 1 refers to the default VLAN that is created automatically when the switch is initialized or...
Postmark is an email delivery service that ensures emails are delivered quickly and reliably to their intended recipients. Postmark makes...
Here’s a simplified breakdown of the data flow that occurs when a client computer in an Active Directory (AD) environment...
1. Local Cache Check: You attempt to access a website (say, `app.lb.cordero.me`) on your Windows AD-managed laptop. Your operating system...
Finding the switch port that a laptop is connected to with just its DNS name requires a few more steps...
If you have access to the Cisco switch and know the IP address of the laptop, you can identify the...
The process to upgrade firewalls when Panorama is Internet-connected involves several steps: Review the PAN-OS 10.2 Release Notes: Understand...
Step-by-step process to upgrade an HA (High Availability) firewall pair to PAN-OS 10.2. Here’s the summarized procedure: Review the...