Let’s go through the steps and data flow when using `curl` to make an HTTPS request and check for an...
The communication between a laptop and a server within a network involves a number of layers and protocols. Here’s a...
Here’s a simplified breakdown of the data flow that occurs when a client computer in an Active Directory (AD) environment...
DNS name servers are usually split into two categories:...
DNS rewrite or DNS Doctoring has been around on the Cisco ASA’s for a while. Palo Alto firewalls received this...
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...
1. Local Cache Check: You attempt to access a website (say, `app.lb.cordero.me`) on your Windows AD-managed laptop. Your operating system...
Go to your command prompt and type in “wmic bios get serialnumber” C:\>wmic bios get serialnumber SerialNumber C5Q###...
First, let’s talk about the difference between a zone and a domain. There are several distinct zones in the DNS,...
In the context of DNS and websites, “cisco.com” and “www.cisco.com” are both domain names, but they have slightly different uses....