Kerry CorderoKISS IT Design Principle - Human Error Prevention
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Kerry Cordero
JoinedMay 2, 2023
Articles656
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.
Laptops & DesktopsServers

Powershell – Get AD Groups

Get-ADGroup -Filter * | Select-Object Name, GroupCategory, GroupScope | Format-Table -AutoSize...
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Routing & Switching

Python – Use RIPE to Research IP Subnet (BGP AS, Geolocation, Reverse DNS, CIDR Block, & Registration)

# Author: Kerry Cordero # Version: 1.0.0 # Description: This script will use RIPE to Research IP Subnet (BGP AS,...
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SecurityServers

Microsoft SQL Service Accounts

It is generally not a good practice to give service accounts DBO rights, unless absolutely necessary. Service accounts often interact...
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Data CenterRouting & SwitchingServers

Large Data Transfers (backups) – What to look for from a Network, Server, and Storage Perspective

What if you had to transfer a large amount of Data for backups?  Where do you put them?  How do...
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Data Center

Power Distribution Units (PDU) in the Data Center

PDU, or Power Distribution Unit, is a device used in data centers and other computing environments for distributing electrical power...
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Routing & SwitchingSecurityServers

HTTP vs HTTP2 vs HTTP3

HTTP 1.1: HTTP 1.1 was released in 1997 and is still widely used today. It improved on HTTP 1.0 by...
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Laptops & DesktopsServers

Ping Sweep on a Windows Device

Command Prompt: for /L %i in (1,1,254) do @ping -n 1 4.2.2.%i | find "Reply" Powershell: 1..254 | % {...
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SecurityServers

Microsoft SQL DBO

In SQL Server, DBO refers to the database owner schema. The dbo schema is the default schema for a newly...
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Routing & Switching

Data Transfer Time

To calculate how long it would take to transfer a certain amount of data over a given network connection, we...
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Laptops & DesktopsSecurityServers

Data Flow – HTTPS Traffic and Cipher Suites

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...
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  • Home
  • About
  • Disclaimer
  • Guides and Slides
    • AWS Well-Architected Framework
    • Facebook – Running BGP in the Data Center at Scale
    • Microsoft – Experiences with BGP in Large Scale Data Centers
    • Palo Alto PCNSE Study Guide
  • IP Calculator
  • Links
  • Contact

Categories

  • AI
  • Business Management
  • Cloud
  • Code
  • Data Center
  • Laptops & Desktops
  • Load Balancing
  • Routing & Switching
  • Security
  • Servers
  • Uncategorized
  • VOIP
  • Wireless

Tags

Active Directory (AD) AWS Azure Best Practices BGP Certificates Cisco Cisco ACI Cisco ASA Cisco ASR Cisco Catalyst Cisco CLI Cisco ISE Cisco Nexus Cisco Stack DDOS Design DNS EIGRP F5 HTTP(S) IP Addressing and Subnetting macOS Microsoft IIS Microsoft SQL Microsoft Windows OSPF Packet Capture Palo Alto Palo Alto CLI PDF Planning Ports PowerShell python QOS Splunk SSL Storage Structured Cabling TLS Troubleshooting Upgrade VMWare Zscaler
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