Kerry CorderoKISS IT Design Principle - Human Error Prevention
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Kerry Cordero
JoinedMay 2, 2023
Articles649
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.
Code

Python – IP Location and Subnet Scanner

This script was developed to address a specific scenario where vendors provide a range of IP subnets to be whitelisted....
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SecurityServers

F5 – Leveraging the X-Forwarded-For HTTP Header to Preserve Original Client IP Address in SNAT Traffic

When managing web servers, especially in situations where monitoring or logging is vital, accurately recording the original client IP address...
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SecurityServers

RFC 6761 – Special-Use Domain Names

The acronym “RFC” stands for Request for Comments. These documents are part of a series that describes how the Internet...
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Data Center

Cisco ACI – Object Naming and Numbering Best Practices

Cisco Application Centric Infrastructure (ACI) relies on a well-defined naming convention for its managed objects (MOs) to ensure efficient manageability...
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Routing & Switching

Python – IP Subnetting

# Author: Kerry Cordero # Version: 1.0.0 # Description: This script prompt for the IP Address and then the SubnetMask/CIDR....
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Security

Palo Alto – Countries and Country Codes

COUNTRY NAME COUNTRY CODE Afghanistan AF Albania AL Algeria DZ American Samoa AS Andorra AD Angola AO Anguilla AI Antarctica...
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CloudCodeData CenterLaptops & DesktopsLoad BalancingRouting & SwitchingSecurityServersVOIPWireless

RFC 5735 – Special Use IPv4 Addresses

Before we dive into the specifics, let’s take a moment to revisit what RFCs are. Standing for “Request for Comments,”...
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Servers

DNS – Domain Ownership in Microsoft Active Directory (Don’t use .local or UnOwned Domains)

Using a domain name within Microsoft Active Directory (AD) is pivotal, not just for routing and architectural considerations. Still, it...
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Data Center

Cisco ACI – Best Practices

 This post provides a list of configuration options in Cisco ACI (Application Centric Infrastructure) that are recommended for most users....
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CloudCodeData CenterLaptops & DesktopsLoad BalancingRouting & SwitchingSecurityServersVOIPWireless

Organizational Structures for IT – Network Leads & Network Architects

I’ve carried the Architect title over the years of being in IT. Below is my opinion on the difference between...
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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

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

Tags

Active Directory (AD) API 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 Logging macOS Microsoft IIS Microsoft SQL Microsoft Windows OSPF Packet Capture Palo Alto Palo Alto CLI PDF Planning Ports PowerShell python QOS Splunk SSL Structured Cabling TLS Troubleshooting Upgrade VMWare
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