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.
Security

Python – Scan FQDNS, Get the Expiration, and Display Results

# Author: Kerry Cordero # Version: 1.0.0 # Description: This script will scan a text document "dr-dns.txt", get the SSL...
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CloudData CenterLaptops & DesktopsLoad BalancingRouting & SwitchingSecurityServersWireless

Certificates Self Signed vs 3rd Party

Here’s an explanation of the importance of self-signed certificates and third-party certificates in the context of certificate chains: Self-Signed Certificates:...
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Security

Cross-Sector Cybersecurity Performance Goals Checklist

“The CPGs are a prioritized subset of IT and operational technology (OT) cybersecurity practices that critical infrastructure owners and operators...
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Servers

Microsoft SQL Availability Groups

WHAT IS IT Microsoft SQL Server AlwaysOn Availability Groups (AG) is a high-availability and disaster-recovery feature that provides an enterprise-level...
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Data CenterRouting & Switching

Cisco SSO vs NSF Operations

Stateful Switchover (SSO) Operation SSO makes one of the supervisor engines active while the other is on standby. SSO then...
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Code

Python – Scan FQDNs and Tell you the Location of the Resolved IPs

Site A: 10.10.10. Site B: 20.20.20. You want to change 10.10.10. and 20.20.20. to the subnets you use. # Author:...
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CloudData CenterRouting & Switching

DNS Internal vs External

DNS (Domain Name System) is a distributed hierarchical system that translates human-readable domain names into IP addresses. It enables users...
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Load Balancing

BIG-IP DNS (formerly GTM) Load Balancing Methods

    Static load balancing methods This table describes the static load balancing methods available in BIG-IP DNS. Name Description...
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Data CenterRouting & Switching

Underlay vs Overlay Networks

In IT networking, overlay networks and underlay networks refer to different layers or perspectives of network architecture. Here’s an explanation...
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Wireless

Cisco Wireless Local vs FlexConnect

In Cisco wireless networks, “FlexConnect” and “Local Mode” are two different deployment options for Cisco Lightweight Access Points (LAPs) that...
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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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