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.
Load Balancing

F5 – SSL Options (SSL Offloading vs SSL Bridging vs SSL Passthrough)

SSL Offloading (or SSL Termination) In this method, SSL traffic is terminated at the F5 BIG-IP system, decrypted and inspected,...
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Load Balancing

F5 – Automap vs SNAT Pool vs SNAT w Translation Address

  None: The “None” option means that no SNAT is applied. This means that the real client IP is sent...
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Routing & SwitchingServers

MTU 1500: Fragmentation after 1472 bytes “Packet needs to be fragmented but DF set”

Are you getting an error message that says, “Packet needs to be fragmented but DF set” or “Frag needed and...
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Routing & Switching

Why some switches show an MTU of 1522 and some like Cisco show 1500

There’s no issue here. Cisco is just showing Ethernet MTU, which is 1500. There are 18 header bytes and 4...
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Routing & Switching

Cisco RMA Options

Data CenterRouting & Switching

Cisco Nexus Port-Side Exhaust vs Port-Side Intake

Port-side intake and port-side exhaust are terms used by Cisco, especially in their Nexus series of switches, to refer to...
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Routing & Switching

Cisco SmartNet 101

SNT SMARTnet Support 8x5xNBD SNTE SMARTnet Support 8x5x4 SNTP SMARTnet Support 24x7x4 S2P SMARTnet Support 24x7x2 CS Onsite SMARTnet Support...
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Cloud

AWS, Azure, and Google Cloud Terminology Comparison

API endpoints  Single entryway that allows multiple APIs or microservices to act cohesively AWS: API Gateway Azure: API Management GCP: Cloud Endpoints Autoscaling...
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Routing & Switching

Understanding Network Infrastructure: MDFs, IDFs, and On-Site Data Centers Explained

Understanding the components of your building’s network infrastructure is crucial for effective network management. The critical elements of this infrastructure...
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Laptops & DesktopsServers

Using CURL to get HTTP/S Status Codes

curl -Is https://{SITE}.com | head -1 HTTP/2 200 curl -Is https://{SITE}.com/login.asp | head -1 HTTP/2 404 curl -Is http://{SITE}.com |...
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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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