Kerry CorderoKISS IT Design Principle - Human Error Prevention
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Kerry Cordero
JoinedMay 2, 2023
Articles673
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 & Desktops

Cisco AnyConnect VPN Error: “Failed to initialize connection subsystem.”

If you are running Windows 7/8/10 and you are using Cisco AnyConnect to VPN into a network, you may get...
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Routing & Switching

Cisco Fiber Troubleshooting with DOM

Cisco supports DOM (Digital Optical Monitoring) which is an industry standard to capture real time operating stastics such as:...
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Laptops & Desktops

How to see if you have local admin rights (Windows 7)

One of the quickest and easiest ways to tell if you have local admin rights to a Windows 7 PC/Laptop...
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Routing & Switching

Cisco VIRL VM Image Upgrades Fail

When I tried to update the Images in Cisco’s VIRL User Workspace Management, all the images would fail. I would...
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Security

Palo Alto App IDs that Require Decryption

Routing & Switching

Cisco Digital Optical Monitoring Compatibility Matrix

Data CenterServers

Cisco UCS Best Practices

Chassis/FEX Discovery Policy:...
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Laptops & DesktopsServers

Port Numbers

Port numbers are assigned in various ways, based on three ranges: SystemPorts (0-1023), User Ports (1024-49151) Dynamic and/or Private Ports...
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Data CenterRouting & Switching

VMWare vSphere 6.0 Networking Best Practices

Consider these best practices when you configure your network....
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Laptops & DesktopsRouting & Switching

Cisco Switch Macros (2960S/X 3750,etc…)

Cisco has built in port macros where it will automatically assign specific commands to a port based on the macro...
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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 Microsoft IIS Microsoft SQL Microsoft Windows OSPF Packet Capture Palo Alto Palo Alto CLI PDF Planning Ports PowerShell python QOS snmp Splunk SSL Storage Structured Cabling TLS Troubleshooting Upgrade VMWare Zscaler
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Troubleshooting Palo Alto Microsoft Windows F5 Cisco
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