Kerry CorderoKISS IT Design Principle - Human Error Prevention
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Kerry Cordero
JoinedMay 2, 2023
Articles667
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.
Routing & Switching

Dual Redistribution between BGP and EIGRP TAGs Prevent Loop

ISSUE:...
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Routing & Switching

BGP Best Path Selection & Manipulation

In BGP (Border Gateway Protocol), you can manipulate traffic paths for outbound traffic (traffic leaving your AS) and inbound traffic...
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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 TACACS+ Configs for ACS (Nexus, ASR_IOS-XE, IOS, ASA, Wireless)

Below are some examples pulled from a working configuration. Enjoy!...
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Laptops & DesktopsRouting & Switching

Cisco Jumbo MTU Notes

In Cisco Nexus switches, you can configure Jumbo Frames on a per-interface basis. It is important to note that changing...
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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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  • 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 Okta OSPF Packet Capture Palo Alto Palo Alto CLI PDF Planning Ports PowerShell python QOS snmp Splunk SSL Structured Cabling TLS Troubleshooting Upgrade VMWare Zscaler
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Troubleshooting Palo Alto Microsoft Windows F5 Cisco
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