Kerry CorderoThe KISS Principle in IT: Designing to Prevent Human Error
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Kerry Cordero
JoinedMay 2, 2023
Articles701
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 – Load Balancing

When designing an F5 Load Balancing solution, there are several options to consider. Here are the primary ones: Load Balancing...
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Servers

Windows Server to Server Communication Troubleshooting

When trying to see what devices a Windows Server is communicating with on the network, there are several approaches you...
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SecurityServers

Powershell – Get List of Users that Belong to a Specific Group

Group = Web Admins Get-ADGroupMember -Identity "Web Admins" | Where-Object {$_.objectClass -eq "user"} | Select-Object Name, SamAccountName...
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Routing & SwitchingSecurityServers

HTTP vs HTTP2 vs HTTP3

HTTP 1.1: HTTP 1.1 was released in 1997 and is still widely used today. It improved on HTTP 1.0 by...
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Laptops & DesktopsServers

Ping Sweep on a Windows Device

Command Prompt: for /L %i in (1,1,254) do @ping -n 1 4.2.2.%i | find "Reply" Powershell: 1..254 | % {...
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Security

Palo Alto AD Server Synch Troubleshooting

To verify the connectivity and synchronization status of your Active Directory (AD) servers on a Palo Alto Networks firewall, you...
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Security

Palo Alto Get AD Groups with Match

Get all AD Groups: show user group list Get all AD Groups with “admin” in the name: show user group...
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Laptops & DesktopsServers

Powershell – Get AD Groups

Get-ADGroup -Filter * | Select-Object Name, GroupCategory, GroupScope | Format-Table -AutoSize...
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Routing & Switching

Python – Use RIPE to Research IP Subnet (BGP AS, Geolocation, Reverse DNS, CIDR Block, & Registration)

# Author: Kerry Cordero # Version: 1.0.0 # Description: This script will use RIPE to Research IP Subnet (BGP AS,...
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SecurityServers

Microsoft SQL Service Accounts

It is generally not a good practice to give service accounts DBO rights, unless absolutely necessary. Service accounts often interact...
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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
  • Tools
    • Car Calculator
    • RouteAgg
    • IP Calculator
    • VSLM
  • 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 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 Netflow OSPF Packet Capture Palo Alto Palo Alto CLI PDF Planning Ports PowerShell python QOS snmp Spanning-Tree Splunk SSL Structured Cabling TLS Troubleshooting Upgrade VMWare Zscaler
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Troubleshooting Palo Alto Microsoft Windows F5 Cisco
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