Kerry CorderoKISS IT Design Principle - Human Error Prevention
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Kerry Cordero
JoinedMay 2, 2023
Articles418
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.
Data Center

Power – 120v vs 240v – AC vs DC

The standard voltage for most equipment in U.S. data centers has traditionally been 120 Volts at 60 Hertz (alternating current)....
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Wireless

Design – Wireless

In this blog post, I’m going to go over some Wireless basics.   Most Secure Setting for SSID: The most...
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Laptops & DesktopsRouting & SwitchingServers

Data Flow – Laptop to Server Communication

The communication between a laptop and a server within a network involves a number of layers and protocols. Here’s a...
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Load Balancing

F5 Common Partition

F5 Networks is a company that provides solutions for application delivery networking (ADN). It provides hardware, software, and services that...
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Code

Python – Find if a DNS Record Exists both Internally and Externally

import dns.resolver from prettytable import PrettyTable from colorama import Fore, init # Initialize colorama init(autoreset=True) def check_dns_record(fqdn, server): resolver =...
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Data CenterLoad BalancingServers

Design – Redundancy

Here is an explanation of different redundancy levels: N+1 Redundancy In an N+1 redundancy setup, there is one extra (the...
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Load Balancing

F5 Virtual Server (VIP) with Multiple Ports

In the F5 BIG-IP system, a Virtual Server is defined by its destination (an IP address) and service (a port...
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CodeSecurityServers

API 101

What’s an API? API stands for Application Programming Interface. It’s a set of rules and protocols for building and interacting...
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Security

Palo Alto Templates

Templates in Palo Alto Panorama are essentially configuration containers for devices that are managed by Panorama. These templates allow for...
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Servers

Microsoft SQL AG Cluster Optimal Multi-Site Failover Settings for “RegisterAllProvidersIP”, “HostRecordTTL”, and “MultiSubnetFailover”

To achieve optimal performance in SQL Server AlwaysOn Availability Groups, especially for a rapid failover in a multi-subnet environment, it’s...
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Active Directory (AD) AWS Azure Best Practices BGP Certificates CISA Cisco Cisco ACI Cisco ASA Cisco ASR Cisco Catalyst Cisco CLI Cisco Nexus Cisco Stack Design DNS EIGRP F5 HTTP(S) IP Addressing and Subnetting IP Sla Kali macOS Microsoft IIS Microsoft SQL Microsoft Windows Netflow Okta OSPF Packet Capture Palo Alto Palo Alto CLI PDF Planning Ports PowerShell python QOS Splunk SSL Structured Cabling TLS Troubleshooting VMWare
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Categories

  • 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 CISA Cisco Cisco ACI Cisco ASA Cisco ASR Cisco Catalyst Cisco CLI Cisco Nexus Cisco Stack Design DNS EIGRP F5 HTTP(S) IP Addressing and Subnetting IP Sla Kali macOS Microsoft IIS Microsoft SQL Microsoft Windows Netflow Okta OSPF Packet Capture Palo Alto Palo Alto CLI PDF Planning Ports PowerShell python QOS Splunk SSL Structured Cabling TLS Troubleshooting VMWare
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Troubleshooting Palo Alto Microsoft Windows F5 Cisco ASA
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