Kerry CorderoKISS IT Design Principle - Human Error Prevention
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Certificate Chains

HOW CERTIFICATE CHAINS WORK Certificate chains, also known as a chain of trust, work on the concept of Public Key...
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Powershell – Find AD Active Users Password Expirations

Find Active Users with PW Expires Date/Time: Import-Module ActiveDirectory Get-ADUser -SearchBase "DC=cordero,DC=me" -filter {Enabled -eq $True -and PasswordNeverExpires -eq $False}...
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Common Ports

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Common HTTP Response Codes

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

# Author: Kerry Cordero # Version: 1.0.0 # Description: This script will scan both Internal and External DNS import dns.resolver...
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SDLC – Understanding the Git Flow: A Software Development Workflow

Creating a development workflow with PROD (Production) and DEV (Development) environments using branches in a version control system like Git...
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Organizational Structures for IT – Network Leads & Network Architects

I’ve carried the Architect title over the years of being in IT. Below is my opinion on the difference between...
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Python – MX Scanner

# Author: Kerry Cordero # Version: 1.0.0 # Description: This script will look at a file called "mx-records.txt" and run...
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Useful Powershell Commands

I’ll try to keep adding to this list....
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Python – Get TLS Versions with Cipher Suites

# Author: Kerry Cordero # Version: 1.0.0 # Description: This script prompts for domain and gets the TLS version for...
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  • Home
  • About
  • Disclaimer
  • Guides and Slides
    • Facebook – Running BGP in the Data Center at Scale
    • Microsoft – Experiences with BGP in Large Scale Data Centers
  • IP Calculator
  • Links
  • Contact

Categories

  • 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 Nexus Cisco Stack DDOS Design DNS EIGRP F5 F5-LTM HTTP(S) IP Addressing and Subnetting LAG Logging macOS Microsoft IIS Microsoft SQL Microsoft Windows OSPF Packet Capture Palo Alto Palo Alto CLI PDF Planning Ports PowerShell python Spanning-Tree Splunk SSL Structured Cabling TLS Troubleshooting Upgrade VMWare
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Troubleshooting Palo Alto Microsoft Windows F5 DNS
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