Kerry CorderoKISS IT Design Principle - Human Error Prevention
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Using netstat to show specific port

netstat -na | find “51000” or netstat -np [protocol] | find “port #” netstat -np tcp | find “51000” or...
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Laptops & DesktopsRouting & SwitchingServers

Test Jumbo Frames and MTUs with Ping

Jumbo Frames refer to Ethernet frames that carry a payload of up to 9000 bytes, instead of the standard 1500...
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Laptops & DesktopsSecurityServers

Finding Public IP Ranges using DIG

This is one way to find public IP Ranges for email using DIG. This is used if you want to...
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CloudCodeData CenterLaptops & DesktopsLoad BalancingRouting & SwitchingSecurityServersVOIPWireless

RFC 5735 – Special Use IPv4 Addresses

Before we dive into the specifics, let’s take a moment to revisit what RFCs are. Standing for “Request for Comments,”...
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Laptops & DesktopsServers

Configure and manage Microsoft Defender Antivirus using the MpCmdRun.exe command-line tool

The command below is a straightforward way to run a custom scan using Windows Defender (Microsoft Defender Antivirus) from the...
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Laptops & DesktopsServers

Powershell – Export all Windows AD GPO’s

This will dump all GPO’s into HTML files. Get-GPO -all | % { Get-GPOReport -GUID $_.id -ReportType HTML -Path "C:\MyExports\$($_.displayName).html"...
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Laptops & Desktops

Dell – Get Your System Service Tag Using Command Prompt

Go to your command prompt and type in “wmic bios get serialnumber” C:\>wmic bios get serialnumber SerialNumber C5Q###...
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Laptops & DesktopsServers

Data Flow – Windows AD DNS with Conditional Forwarders

Here’s a simplified breakdown of the data flow that occurs when a client computer in an Active Directory (AD) environment...
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CodeLaptops & DesktopsServers

Powershell – Explicitly Check the Enabled SSL-TLS Protocols WinHTTP

# Author: Kerry Cordero # Version: 1.0.0 # Description: This script will check the Enabled SSL-TLS Protocols WinHTTP $Protocols =...
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Laptops & DesktopsSecurity

A list of SMTP and IMAP eMail Settings

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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 macOS Microsoft IIS Microsoft SQL Microsoft Windows OSPF Packet Capture Palo Alto Palo Alto CLI PDF Planning Ports PowerShell python QOS Splunk SSL Storage Structured Cabling TLS Troubleshooting Upgrade VMWare Zscaler
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