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DNS Root (Apex) ANAME Records NOT CNAME Records

ANAME (Alias Name) records are a type of DNS record that allows you to alias one hostname to another, similar...

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Microsoft IIS – HTTP status codes

HTTP status codes This section describes some of the common HTTP status codes. Note This article doesn’t list every...

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Python – ARIN Whois

# Author: Kerry Cordero # Version: 1.0.0 # Description: This script prompt for the ASN and output the IP Subnet...

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Python – Simple DNS Lookup Tool

# Author: Kerry Cordero # Version: 1.0.0 # Description: This script prompts for the IP/FQDN, Record Type, DNS Server to...

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Windows Powershell giving “is not digitally signed” error

I was getting this error: File C:\Scripts\XXXXXX.ps1 cannot be loaded. The file C:\Scripts\XXXXXX.ps1 is not digitally signed. You cannot run...

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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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Useful Powershell Commands

I’ll try to keep adding to this list....

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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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Powershell – Find All AD Integrated DNS Servers

$dnsServers = (Resolve-DnsName -Name e-ins.net -Type NS).NameHost Resolve-DnsName -Name _ldap._tcp.dc._msdcs.e-ins.net -Type SRV | Where-Object {$_.NameTarget -in $dnsServers} ...

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Planning – IT Naming Convention

This post provides a consistent naming convention for your enterprise resources to ensure clarity, consistency, and easy identification. Importance of...