Enterprise Operating Systems

Troubleshooting and Guides for: Microsoft Server, Linux, and VMware

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Dell Hardware/Software Guides

Dell Servers – PowerEdge, Blades, and Cloud
integrated Dell Remote Access Controller (iDrac)
OpenMange Server Administrator (OMSA)

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Scripting Guides

PowerShell, Bash, JSON, and Python Scripting Guides

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Using Managed (System) Identities to access Azure Key Vault

crtechtipsAug 25, 20233 min read

A common challenge that integrators run into is managing secrets and subsequently, managing access to secrets. Azure Key Vault is a service that developers can use to store their secrets, keys and other sensitive data. However, there is still a…

How to Configure Exchange Server 2016 for SMTP Application Relay

crtechtipsJun 16, 20239 min read

In most organizations there are several devices or applications that need to use an SMTP service to send email messages. An Exchange 2016 server can provide that service for you, however the configuration required on the server depends on the SMTP relay…

Cloning Azure VMs

crtechtipsMar 9, 20232 min read

Cloning an Azure virtual machine is something I thought it was directly integrated (as in, one click/command and that’s it, but no, it involves several steps. However, it is not complicated, and in this post I will explain how to…

Converting PFX File to PEM file using OpenSSL in Windows 10

crtechtipsFeb 21, 20231 min read

Converting PFX File to .Pem file using OpenSSL in Windows 10 . Windows 10 – Version 1607 or Above – Some Application never allow .pfx file to import directly. Running Ubuntu Bash shell become much simpler in Windows 10 In…

Adding DNS Servers in All DHCP Scopes using PowerShell

crtechtipsFeb 21, 20231 min read

To Get all Scopes – Open PowerShell – Run as Administrator Get-DhcpServerv4Scope To Check DNS Servers Option 006 Get-DhcpServerv4Scope| Get-DhcpServerv4OptionValue| Where-Object{$_.OptionID -like6} | FT Value To Check – Whatif Get-DhcpServerv4Scope| Set-DhcpServerv4OptionValue-DnsServer172.21.10.20,,, –Whatif To Apply Get-DhcpServerv4Scope| Set-DhcpServerv4OptionValue-DnsServer172.21.10.20,,, To Check if its…