Month: January 2021

How to access an Exchange Online mailbox without a license

An Office 365 or Microsoft 365 Admin will hopefully have a separate admin account to perform higher level (privileged) tasks, compared the their standard user account. As a result, admin accounts should not need any license, because they are not used as a normal user. A person should not need to have two sets of…




Microsoft Teams – Quickly add a Webhook to a Teams channel and send a message using PowerShell

I just discovered the possibility to add Webhooks to a Teams Channel. Since webhooks are nothing new to me, i wanted to know if my PowerShell Scripts i created when i was playing last time with Webhooks if they’re working with the Teams API as well – surprise, i created a Webhook and sent a…




Resolving MAC Address Conflicts in VMware ESXi

Evey once in a while it happens again. You run virtual machines on an ESX server and something seems to be wrong with the network communication. you search and search and find that mac addresses are assigned multiple times. Resolving MAC Address Conflicts in VMware ESXi When cloning virtual machines the VMX file stores information…




Get your WAN/public IP address using PowerShell and ipify.org

I just discovered the ipify.org service to quickly get your public / WAN IP address. https://www.ipify.org/ – API Usage for IPv4 So to get the WAN / public IP address using PowerShell (New-Object System.Net.WebClient).DownloadString(‘https://api.ipify.org’) Or get it as JSON and ConvertFrom-Json-it (New-Object System.Net.WebClient).DownloadString(‘https://api.ipify.org?format=json’) | ConvertFrom-Json Yeah, i know, my WAN IP is visible in the…