Network Security Groups (NSG) vs. Application Security Groups (ASG)
In Azure you can use a network security group to filter network traffic between Azure resources in an Azure virtual…
Sysinternals and its PsExec Tool
Today I was running into an issue where I couldn’t connect to a bare-metal remote server in the branch office…
Removal of Exchange Certificate (New-,Renew-,Import-,Export-) Handling in Exchange Admin Center (EAC) Console
Microsoft removed in its latest cumulative update releases for Exchange Server the following options from the Exchange Admin Center console….
Using Azure File Sync in combination with an on-premise DFS Domain Namespace
In this post I want to show how to set up Azure File Sync in combination with an on-premise DFS…
Configuration Manager – Management Point Critical Error
In my lab environment the Microsoft Endpoint Configuration Manager (MECM) formerly System Center Configuration Manager (SCCM) was showing a critical…
Re-Create ConfigMgr SQL Server Indentification Certificate
Recently I encountered issues on my Microsoft Endpoint Configuration Manager (MECM) server and especially its management point role regarding some…
Co-Management with Microsoft Endpoint Configuration Manager and Microsoft Intune
In my post below I was showing how to set up co-management with System Center Configuration Manager (SCCM 1910), now…
Hot Potato vs Cold Potato Routing
Hot Potato and Cold Potato are two terms which describes how internet traffic is routed between different autonomous system (AS)….
UDP hole punching, ICE, STUN & TURN
Today I want to take a closer look about what UDP hole punching is and how it works. Commonly it…
Set up WireGuard Site-to-Site VPN on pfSense
In my last post I was showing how to set up a Point-to-Site VPN (P2S) by using WireGuard on pfSense….