Posts by category
- Category: .NET
- Using MySQL Database for Blazor Server Web App
- Running Blazor Server Web App on Linux and Apache
- Run your App as Unix Daemon in Ubuntu
- Run a .NET Core C# Console App on Ubuntu
- Blazor Server – Basics Part 12 – Create a Native Blazor UI Toggle Button Component
- Blazor Server – Basics Part 11 – Create a Native Blazor UI Toggle Switch Component
- Blazor Server – Basics Part 10 – MS SQL Server Access and Data Binding
- Blazor Server – Basics Part 9 – Responsive Tags and Chips
- Blazor Server – Basics Part 8 – JavaScript interoperability (JS interop)
- C# Events and Delegates
- Blazor Server – Basics Part 7 – C# Events, Delegates and the EventCallback Class
- Blazor Server – Basics Part 6 – Query the on-premise Active Directory
- Blazor Server – Basics Part 5 – Authentication and Authorization
- Blazor Server – Basics Part 4 – Program.cs File
- Blazor Server – Basics Part 3 – Custom Layout
- Blazor Server – Basics Part 2
- Blazor Server – Basics Part 1
- Code Signing in Visual Studio
- Using Google’s OAuth 2.0 API for an ASP.NET Core Web App
- Azure AD – App Registrations vs. Enterprise Applications
- Create an ASP.NET Core Web App using Azure AD Authentication
- Create an ASP.NET Web Application (.NET Framework – Web Forms or MVC) using Azure AD Authentication
- Set up Active Directory Federation Services (AD FS 5.0) – Create an ASP.NET Core Web App (Model-View-Controller) by using OAuth 2.0 & OpenID Connect – Part 7
- Set up Active Directory Federation Services (AD FS 5.0) – Create an ASP.NET Web Application (.NET Framework – MVC) by using OAuth 2.0 & OpenID Connect – Part 6
- Set up Active Directory Federation Services (AD FS 5.0) – Create an ASP.NET Core Web Application (MVC) using WS-FED – Part 5
- The current .NET SDK does not support targeting .NET Core.
- Microsoft SQL Server LocalDB
- Set up Active Directory Federation Services (AD FS 5.0) – Create an ASP.NET Web Application (.NET Framework – Web Forms) using WS-FED – Part 4
- A fatal error occurred while creating a TLS client credential. The internal error state is 10013
- Global Assembly Cache (GAC) and .NET Framework Insights
- Load a custom Assembly in SQL Server Integration Services (SSIS) Script Task that is not or cannot be stored in the GAC
- Accessing Azure Storage Account File Shares from C# Applications
- Create a C# Console App (.NET Framework) to export Mail Attachments from an Exchange Mailbox
- .NET – How the Runtime Locates Assemblies
- Microsoft Windows SDK
- Category: AD CS
- How to use a SubCA Certificate issued by our internal AD CS PKI for the Squid Forward Proxy to generate dynamic Host Certificates
- How to request a Certificate from an internal PKI (AD CS) by using the Certreq Command without relying on the Web Enrollment service
- Set up Checkmk on SUSE Linux Enterprise Server (SLES)
- Automatically enroll Client Computer Certificates by using a GPO
- Set up a 2-tier PKI in Active Directory Certificate Services (AD CS) – Part 4
- Set up a 2-tier PKI in Active Directory Certificate Services (AD CS) – Part 3
- Set up a 2-tier PKI in Active Directory Certificate Services (AD CS) – Part 2
- Set up a 2-tier PKI in Active Directory Certificate Services (AD CS) – Part 1
- Set up a Key Recovery Server for the Microsoft certification authority (CA)
- Configure certificate auto-enrollment
- PetitPotam NTLM Relay Attack – Mitigating NTLM Relay Attacks on Active Directory Certificate Services (AD CS)
- Category: AD DS
- How to enable Remote Desktop by using Group Policies
- The Utilman.exe Hack combined with Windows Safe Mode to bypass XDR Solutions like CrowdStrike’s Falcon Sensor or Microsoft Defender for Servers
- Set up Microsoft Entra Connect
- Set up Split-Brain DNS in Active Directory
- What is Multicast DNS (mDNS) and how does it work?
- Impact of DNS Primary Suffix and DNS Suffix Search List on the DNS Name Resolution
- Set up Windows DNS dynamic Updates
- Set up Microsoft Defender for Identity
- What is Microsoft Entra Workload ID?
- What is Microsoft Entra Verified ID?
- What is Microsoft Entra Permissions Management?
- What is Microsoft Entra External ID (Azure AD External Identities)?
- What is Microsoft Entra ID Governance?
- What is Microsoft Entra ID?
- Set up and deploy BgInfo from Sysinternals in your Network
- Using Azure File Sync in combination with an on-premise DFS Domain Namespace
- Enroll Windows Computer into Microsoft Intune
- AWS – IAM vs. IAM Identity Center vs. Directory Service
- Office 365 Cross-Tenant Mailbox Migration (Corporate Merger Scenario)
- Domain Controller Protection via BitLocker Drive Encryption
- Windows Local Administrators Group Membership on Azure AD joined Devices
- ZeroConfigExchange & ZeroConfigExchangeOnce
- Prevent Members from Domain Users Group to Logon by default to any Domain joined Computers
- Prevent Branch Office Domain Controllers from registering generic DNS Records and Netmask Ordering
- Restore deleted Microsoft 365 Hybrid User
- DFS Domain-based Namespace Folders are missing after replacing Domain Controllers
- Force rebuild Active Directory Replication Topology across Site Links
- Upgrade Windows Server 2016 Domain Controllers and AD Schema to Windows Server 2019 | Raise Active Directory domain and forest functional levels
- Category: AD FS
- Set up Windows Hello for Business Hybrid Azure AD joined Devices
- Disable Mandatory Windows Hello for Business Prompt on Azure AD joined Devices
- How SAML 2.0 works
- How OAuth 2.0 and OpenID Connect works
- Modern Authentication Office 365
- Set up Active Directory Federation Services (AD FS 5.0) – Identity Protocols used in AD FS – Part 8
- Analyse AD FS SAML Claims with Fiddler
- Set up an AD FS Federation Trust between two Organizations
- Configure SAML SSO for Atlassian Confluence on-premises with ADFS
- Set up Active Directory Federation Services (AD FS 5.0) – Certificate Requirements – Part 3
- Set up Active Directory Federation Services (AD FS 5.0) – ADFS Reverse Proxy – Part 2
- Set up Active Directory Federation Services (AD FS 5.0) – Internal ADFS Server – Part 1
- Category: Amazon Web Services (AWS)
- AWS – Create a new Linux VM Instance and connect to using SSH
- Google Cloud Organization vs. AWS Organizations vs. Microsoft Azure Management Groups
- AWS VPC Routing
- AWS AD Connector Directory – Domain Join
- Set up AD Connector in AWS
- Set up IPSec route-based S2S VPN between pfSense and AWS VPC
- AWS Command Line Interface (AWS CLI)
- AWS – Organizations and Control Tower
- Installing or Updating the latest Version of the AWS CLI
- Category: Atlassian
- Category: Azure Arc
- Cheat Sheet Azure CLI and Azure PowerShell
- How to onboard on-premise Server to Azure Arc by using a Site-to-Site IPSec VPN and Azure Arc Private Link Scope
- Mastering Azure Update Manager – Part 3
- Mastering Azure Update Manager – Part 2
- Mastering Azure Update Manager – Part 1
- How to rename Azure Arc-enabled Server
- How to onboard on-premise Server (Azure Arc) and native Azure Server (VMs) to Microsoft Defender for Servers
- How to set up Arc-enabled VMware vSphere
- How to onboard on-premise Server to Azure Arc
- Category: BGP
- Mastering Azure Firewall Forced Tunneling Configuration
- Set up an Azure Hub-Spoke Network Architecture by using Azure Firewall and S2S IPSec VPN Cross-premises Network Connection
- Set up an IPSec route-based Site-to-Site VPN Tunnel between Azure and On-Premise (Home Network) where the VPN Gateway sits behind a NAT Router
- Azure VNet Routing
- Set up Dynamic Routing with FRR (Free Range Routing) in pfSense – OpenBGPD now Depricated
- IPSec dynamic route-based S2S VPN Tunnel between two pfSense Appliances
- Category: Blazor Server
- Category: brief
- How to install Azure CLI on Linux
- How to install Azure PowerShell on Linux
- Using Custom CSS in MediaWiki from Version 1.35 and newer
- Preventing Powered-Off Virtual Machines from Auto-Starting in vSphere HA
- Check TLS Version on VMware vCenter Server
- How to check for new Updates on Windows Server without automatically installing them
- Windows Cheat Sheet for essential Commands
- Mastering icacls and takeown
- How to elevate access to an Azure Subscription when you have assigned the Global Administrator Role in Microsoft Entra ID
- Linux handles SSH and SFTP Port Specification different
- The vMotion interface is not configured (or is misconfigured) on the Source Host
- How to Retrieve a Previous Hostname in Windows: A Quick Guide
- WordPress Draft Page not showing – There has been a critical error on this website.
- .Bashrc vs .bash_profile (or just .profile)
- Install VMWare Tools for pfSense in vSphere
- VMware ESXi change /etc/hosts by using the ESXCLI
- Linux Execute Shell Scripts – Source script.sh vs ./script.sh vs exec ./script.sh vs. bash script.sh
- What is PowerShell Dot Sourcing?
- What’s the Difference in Linux between the Commands SU – vs. SU without the Dash
- Using Match Directives in SSH (Secure Shell)
- Changing SSH Port on SELinux – Error: Bind to port failed: Permission denied
- Regenerate Self-Signed ESXi Host Certificates after changing Hostname
- Linux LVM – Remove Volume Groups and Logical Volumes
- Linux LVM – Rename Logical Volumes
- Linux LVM – Create a new Volume Group and Logical Volumes
- Best Practice for vCenter Server Version and ESXi Host Version
- Cheat Sheet – File System Commands in Linux
- Turn off read receipts in Microsoft Teams
- YaST (Yet another Setup Tool) Line Distortion on PuTTY Clients
- Extend ESXi Host Trial (Evaluation) License Expiration
- Create Anchor (aka Jump) Links in WordPress
- VMware vCenter Server Appliance – Failed to start file system check on /dev/disk…
- How to disable Certificate Revocation Check for Windows SSTP VPN?
- How to Run and Launch a Java JNLP File on Windows
- Configure Expires HTTP Headers and Cache-Control on Apache
- New subscription structure for Microsoft 365 in Europe
- Open Snipping Tool by default when pressing the Print Screen (PrtSC) Key in Windows 10/11
- Enable Python for Apache Websites
- Export/Import PuTTY Settings and Sessions
- Hot Potato vs Cold Potato Routing
- The trust relationship between this workstation and the primary domain failed
- OwnCloud Files not showing up in the Browser
- Visual Studio Yellow Triangle NuGet Package Missing Dependencies
- Linux Sudoers (sudo command) File
- Determine Data Location from your Microsoft 365 Tenant
- Control automatic external email forwarding in Microsoft 365
- Cloud Computing – Hyperscaler
- Convert pfSense into a Routing Only Platform
- Secure WordPress with fail2ban
- Remote Desktop Services (RDS) – Published RDP Icon is gone after publishing further Remote Apps later
- pfSense 2.6.0 Upgrade results on Hyper-VMs in very slow network speed
- MySQL – Access denied for user ‘root’@’localhost’
- Azure AD Connect – Unable to validate credentials due to an unexpected error.
- Teams PowerShell several Cmdlets doesn’t work – ErroUnable to cast object of type ‘System.Management.Automation.PSListModifier’ to type ‘System.String’
- Upgrade Windows Server from Standard to Datacenter on the fly
- Deleting Windows Folder recursive will failed with Access Denied
- Licensing mode for the Remote Desktop Session Host is not configured.
- Adjust a Date from Past or Future on Windows Server permanently
- Enable External Users for booking and adding Exchange Room Calendars
- Install Ubuntu as Hyper-V Generation 2 Virtual Machine
- Bypass Exchange Room Mailbox Delegation for specific Users
- pfSense Boot Loop after Power Outage
- SSH Session Timeout – TCP Keepalive
- Azure Stack Hub, HCI and Edge
- Microsoft SQL Server – FCB::Open failed: Could not open file mastlog.ldf for file number 2. OS error: 5(Access is denied.)
- Task Scheduler Task returns 0x1 for Batch File
- Longest Prefix Match aka Maximum prefix length match
- Exchange/Outlook Download Offline Address Book Error 0x80190194
- Window 10 Activity History – How to View and Delete
- Assign Microsoft 365 Licenses to a Group instead to each user by hand
- MiB and GiB vs. MB and GB momory size notation – What’s the Difference?
- Azure AD – Federated Domain vs. Managed Domain
- Exchange Online – Plus Addressing
- Exchange Classic Full Hybrid – Not all Mailbox Permissions fully supported and Automapping
- pfSense – enable the Thermal Sensors to display the CPU Temperature on the Dashboard
- Microsoft Teams exploratory License
- Exchange Server 2019 – Database Copy Component (HighAvailability) State is offline
- Bypass spam filtering in Exchange Online (Office 365) for specific Sender Domain
- pfSense 2.5.0 Bug – Router Advertisements Server is active by default on internal LAN Interface – Multiple Errors like – Renaming of LAN Interface or setting up OpenVPN Server runs into an error regarding IPv6 Configuration
- SCCM (System Center Configuration Manager) slow or stucking Console/GUI
- Microsoft Teams Direct Routing – Call Forwarding – AudioCodes Mediant VE SBC with DTAG SIP Trunk – Message Manipulation – Change displayed number from forwarded Calls
- Dell iDRAC RAC0225: Sending the test mail failed
- ACL , ACE , DACL, SACL, MAC and RBAC
- Let’s Encrypt certbot-auto depricated
- Set and Change the PowerShell default Working Directory
- Azurite emulator – emulating Azure Blob, Queue and Table services in your local environment
- Asynchronous Programming in C#
- Using a generic List with a custom data type in C#
- Using an array with a custom data type in C#
- Using List Tuples in C#
- pfSense enable Logging for Firewall Rules to log internal Client IPs
- msiexec – Uninstall broken Installations
- RDS Remote Desktop Services HTML 5 Client Setup
- Replace the self-signed Remote Desktop Certificate with an PKI Certificate from your internal CA
- What is the WoW64 (Windows 32-bit on Windows 64-bit) Subsystem?
- Category: C#
- Category: Cheat Sheets
- Category: Check Point
- Category: Dell PowerEdge
- Adding and Configuring a new ESXi Host in vSphere (vCenter server)
- Set up and Configure a VMware ESXi Host – Part 2
- Set up and Configure a VMware ESXi Host – Part 1
- Update Firmware, UEFI and Device Drivers for Dell PowerEdge Servers by using the Dell iDRAC Lifecycle Controller
- Update Firmware, UEFI and Device drivers for IBM x3650 M5 (5462) Server by using the Lenovo XClarity Essentials UpdateXpress
- Update Firmware and UEFI for IBM x3650 M4 Server by using the Lenovo XClarity Essentials Bootable Media Creator
- Category: DevOps
- Infrastructure as Code (IaC) – Part 6 – Terraform
- Infrastructure as Code (IaC) – Part 5 – Azure Automanage Machine Configuration (formerly called Azure Policy Guest Configuration)
- Infrastructure as Code (IaC) – Part 4 – Azure Automation State
- Infrastructure as Code (IaC) – Part 3 – Desired State Configuration (DSC)
- Infrastructure as Code (IaC) – Part 2 – Azure Resource Manager (ARM) templates
- Infrastructure as Code (IaC) – Part 1
- Category: E-Mail
- Set up Microsoft Defender for Office 365
- Email Authentication by using DMARC, DKIM and SPF
- Set up DMARC (verification) for Postfix on Ubuntu
- Set up DomainKeys Identified Mail (DKIM) for Exchange Online
- Configure Postfix to block and reject Unsolicited Messages or Spam
- Set up SPF and DKIM for Postfix on Ubuntu
- How to reject Emails in Office 365 they fail DMARC
- Set up DomainKeys Identified Mail (DKIM) on Exchange on-premise
- Set up Exchange on-premise to relay outbound Emails to the Internet via Exchange Online Protection (EOP)
- Enable TLS for Postfix on Ubuntu
- Setup Postfix Mailserver with Dovecot and MySQL on Ubuntu 18.04.4 LTS Step by Step
- Category: Exchange
- Offboarding Microsoft 365 Hybrid – Move to Cloud Only
- Configure Free/Busy Cross Request (Exchange Online and Exchange on-premise) when both Organizations are Hybrid
- Configuring federated sharing (free/busy calendar information) between Exchange Hybrid Organizations
- Configuring federated sharing (free/busy calendar information) between on-premise Exchange Organizations
- Removal of Exchange Certificate (New-,Renew-,Import-,Export-) Handling in Exchange Admin Center (EAC) Console
- Outlook 2016/2019 Click to run – Adding multiple Office 365 E-Mail Profiles – Sorry, another account from your organization is already signed in on this computer
- Renew Edge Subscription in Exchange Server after Cumulative Update
- Appendix – Azure AD Connect Sync Errors Detected – Large Attribute – Extension thumbnailPhoto
- Azure AD Connect Sync Errors Detected – Large Attribute – Extension thumbnailPhoto
- Enable Hybrid Modern Authentication for on-premises Skype for Business and Exchange servers – Part 2 SFB
- Enable Hybrid Modern Authentication for on-premises Skype for Business and Exchange servers – Part 1 Exchange Server
- Microsoft 365 Admin Center – Annoying Warning and Status Messages you can ignore
- Exchange Online – We are preparing a mailbox for the user – Accounts still have an on-premise Mailbox and ExchangeGUID is synced successfully to Office 365
- error – The connection to the server could not be completed | MRS Proxy Server
- Migration from onPremise to Office 365 – Part 4 -Troubleshoot Exchange Hybrid
- Migration from onPremise to Office 365 – Step by Step – Part 3- Move Users from Exchange onPrem to Exchange Online
- Migration from onPremise to Office 365 – Step by Step – Part 2- Exchange onPrem to Exchange Online (Exchange Hybrid Classic Full)
- Migration from onPremise to Office 365 – Step by Step – Part 1 – Azure AD Connect
- Category: Failover Clustering
- How to set up and provision Storage to Hosts by the IBM Storwize V3700 Storage System
- Replicate Virtual Machines between different Data Center by using Veeam Backup and Replication
- Migrate Virtual Machines between different Hypervisors by using Veeam Backup and Replication Instant VM Recovery
- Set up Azure Hyper-V Server 2022 for Nested Virtualization
- Set up and Deploy a VMware ESXi Host Cluster and Datastore Cluster
- Set Up iSCSI Virtual Disks as Shared Storage for an ESXi Host Cluster
- How to Set up a Microsoft Hyper-V Cluster
- Set up a Microsoft iSCSI Target Server
- Category: Fax Server
- Category: FreeBSD
- Category: General
- Mastering Azure Managed Identities
- Mastering NFS Protocol Versions and analyze required Traffic
- Introduction to Azure Service Principals – How to create and how to use them
- Set up the Squid Proxy Server as a Transparent Proxy on SUSE Linux Enterprise
- Azure Migrate – How to migrate on-premises VMware vSphere Virtual Machines to Azure (agent-based) – Part 5
- Set up the Squid Proxy Server on SUSE Linux Enterprise
- How to boot Linux from an Installation/Live CD to either repair a broken System or just to reset the Root Password
- Set up an Azure Storage Account and Blob Storage for NFS Access by using a Private Endpoint
- Set up an Azure Storage Account and Blob Storage for SFTP Access by using a Private Endpoint
- Mastering Linux DM Multipathing and iSCSI Block Storage on Red Hat Enterprise Linux
- Mastering Linux DM Multipathing and iSCSI Block Storage on SUSE Linux Enterprise Server
- Back up VMware VMs with Azure Backup Server
- How to install Checkmk Extension Packages (MKPs)
- How to set up a Custom Certificate on the Dell PowerVault ME5024 Storage Array
- Mastering iPerf on Linux and Windows
- Mastering vSphere Lifecycle Management (vLCM)
- How to mount SMB Shares on Linux
- How to enable Microsoft Entra ID Authentication by manually publishing Users into the vCenter Identity Broker (vIDB) and not by SCIM
- How to enable Microsoft Entra ID Authentication for vCenter Server by using the VMware Identity Service (Entra ID App)
- How to enable Microsoft Entra ID Authentication for vCenter Server by using the on-premises SCIM App by Microsoft
- Adding Windows Display Language for Windows Server without Internet Access
- How to replace the ESXi Certificate with a Custom Certificate
- How to renew/regenerate the vCenter Server Certificate
- How to change the vmxnet3 link speed of a Virtual Machine running in VMware vSphere
- How to Create a Custom ESXi Boot ISO Image with VMware Flings USB Network Drivers injected
- Advanced Cross vCenter Server vMotion (XVM) Capability
- How to expand the Windows OS Partition when there is a Recovery Partition directly placed behind
- How to update/upgrade vCenter Server (VCSA) by using the vCenter Server Appliance Management Interface (VAMI)
- How to set up Dante SOCKS5 Proxy on SUSE Linux Enterprise Server
- Using a Jump Host (Bastion Host) for SSH (Secure Shell)
- Set up NIC Teaming in Windows Server
- Mastering the mitmproxy (MITM interactive HTTPS Proxy) on Linux
- Mastering Oracle Linux Updates and Repos
- How to change VMware Disk Provisioning (Thick/Thin) afterwards
- Veeam Backup & Replication – Permanent failover failed – Error: There is no oib with id
- Troubleshooting Erros during the Execution of Java Applets using the Java Network Launch Protocol (JNLP)
- How to elevate a Linux User Account with Sudo Rights
- Mastering TShark (WireShark) in SUSE Linux Enterprise
- Perform a clean Deinstallation of VMware Tools manually in Windows Guest OS
- How to determine which Uplink (physical NIC) a Virtual Machine is using finally to send Uplink Traffic in vSphere
- How to install Root Certificates on Linux
- Azure Virtual Machines Stopped vs. Stopped (Deallocated)
- Set up Microsoft Entra Application Proxy to publish Remote Desktop (RDS)
- Mastering Microsoft Entra Application Proxy
- Set up SUSE Linux Enterprise Server 12
- Mastering Azure Application Gateway
- Azure Migrate – How to migrate on-premises VMware vSphere Virtual Machines to Azure – Part 4
- Azure Migrate – How to migrate on-premises VMware vSphere Virtual Machines to Azure – Part 3
- Azure Migrate – How to migrate on-premises VMware vSphere Virtual Machines to Azure – Part 2
- Azure Migrate – How to migrate on-premises VMware vSphere Virtual Machines to Azure – Part 1
- Set up an Azure Storage Account and Blob Storage for SFTP Access
- Set up Azure Site Recovery for On-Premise VMware Virtual Machines (Modernized) – Part 4
- Set up Azure Site Recovery for On-Premise VMware Virtual Machines (Modernized) – Part 3
- Set up Azure Site Recovery for On-Premise VMware Virtual Machines (Modernized) – Part 2
- Set up Azure Site Recovery for On-Premise VMware Virtual Machines (Modernized) – Part 1
- How to delete an Inaccessible Datastore in vSphere?
- Using USB Hard Disk Drives for Datastores in vSphere
- Set up Red Hat Enterprise Linux 9.4 Server
- How to deploy a vSphere Distributed Switch in vCenter
- Set up a SFTP Server on SUSE Linux Enterprise Server
- Mastering Network Configuration in SUSE Linux Enterprise Server
- Mastering Linux NetworkManager and its nmcli
- Register SUSE Linux Enterprise Server with SUSEConnect to the SUSE Customer Center (SCC)
- Mastering the Firewall on SUSE Linux Enterprise Server
- Enable Timestamps for Linux History Command
- How to monitor Windows Clients in Checkmk
- How to monitor VMware vSphere Environments in Checkmk
- Restore/Register a VM or VM Template in vSphere
- Deleting Azure Recovery Services Vault failed
- Set up Azure Bastion
- How to repair an Azure VM offline
- How to run Azure VMs in Safe Mode – RDP Service not available in Safe Mode – Using the Serial Console and Special Administration Console (SAC) for Azure VMs
- Veeam Backup and Replication v9.5 Installation on Windows Server 2022 – Error occurred during certificate processing
- How to extend LVM Logical Volumes stored on extended Disk Partitions instead on whole initialized Disks by using Growpart
- Enable the Enhanced vMotion Compatibility (EVC) Mode for a vSphere Clustertest
- Upgrade the VMware vSphere Environment from Version 7 to 8 – Part 2 – Upgrade ESXi Hosts
- Upgrade the VMware vSphere Environment from Version 7 to 8 – Part 1 – Upgrade vCenter Server Appliance
- Set up VMware Server in VMM
- Running System Center 2022 Virtual Machine Manager (SCVMM)
- Set up System Center 2022 Virtual Machine Manager (SCVMM)
- Set up an NFS Server on SUSE Linux Enterprise Server 15
- How to reset a forgotten or not knowing Root Password for Linux by using the GRUB Boot Loader
- vSphere Linux Virtual Machines – Extend Disks, LVM Logical Volumes and the File System
- VMware Virtual Machine using dedicated EFI System Partition Disk boots directly into GRUB2 Command Shell instead of booting the OS
- Export/Import Virtual Machines in VMware vSphere
- How to provision Storage to Linux Hosts by the IBM Storwize V3700 Storage System
- Set up a route-based Site-to-Site IPSec VPN Tunnel in Azure
- Restore On-Premise Virtual Machines to Microsoft Azure by using Veeam Backup and Replication
- Set up SUSE Linux Enterprise Server 15
- Set up a new WordPress Site at Kinsta
- Set up a VMware vSphere Environment – Part 2
- Set up a VMware vSphere Environment – Part 1
- Virtual Local Area Networks (VLANs) – Basics about Network Segmentation, inter-VLAN Routing & VLAN ACLs
- Microsoft Sentinel – a Cloud native SIEM Solution
- Software Defined Data Center (SDDC) vs. Private Cloud
- Explore the Microsoft Defender Family
- Set up Microsoft Defender for Endpoint
- Set up Microsoft Defender for Cloud
- Set up and deploy BgInfo from Sysinternals by using Microsoft Intune
- How to enroll already Microsoft Entra joined (former Azure AD joined) Devices to Microsoft Intune?
- Microsoft Graph PowerShell
- What is Azure Arc-enabled servers?
- What is Microsoft Entra?
- What is Microsoft Entra Global Secure Access (Private Access)?
- What is Microsoft Entra Global Secure Access (Internet Access)?
- Default outbound access for VMs in Azure will be retired on 30 September 2025 – How to transition to an explicit method of public connectivity
- Change Display Name in Azure for Azure AD joined Computers
- Azure Migrate – How to migrate on-premises Hyper-V Virtual Machines to Azure
- Set up Redis Object Cache on Ubuntu for WordPress and the LiteSpeed Cache Plugin
- How Azure AD Privileged Identity Management works?
- Network Security Groups (NSG) vs. Application Security Groups (ASG)
- Sysinternals and its PsExec Tool
- Configuration Manager – Management Point Critical Error
- Re-Create ConfigMgr SQL Server Indentification Certificate
- Co-Management with Microsoft Endpoint Configuration Manager and Microsoft Intune
- UDP hole punching, ICE, STUN & TURN
- Set up WireGuard Site-to-Site VPN on pfSense
- Set up WireGuard Point-to-Site VPN on pfSense
- VNet Peering between different Azure Active Directory Tenants
- Set up Google Cloud Directory Sync
- IBM x3650 M4 – RAID5 HDDs fail with preserved cache retained
- RDP to Azure Active Directory joined Windows 10 Computer
- How to reveal hidden WLANs (Hidden SSID)
- Google Cloud VPC Routing
- Azure – Create a new Linux VM and connect to using SSH
- Google Cloud – Connect to Linux VMs directly without Metadata or OS Login
- Google Cloud – Connect to Linux VMs using SSH OS Login
- Google Cloud – Create a new Linux VM Instance and Connect to using SSH Metadata
- Google Cloud – Create and Connect to a new Windows VM Instance
- Set up IPSec route-based S2S VPN between pfSense and Google Cloud VPC
- Set up your Organization for Google Cloud Part II
- Working Basics with the Google Cloud Platform (GCP)
- Microsoft Azure Management Groups
- Join Ubuntu to an Active Directory Domain using SSSD (System Security Services Daemon)
- Google Cloud CLI (gcloud)
- Google Cloud – Admin Console vs. GCP Console
- Google Cloud Identity
- Set up your Organization for Google Cloud
- Create a new Device Collection in System Center Configuration Manger (SCCM) for Windows Server 2022
- Manage Systemd Services with Systemctl on Ubuntu
- Set up Ubuntu’s Built-In Firewall
- Set up ownCloud on Ubuntu
- Set up SSH private/public Key Pair without using Password Authentication on Linux
- Installing SAP Data Intelligence on Azure Kubernetes Service – Part 3
- Installing SAP Data Intelligence on Azure Kubernetes Service – Part 2
- Installing SAP Data Intelligence on Azure Kubernetes Service – Part 1
- Prefer IPv4 over IPv6 in Windows Networks
- Wireless 802.11 RADIUS Authentication over Site-to-Site IPSec VPN Tunnel failed
- Set up a SFTP Chroot Jail on Ubuntu
- Active Directory Certificate Mapping – Implicit vs. Explicit
- Set up a RADIUS Server on Windows Server 2019 for 802.1X Wireless Connections
- Using HTTP Strict Transport Security (HSTS) with Apache2
- Numbering the IPv4 and IPv6 WAN Link between ISP and Customer
- Apache HTTP Server and .htaccess
- Set up Fail2ban on Ubuntu 20.04.3 LTS
- Nikto Web Server Scanner
- Set up ModSecurity (Libmodsecurity | ModSecurity v3 project) for Apache on Ubuntu
- Set up MediaWiki on Ubuntu 20.04.3 LTS
- Move Home Directory to another dedicated Drive/Partition in Linux
- Change Owner for Azure AD joined Windows 10 Devices
- Non Converged vs. Converged vs. Hyperconverged Infrastructure
- Set up a lean Branch Office Network without any Servers and DCs inside by using an IPSec S2S VPN Tunnel connected with the Headquarters Network
- Microsoft 365 Groups vs. Microsoft Teams Team
- Microsoft Bookings
- Azure AD Connect Sync Architecture – Simplified
- Azure Hybrid Cloud – Enable Azure AD Password Writeback and self-service Password Reset
- Set up Windows Autopilot – Production Environment from external – Part 2
- Set up Windows Autopilot – Part 1
- Configure Hybrid Azure AD join for managed domains
- Install Windows Subsystem for Linux (WSL)
- Primary Refresh Token (PRT) in Azure and Microsoft 365
- Providing SSO in Azure AD and Microsoft 365
- List of Authentication Protocols
- Set up Apache Superset on Ubuntu using Docker Compose
- Redirect from HTTP to HTTPS using the IIS URL Rewrite module
- Move-CsUser : HostedMigration fault: Error=(201), Description=(Cannot find user in Active Directory with the following SIP URI
- Set up an internal LAN and Perimeter Network with public IPv6 Addresses and pfSense
- Microsoft Teams Meeting – Start recording is greyed out
- pfSense – webConfigurator default Certificate expiring
- Set up a Perimeter Network with public IPv4 Addresses and pfSense
- Call Forwarding Teams Direct Routing with AudioCodes Mediant VE SBC and DTAG SIP Trunk – from external to external – no audio
- Office 365 / Exchange Online Block Sender Domain
- pfSense | Site-to-Site IPSec VPN | Subnets on each Site are identical
- Troubleshoot AudioCodes Configuration Wizard wrong settings for DTAG and Teams
- Migration from onPremise to Office 365 – Step by Step – Part 6 – Route your onPrem SIP Trunk to Skype for Business and Teams (Hybrid Voice Connectivity | Direct Routing)
- SQL Server Integration Services (SSIS) Basics – Script Task
- SQL Server Integration Services (SSIS) Basics – Load Data from a MySQL Database into SQL Server
- Manage Azure and Microsoft 365 services with PowerShell and CLI
- Migration from onPremise to Office 365 – Step by Step – Part 5 – Skype for Business onPrem to Skype for Business Online and Teams
- External Identities in Azure Active Directory
- Set up pfSense as a Forward Proxy with Squid and configure access for Linux and Windows Clients
- IPSec policy-based S2S VPN Tunnel between pfSense and an Azure VNet
- Set up an Azure SQL Managed Instance and connect over a S2S IPSec VPN from onPrem network
- Configuring a Syslog Server on pfSense with the syslog-ng Package
- Deploy WordPress in Azure App Service (Web App) with staging slots for the production and development environment
- Configure Windows Service Accounts and Permissions exemplary on SQL Server 2019
- Local user accounts in Windows
- Set up Group Managed Service Accounts (gMSA) vs. Standalone Managed Service Accounts (sMSA)
- Move Azure AD Connect to another Server
- Install Skype for Business Server 2019 Step by Step
- SSO Single-Sign-On to your onPremise RDS Remote Desktop Services 2016/2019 Environment
- Troubleshooting Skype for Business external sign-in issues and examine the client sign-in process
- Set up OpenVPN (pfSense) Point-to-Site (P2S) with RADIUS/Active Directory Authentification
- IPSec dynamic route-based S2S VPN Tunnel between pfSense and an Azure VNet
- Skype for Business Call Forwarding and Unified Messaging with Exchange 2013 | Step by Step
- Skype for Business Conferencing | Step by Step
- Configure Skype for Business Enterprise Voice with a SIP-Trunk (DeutschlandLAN SIP Trunk) and the Office Master Gate from Ferrari electronic AG | Step by Step
- SFTP / SSH Server unter Windows einrichten mit Cygwin | Step by Step
- Category: Google Cloud
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- Category: Microsoft 365 (Office 365)
- Installing AudioCodes Mediant VE SBC on Hyper-V
- Migration from onPremise to Office 365 – Part 7 -Troubleshoot Skype for Business Hybrid
- HCW8064 – HCW has completed, but was not able to perform the OAuth error when running Hybrid Configuration
- Set up AudioCodes Virtual Edition (VE) SBC in Azure for Microsoft Teams Direct Routing with DTAG’s SIP Trunk
- Set up Office Master Gate 5.0 with Microsoft Teams Direct Routing and DTAG’s SIP Trunk
- Restrict Access to Azure and Office 365 by Country
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