Try our new Certificate Revocation List Check Tool
CRLcheck.exe is a tool developed to verify digital signatures of executable files. It collects files from known paths on your client, checks their signature, and checks Certificate Revocation Lists (CRL) and OCSP download. This helps avoid delays in launching files.

Category: Microsoft Server OS

Microsoft Exchange Server SE (Subscription Edition) ab Herbst 2025

  Exchange SE (Subscription Edition), Exchange 2019 Nachfolger mit in-place Upgrade |   Microsoft hat gerade Release-Informationen und eine Zeitlinie für die Einführung der neuen Exchange SE (Subscription Edition) veröffentlicht. Kunden können weiterhin rein On-Premises oder im Hybridmodus arbeiten, wie es ihren Bedürfnissen entspricht. Neu wird die Exchange SE jedoch ausschliesslich im Abonnementmodell erhältlich sein. […]

CRL check, Zertifikatsperrlisten Software, Certificate Revocation List Check Tool zum suchen aller geblockten CRL in Firmenumgebungen, crlcheck.exe

Mit diesem Tool findet man schnell und einfach alle verwendeten CRL eines clients und kann prüfen ob der client diese erreicht.   In den vergangenen Jahren habe ich persönlich miterlebt, wie die Zertifikatssperrung auf Windows-Systemen oft unterschätzt wird, selbst in großen Unternehmen. Dieses Problem beeinträchtigt sowohl Client- als auch Server-Systeme erheblich, wenn es nicht korrekt […]

WSUS ImportUpdateToWSUS.ps1, March 2024 security update DC fails SRV 2019 and 2022 how to fix all steps

03/2024, out of Band patches for DC crash KB5037422, KB5037425, KB5037423, KB5037426   DEUTSCH ENGLISCH     We explain how to import the 4-5 manual patches for Server 2012R2, 2016, 2019, 2022 and what to fix if you get an error when you run the script to ImportUpdateToWSUS.ps1 to import the patches into […]

Windows Update Server Import Fehler Powershell KB5037422, KB5037425, KB5037423, KB5037426

Notfall Patche, Out of Band patche für Domain Controller DC crash KB5037422, KB5037425, KB5037423, KB5037426   DEUTSCH ENGLISCH   Um die 4-5 manuellen Patches für Server 2012R2, 2016, 2019 und 2022 zu importieren und zu erklären, was zu tun ist, wenn beim Ausführen des Skripts “ImportUpdateToWSUS.ps1” zum Importieren der Patches in WSUS ein […]

CRLcheck.exe Certificate Revocation List Check Tool to verify all CRL and OCSP on Windows client

CRLcheck.exe Certificate Revocation List Check Tool to automatic verify CRL and OCSP internet reachability of all your EXE files that your client runs.     Over the past 20 years, I have personally witnessed how Certificate Revocation on Windows systems is often underestimated, even within large enterprises. This issue significantly affects both client and server […]

Managing external time server NTP on Microsoft Server DC and Vmware ESX in Switzerland

    Managing Windows Time Service: A Comprehensive Guide The Windows Time service (W32Time) plays a crucial role in synchronizing the date and time for all computers managed by Active Directory Domain Services (AD DS). This article delves into the tools and settings used to effectively manage the Windows Time service. Default Synchronization By default, […]

Exchange CVE-2024-21410 2016 2019 Extended Protection Kemp-F5 and Modern Hybrid Mode problem

Exchange CVE-2024-21410 2013/2016/2019 Extended Protection Kemp-F5 and Modern Hybrid Mode problem Primary target which is part of the attack: Make sure you ROLLOUT the Outlook.exe 02/2024 Patch. That is the most important thing. Esp. On Home Office/Remote Office which may have SMB/445 to WAN open and for VPN users NO traffic to/via VPN-2-HQ policy (Which […]

Microsoft Patch KB5034439 Server 2022 also fails on SRV 2022 without Recovery Partition

Microsoft Patch KB5034439 Server 2022 also fails on SRV 2022 without Recovery Partition or with too small recovery Partition (Free space under 250MB) ERROR: KB5034439, 0x8024200B, 0x80070643 ERROR_INSTALL_FAILURE. PATCH: 024-01 Security Update for Microsoft server operating system version 21H2 for x64-based Systems (KB5034439). Status 12.01.2024 —————————————————– Microsoft has releases two PowerShell with which you should […]

Mcafee/Trellix EPO Server, Logon failed due to a full database disk (SQL cleanup)

Had a case where the McAfee EPO DB almost blew due to an EPO issue or, let’s say, McAfee prevented it from happening by encountering SQL Express limitations. We’re relieved that since EPO 5.X, they’ve implemented two databases; one for EPO and one for Events; effectively splitting the load in size and safeguarding the crucial […]

Azure/M365: Kann AZURE Dein Active Directory (DC) ersetzen?

Ersetzt Azure die Active Directory Domain Controller und Active Directory Services? Der eigentliche Zweck von Azure-AD ist was? Azure Active Directory wurde entwickelt, um Microsofts Präsenz in der Cloud zu erweitern. Azure Active Directory sollte ursprünglich Benutzer mit Microsoft M365-Diensten verbinden und eine einfachere Alternative zu ADFS für Single Sign-On bieten. Nun hat es sich […]

Active Directory accounts with ADMINSholder/adminCount flag | No syncback from Azure, ms-ds-consistencyGuid

english, Management summary To gain a better understanding of the ADMINSholder/adminCount attribute, we recommend referring to the provided blog posts, which shed light on the impact of this flag, particularly regarding ActiveSync and GPO. This attribute poses a challenge in the synchronization process of the Synchronization Service Manager (Microsoft Azure AD Connect Synchronization Services) as […]