Microsoft has shared information about a now-resolved known issue causing crashes of the Local Security Authority Subsystem Service (LSASS) and Windows Server Domain Controller. The Windows LSASS service is responsible for enforcing security policies and is used to manage access token creation, password changes, and user logins. If LSASS crashes,Read More →
News Microsoft begins confirming January patch issues affecting Windows Server Microsoft’s January security patches, released on Tuesday, are said to cause multiple problems for organizations, especially on the Windows Server side. Update 1/18Microsoft released “out of band” (unscheduled) quality updates on Monday, as noted here, to address issues caused byRead More →
Update Microsoft’s first Patch Tuesday of 2022 has, for some people, broken Hyper-V and sent domain controllers into boot loops. A Register reader contacted regarding KB5009624which they claim “breaks hypervisors running on WS2012R2”. “I’m dealing with this right now and it’s a problem,” our reader said. “After several attempts andRead More →
January’s Patch Tuesday left many Windows Server administrators in dire straits: domain controllers in boot loops, ReFS volumes unavailable, and Hyper-V refusing to boot. BeepComputer reports that administrators described domain controllers on all versions of Windows entering boot loops because the LSASS.exe process consumed all CPU resources and crashed theRead More →
Microsoft today warned customers to fix two Active Directory Domain Service privilege escalation security flaws that, when combined, allow attackers to easily take control of Windows domains. The company released security updates to address the two security vulnerabilities (tracked as CVE-2021-42287 and CVE-2021-42278 and reported by Catalyst IT’s Andrew Bartlett)Read More →
“ProxyShell” vulnerabilities have caused domain-wide ransomware attacks against victims, according to new research published Monday by threat intelligence provider The DFIR Report. ProxyShell is the name given to three Microsoft Exchange Server vulnerabilities disclosed in July that together are capable of elevating privileges and executing code remotely. According toRead More →
To ward off the attack known as PetitPotam, Microsoft advises you to disable NTLM authentication on your Windows domain controller. Image: iStockphoto/ipopba Microsoft is issuing an alert about a threat against Windows domain controllers that would allow attackers to capture NTLM (NT LAN Manager) credentials and certificates. In a noticeRead More →
Another potential mitigation has emerged for the PrintNightmare zero-day virus, which allows low-privileged users to run code as SYSTEM on Windows domain controllers: remove those people from a backwards compatibility group. The zero-day hole was revealed earlier this week after an infosec research firm mistakenly published proof-of-concept exploit code forRead More →
In a previous article here at TechGenix, we talked about the requirements to create an Exchange 2019 environment. In this tutorial, we will show you how to configure a Windows Server 2019 domain controller for Exchange 2019. For some this may be an easy task, but for new IT adminsRead More →
Auditing helps you collect activities performed by various components of an Active Directory domain controller. Microsoft provides audit configuration for domain controllers to help Active Directory administrators audit events such as Active Directory Replication Events, Active Directory Configuration Events, Active Directory Change Events, and others events that a domain controllerRead More →
Active Directory plays an important role in the operation of Microsoft Exchange. Active Directory and Exchange work closely together and if the domain controller becomes unavailable, Exchange will stop working due to its dependencies. In small environments, this can cause problems when only one domain controller has been configured –Read More →
Active Directory domain controllers are the backbone of the Active Directory subsystem. Any failure of an Active Directory domain controller can impact authentication and authorization services for users, computers, and applications running in your production environment. Microsoft has put a lot of effort into PowerShell scripting. Today, PowerShell is theRead More →
DNS is an integral part of the Active Directory subsystem. Without DNS, Active Directory functionality will not work. DNS is required when authenticating client computers, when GPO settings are applied to users and computers, and so on. Domain controllers must be configured to use the correct DNS settings in theRead More →
News Azure Active Directory Domain Services comes online Microsoft announced this week that its Azure Active Directory Domain Services are commercially available. The service, which facilitates authentication of access to so-called “legacy” applications running on Azure virtual machine infrastructure, has reached the milestone of “general availability”. The new service hadRead More →
News Microsoft publishes Azure Active Directory Domain Services and Proxy Previews Microsoft this week rolled out new preview releases for organizations using its Azure Active Directory services. The insights are remarkable for organizations attempting to leverage Microsoft’s Azure Active Directory cloud-based authentication services with their on-premises Active Directory identity andRead More →
Extract Active Directory Domain Services User Guide 2008. By John Policelli Posted by Sams ISBN-10: 0-672-33045-8 ISBN-13: 978-0-672-33045-2 In this chapter What’s New in Windows Server 2008 Active Directory Domain Services System requirements for Windows Server 2008 Installing Windows Server 2008 Active Directory has changed significantly in Windows Server 2008.Read More →