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 →
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 →
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 →
When connecting to a domain or changing the computer name, if you get An Active Directory Domain Controller (AD DC) for domain “domain-name.com” could not be contacted error, here are some troubleshooting tips and tricks to fix this problem. It may appear due to a typing error or other internalRead 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 →
Jack Wallen shows you how easy it is to join an existing AlmaLinux server to an Active Directory domain via a web GUI. Image: Jack Wallen Must-read safety cover If you have started deploying AlmaLinux in your data center or cloud-hosted services, you may have a reason to join theseRead More →
Canonical made it easy for administrators to join Ubuntu Desktop to Active Directory domains. Jack Wallen walks you through the steps. Ubuntu 21.04 was made available last month, and it has been a hit with end users and businesses alike. While you won’t find a massive amount of new functionality,Read More →
Every time a company like Microsoft encounters vulnerabilities and bugs, it provides basic information to customers, including those of the company. We might think that enterprise customers would be the first to get rid of the loophole and protect their privacy, but that’s not always true. Applying Windows Zerologon PatchesRead More →
Manage and integrate Microsoft® Active Directory® (AD) is a challenge for administrators looking to unify their environment. Active Directory works wonders if the environment is all Windows® and on-site, but in the evolution of the remote working environment, this creates more challenges. Ability to integrate Mac®linux®, and applications outside theRead 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 →
By Megan Anderson Posted on December 4, 2019 In the modern era of cloud services, many have wondered why they should build a domain controller. Of course, Microsoft® Active Directory® (AD) requires a domain controller to run AD domain services. This is one of the reasons. But why is itRead 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 →
The case of a domain join or non-domain join is the decision that network administrators and domain administrators must make for work and school networks. For many years, joined domains have been the “method” of choice for businesses to secure and manage their Windows domains. It was a proven method;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 →