Office 365 SMTP, IMAP & POP Server Settings (Explained). Firstly, a mail server is a program that takes incoming email from local users and remote senders and routes outgoing messages for delivery. To use Office 365 to receive or send these emails, you need to synchronize it with Microsoft Outlook. To do this, you need to use […]
Protecting Against Phishing Attacks in Office 365. Sorry to start on an alarmist note, but here are the facts: 3.4 billion phishing emails and phishing attacks are predicted to compromise 33 million data records in 2023 alone. By definition, phishing is an online social engineering attack in which the attacker tries to deceive a user into […]
How to Secure Azure AD Against Cyber Threats. In 2022, Mandiant discovered UNC3944-related malicious behavior focused on Microsoft Azure. According to research conducted by Mandiant, the attacker used the Serial Console on Azure VMs in an attempt to install malicious remote management software. This is just the latest addition to a long list of cyberthreats […]
What is Event ID 4771: Kerberos Pre-Authentication Failed. Event ID 4771 is a common error message that is generated by the Windows security auditing feature. It typically indicates that a user’s Kerberos pre-authentication attempt has failed. In this article, we’ll explore the causes and consequences of this error message and discuss best practices for troubleshooting […]
How to Use NSLookup Command on Windows (Examples). Nslookup is a command in Windows used for obtaining information about domain names and the Internet Protocol (IP) addresses associated with those domain names. For example, the nslookup command is highly useful in obtaining different types of information using DNS queries, such as mail exchange server information, […]
Azure AD Connect Force Sync PowerShell/ Synchronization Service Manager. As a default, the synchronization cycle in Azure AD is executed every 30 minutes. However, sometimes, as an Azure administrator, you may need to make urgent changes to on-premises AD objects and want them synchronized immediately with Azure AD. For instance, forcing a sync is necessary, […]
How to Setup Active Directory on Windows Server 2022. One of the most notable features of Windows Server that helps it stand out in the Enterprise sphere is Active Directory. All in all, Active Directory is a great tool for enhancing security for organizations, enabling administrators to have a centralized user and rights management. The latest […]
Get-AzureADAuditSignInLogs – Find Sign In Logs for Last 30 Days with PowerShell. Since its inception more than 10 years ago, PowerShell’s command line interface (CLI) has proven to be a vital tool for managing local and remote Windows, macOS, and Linux systems. One of its vital uses in server administration is finding the sign in […]
Domain Controller Security Best Practices – Hardening (Checklist). In 2020 Microsoft released a patch that would fix Zerologon vulnerability that affected domain controllers. The vulnerability allowed attackers to gain access into domain controllers. How? By exploiting a flaw previously found in the Netlogon Remote Protocol cryptographic scheme. In turn, this vulnerability served as a further […]
Top 15 Office 365 PowerShell Commands (Users, Groups, Licensing). As a Windows PowerShell user, I am aware that using PowerShell for Office 365 administration may seem complicated to a lot of Office 365 users. However, in my experience, despite of this, Windows PowerShell is an extremely useful tool for managing Office 365. For example, instead […]
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