What are passkeys
Understanding Passkeys: A New Era of Authentication
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How to configure exchange online to block hyperlinks to zip top level domains
Import the Exchange Online PowerShell Module [Read More] -
Unblocking yourself from WHM
WHM provides some decent out of the box security tools. Those include iptables, cPHulk Brute Force Protection, and fail2ban. cPHulk and fail2ban have their own chains in iptables. If you are using both, you may end up getting locked out of WHM and not knowing how to log back in.... [Read More] -
Configuring Microsoft Intune to automatically enable BitLocker with full volume encryption
There is a great article at TechNuggets that explains how to Enable BitLocker Silently using Autopilot and Intune. One capability I was hoping existed was to not just enable Intune to Automatically enable BitLocker but to enable it using Full Volume Encryption instead of the default configuration of encrypt used... [Read More] -
Implementing DMARC for Enhanced Email Security: A Guide for Systems Administrators
Introduction [Read More] -
How to configure DKIM in Microsoft 365
DomainKeys Identified Mail (DKIM) is a solution for determining if the content of an email was modified after it was sent and to verify that the domain provided in the From address matches the domain name in cryptographic signature added by DKIM.1 [Read More] -
Configuring sender policy framework in Exchange Online
Before you change the configuration of your Exchange Online environment or public DNS, you should be comfortable with understanding what Sender Policy Framework (SPF) is and why it is important to properly configure. I wrote a introduction to SPF named, Blocking Spoofed Emails. [Read More] -
What is virtualization
As we start the year 2022, many people in technology refer to “virtual” servers, and “virtual” private servers (VPS), and “virtual” machines. What are these platforms, what makes them virtual, and what someone use them for? [Read More] -
Manually updating GVM
After reading Kali, Postgres, GVM, and Troubleshooting you may have GVM up and running on your linux machine. Next, you probably want to update the the Greenbone Community Feeds. If you previously used the Greenbone VM, you may be expecting the feeds to update automatically but if that doesn’t happen,... [Read More] -
Using a security group for Dynamics 365
As organizations move away from on-premises Active Directory (AD) to Azure Active Directory (AAD), there will be resources which were previously managed on-premises Active Directory security groups. When an account is created in AAD the account does not exist in on-premise AD (unlike if you create the account in on-premise... [Read More] -
Kali, Postgres, GVM, and Troubleshooting
Everything was working well, that is until you decided to install a newer version of Postgres, right? [Read More] -
How does email work
Almost everyone uses email daily, but have you ever asked how your email reaches another person? [Read More] -
Blocking spoofed emails
TLDR; Who is allowed to send email for your domain name? Did you know you can tell the whole world which servers are allowed to send email from your domain name (and therefore, email sent from servers which you have not authorized should be considered fraudulent and the receiving email... [Read More]