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    Blog

    • Checking Ubuntu Pro's compliance and hardening options

      Posted on January 4, 2025

      Ubuntu Pro is Canonical’s subscription that bundles Expanded Security Maintenance (extra CVE patching for both the base OS and a long list of common packages), Livepatch (kernel patches without a reboot), and a set of compliance/hardening tooling on top. It’s free for personal use on up to 5 machines, which... [Read More]
      Tags:
      • Ubuntu
      • Ubuntu Pro
      • compliance
      • linux

    • What are passkeys

      Posted on May 13, 2024

      Understanding Passkeys: A New Era of Authentication [Read More]
      Tags:
      • passkeys
      • Multi-Factor Authentication
      • authentication
      • 2FA
      • MFA
      • Two-Step Verification

    • How to configure exchange online to block hyperlinks to zip top level domains

      Posted on May 23, 2023

      Import the Exchange Online PowerShell Module [Read More]
      Tags:
      • Email
      • Microsoft 365
      • Exchange Online

    • Unblocking yourself from WHM

      Posted on July 10, 2022

      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]
      Tags:
      • WHM
      • Linux
      • VPS

    • Configuring Microsoft Intune to automatically enable BitLocker with full volume encryption

      Posted on July 10, 2022

      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]
      Tags:
      • Microsoft 365
      • Intune
      • BitLocker

    • Implementing DMARC for Enhanced Email Security: A Guide for Systems Administrators

      Posted on May 23, 2022

      Introduction [Read More]
      Tags:
      • Email
      • Microsoft 365
      • Exchange Online
      • DNS
      • SFP
      • DMARC
      • Email Security

    • How to configure DKIM in Microsoft 365

      Posted on April 23, 2022

      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]
      Tags:
      • Email
      • Microsoft 365
      • Exchange Online
      • DKIM
      • DNS
      • Email Security

    • Configuring sender policy framework in Exchange Online

      Posted on April 23, 2022

      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]
      Tags:
      • Email
      • Microsoft 365
      • Exchange Online
      • DNS
      • SFP
      • Email Security

    • How to enable Windows Sandbox

      Posted on April 2, 2022

      Windows 10 and Windows 11 (Pro and Enterprise versions) include a great feature called Windows Sandbox. [Read More]
      Tags:
      • Virtualization
      • Windows 10
      • Windows 11
      • Windows Sandbox

    • What is virtualization

      Posted on March 26, 2022

      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]
      Tags:
      • Information Technology
      • Virtualization

    • Manually updating GVM

      Posted on January 22, 2022

      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]
      Tags:
      • Kali Linux
      • Cybersecurity
      • InfoSec

    • Using a security group for Dynamics 365

      Posted on January 16, 2022

      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]
      Tags:
      • Microsoft 365
      • Dynamics 365
      • Azure Active Directory

    • Kali, Postgres, GVM, and Troubleshooting

      Posted on December 26, 2021

      Everything was working well, that is until you decided to install a newer version of Postgres, right? [Read More]
      Tags:
      • Kali Linux
      • Cybersecurity
      • InfoSec

    • How to create a Windows 11 dev environment

      Posted on December 26, 2021

      If you want to be able to quickly create a Windows 11 Virtual Machine in Hyper-V, there is a Hyper-V Quick Create option that will take care of downloading the ISO and installing the OS for you. [Read More]
      Tags:
      • Windows 11
      • Hyper-V
      • Walkthrough

    • How does email work

      Posted on December 11, 2021

      Almost everyone uses email daily, but have you ever asked how your email reaches another person? [Read More]
      Tags:
      • Email
      • RFC
      • DNS

    • Blocking spoofed emails

      Posted on December 11, 2021

      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]
      Tags:
      • Email
      • RFC
      • DNS
      • SPF
      • Email Security
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