Insights

Holographic Brain ImageHolographic Brain Image

blog

  • Blog

    Why HTTP is not suitable for IOT applications.

    When developing modern web-applications, the most commonly used application layer protocol is HTTP. It is suitable for serving hypermedia resources in a request-response fashion over the internet. However, when it comes to the Internet of things (IOT), it tends to perform poorly mainly because it was designed to be a reliable but heavy-weight protocol for the…

    Concurrency
  • Blog

    ServiceNow CSM – Consumer and Consumer User Craziness!

    Within ServiceNow Customer Service Management, I’ve found that most implementors and users tend to leverage B2B capabilities, and thus contacts and accounts.  This works great for those scenarios – but what about B2C?  That is, what about those scenarios when your organization is interacting not with other businesses, but with individual consumers? In those cases…

    Concurrency
  • Blog

    Diagnosing Slow Page Loads due to CRL Checks

    Recently, a support ticket was opened for an issue where a couple of websites were slow to load after blocking outbound internet access from a VM.  The IP addresses of these websites were whitelisted, but the browser would hang for about 30 seconds before they’d load.  In the end, we found that the SSL certificate…

    Concurrency
  • Blog

    AIA Location #2 – Unable to download

    While setting up my Two-Tier PKI Hierarchy, I ran into an error on my issuing CA where my AIA Location #2 was unable to download. I viewed this error using the PKIVIEW tool. I right clicked on the AIA Location # 2 and copied the URL. From there, I opened a web browser and paste the…

    Concurrency
  • Blog

    ServiceNow Test Management: Accelerate the Management of Testing Processes

    Getting Started If you don’t know already, ServiceNow provides some amazing toolsets that allow your organization to author tests and simplify the overall testing experience of a software application within your instance. You might think that I’m talking about “Automated Test Framework”, but I’m actually speaking to “Test Management”. This feature is located within the…

    Concurrency
  • Blog

    Attack Surface Analyzer

    Overview and Uses Attack Surface Analyzer, shortened as ASA, is used to compare or track the state of a server as changes are made.  It is specifically geared towards DevOps or security engineers for seeing what changes 3rd party software software makes to the system, with the goal of analyzing it for potential security risks.  However,…

    Concurrency, Inc.
  • Blog

    Key-based Authentication for OpenSSH on Windows

    This is a follow up to a previous post: Getting Started with SSH on Windows Server 2019.  If you haven’t yet installed and configured SSH, start by reading that first. Key-Based Authentication Overview The previous post leaves off with SSH enabled and working with username and password authentication.  If you want to enable key-based auth instead, you…

    Concurrency
  • Blog

    Troubleshooting Blocked Ports

    One of the more common networking issues we look at is where some or all ports between servers are being blocked.  Typically, this is due to a misconfiguration, but being able to find the details of the issue is invaluable in tracking down the cause. Basic Port Tests When testing for blocked ports, it’s important…

    Concurrency
  • Blog

    Fixing Invoke-WebRequest

    Recently, we noticed that build times for Terraform deployments in Azure DevOps were taking an unusually long time, sometimes as much as three to five minutes per build. Upon further investigation, one of the steps that held up the build process the longest was the step to download Terraform. The download step, which downloads terraform…

    Concurrency, Inc.