E-mail flow.

Using Valimail to help with SPF,DKIM,DMARC monitoring with Microsoft 365

This post revolves around the e-mail concepts for SPF/DKIM and DMARC to increase your e-mail reputation as well as protecting your domain from being misused by others i.e impersonation. We will also go through the tool provided by Valimail to have this monitored, all integrated with your Azure AD for SSO.

problem

Solving terrible performance in application using folders with high filecount

Recently I was troubleshooting terrible application Performance for a windows application.
This application is using files and directories located on a file server.
The file server OS was Windows server 2016 and the clients are Windows Server 2019 Citrix terminal servers.

The application uses seperate client folders containing files pr client, with alot of files inside the various folders – some more than others.
In this specific there were tens of thousands of files in some client folders.
Performance on the application was intermittently slow, and it could take upto 15 minutes to switch between one client and another inside the application Read on to get the solution

Microsoft Teams Banner

Microsoft Teams unable to send and receive calls after update to 1.5.x

Users are currently experiencing outage to expected functions inside Microsoft Teams. Vital functions inside the apps like the ability to do calls, video, meetings etc, are broken for a random group of users across a multitude of user groups.
Around where I am based the discussion started to show itself at the end of january. Troubleshoothing has been ongoing since then, with limited results to an acualt fix.
The temporary fix have been around rolling back to version 1.4 for users that have experienced the issues. But, as Teams gets updated automatically, this is very temporary.
There has also not been very clear as to why only some users have been affected.
During the last week or so, this has become more clear.

Read on for details and a temporary workaround until this gets resolved

How to configure screensaver settings on non-enterprise editions of Windows with Intune

his is another post to deal with one of thelimitations of the various licensing editions of Windows.
To be specific, there are certain features that are only available if you have an Enterprise or Education edition of Windows.
This post beeing around the limitation of controlling the settings around enforcing and controlling the screen saver on devices via intune.
As always, every problem has a solution, or a viable workaround.

problem

Solved: Error opening files from SharePoint / OneDrive

Have been seeing some users getting the following errors when trying to open files from OneDrive for Business.

It doesn’t happen on all files, but for some, no specific event causing the behavior. .
If the user takes a copy of the file giving the error, then opening the copy, works as expected

Holding back the upgrade to Windows 11 with Intune

With Windows 11 pushing its way towards your environment’s devices, you may find the need to hold back this upgrade to some or maybe all your devices, for any reason. Holding back the upgrade can be done via Intune for easy deployment to your devices. Script can be found in the post.

pointing

Manageability – Part 1: Naming Conventions

When it comes to managing anything within IT, it will always be a good thing to keep things organized, in one way or another. You should also make sure that the way you organize things, is made understandable for others as well (maybe you share the responsibility of management with a group, or may do so in the future).
Make it a habit to creating an organizational model that others can jump in or out of over time, that is logical and understandable by others than yourself. Document the logic/model that is defined, and make sure not to deviate from the actual definition as time goes by.

Office 365 Splash

Security: O365 – did you remember to disable legacy authentication before October 13, 2020?

If you have kept up to date with the many announcements around 365 – spesifically Exchange Online, from Microsoft, you may remember that they announced that end of support for basic authentication were coming to various parts of Exchange Online in 365.
Subscribers of O/M365 should move to using modern authentication, as this is more secure and gives alot of other benefits.
The said date for this change was set to October 13 2020,

Security: How to enable sign-in with FIDO2 security keys on Windows 10 Devices and Azure AD

FIDO2 security keys are an unphishable standards-based passwordless authentication method that can come in any form factor. Fast Identity Online (FIDO) is an open standard for passwordless authentication. FIDO allows users and organizations to leverage the standard to sign in to their resources without a username or password using an external security key or a platform key built into a device. Read the post to see how you can enable this for your Azure ad and windows 10 devices.

Intune: Setting custom wallpaper and lockscreen on Windows 10 devices with PowerShell and Azure Storage Blobs

Many organizations want to deploy custom branded wallpapers and lockscreens on corporate managed devices. Doing this with Microsoft Intune is natively limited to Windows 10 Enterprise and Education. Follow this guide to see how you can do this with Intune and PowerShell toghether with Azure Storage Blobs.

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