Implementing Geo-filtering with IIS

This week, I had an interesting issue to resolve–one of my customers previously hosting their architecture on-premises was utilizing geo-filtering services provided by their ISP.  These geofiltering services were provided at the network layer, so filtered requests never reached the environment.… [ Continue reading ]

Update to the AAD Connect Advanced Permissions tool

Two updates for the tool in a week?  Yes! It is so!

At the behest of my good friend Darryl and one of his customer’s needs, I have updated the the AAD Connect Advanced Permissions tool with the following:

  • Allow the underscore (“_”) character to be used in an OU name path
  • Allow CN= to be used as part of the OU filter name path, since some organizations may want to try to scope permissions specifically to CN=Users.
[ Continue reading ]

Update to the Office 365 Proxy PAC Tool

I have updated the Office 365 Proxy PAC tool to allow selection of the US Department of Defense XML feed for proxy bypass configurations.

You can see previous updates for the tool:

Update to the Office 365 Proxy PAC tool

Updates to Office 365 Proxy PAC Generator

And of course, the updated tool is available on the TechNet Gallery, with a couple of other bugfixes that some people reported (invalid characters/smart quotes appeared in some versions of the file, which have been corrected): https://gallery.technet.microsoft.com/Office-365-Proxy-Pac-60fb28f7[ Continue reading ]

Office 365 Groups and Anonymous External Senders

I have created a more detailed example of how to do this here: https://bhr.62e.myftpupload.com/2018/09/14/fixing-office-365-anonymous-group-write-back-and-external-delivery/

Office 365 Groups are glorious creations.  There are, however, some instances where they don’t work as you anticipate (or hope). One of those scenarios is when you are configured in hybrid coexistence with the following scenario:

  • Office 365 Group Writeback is enabled (for configuring permissions, see this script)
  • RequireSenderAuthenticationEnabled is set to False for an Office 365 group
  • Your organization’s MX record is configured to point on-premises

In this scenario, external emails sent to Office 365 groups (via your organization’s MX record pointing on-premises) will be returned with one of our favorite NDRs:

“You do not have permission to send to this recipient.”… [ Continue reading ]

Disable Skype SKUs across all users

This week, I was presented with a question from a partner who was in the middle of the Skype for Business portion of a larger merger and acquisition migration project. The customer had enabled the Skype for Business license for all users in the tenant (including users who hadn’t migrated for other domains and forests), and since neither the hybrid configuration nor DNS were complete, messages and calls were undeliverable. … [ Continue reading ]

Update to Advanced AAD Connect Permissions tool

Since its initial creation, I’ve made a few updates to the Advanced AAD Connect permissions tool.  The most recent updates:

  • 2017-10-11 – delegating write permissions to the CN=adminSDHolder,CN=System container
  • 2017-10-05 – delegating write permissions to the ms-DS-ConsistencyGuid property

These two updates should allow for a more complete AAD Connect permissions delegation experience. … [ Continue reading ]

Office 365 Secure Score Script

In light of the discovery that a recent comprise involved administrator credentials that were not protected with multi-factor authentication, I thought revisiting http://securescore.office.com might be a good idea.

For the uninitiated, Secure Score is a tool that we provide to examine some configuration items and give guidance on others in respect to creating a more secure operating environment for your Office 365 tenant. … [ Continue reading ]

Use AAD Connect to disable accounts with expired on-premises passwords

This week, I received an email from a colleague asking if there was a way to work around the default behavior described in https://docs.microsoft.com/en-us/azure/active-directory/connect/active-directory-aadconnectsync-implement-password-synchronization:

Password expiration policy

If a user is in the scope of password synchronization, the cloud account password is set to Never Expire.[ Continue reading ]

OneDrive for Business Admin Tool

Update: I’ve also added some new features, detailed in https://bhr.62e.myftpupload.com/2017/10/16/recovering-from-crypto-or-ransomware-attacks-with-the-onedrive-for-business-admin-tool/.

While updating a script I wrote to remove the “Shared with Everyone” folder in OneDrive for business, it dawned on me that there are a number of bulk management tasks for OneDrive that are not easy to do, that we don’t have specific guidance on, or only have little bits of information scattered around the interwebs.… [ Continue reading ]

Advanced AAD Connect Permissions Configuration

Updated with additional requirements and scenarios, 2017-10-26.

I recently worked with a customer that needed assistance in configuring the additional permissions required for AAD Connect delegation.  After chasing down an incredible number of prerequisite information, I decided it would be more helpful to my customer to put together a tool that would help them configure the various permissions delegations.… [ Continue reading ]

Manage Office 365 Distribution Groups via Excel spreadsheet or CSV

A consultant friend of mine posed an interesting question to me this week–one of his customers wanted to be able to let his users administer a cloud-managed Office 365 distribution group by uploading a CSV or Excel spreadsheet.  From an administration perspective, I have done an incredible amount of directory management tasks using CSVs, so this didn’t seem like that difficult of a task.… [ Continue reading ]