Microsoft Exchange and Active Directory Blog
Admittedly, the announcement is a little late, but we would still like to cordially invite all interested parties to the third meeting of the Exchange User Group OWL (EUGO) on 12.05.2017. The venue "Allegro Habichtshöhe" in Bielefeld will remain the same, but Andi has put a lot of effort into a new website especially for the EUGO. Registrations no longer need to be made on a ... Read more
During the migration from Exchange 2013 to Exchange 2016, the following error (version mismatch) may occur when moving user mailboxes from Exchange 2013 to Exchange 2016: A version mismatch was detected (Actual:6, Expected:5) The following message can then be seen in the Exchange 2013 server log: 2017-04-23T20:37:21.432Z,6,Default,Error,",", "RegisterMigrationBatch failed, exception at Microsoft.Exchange.Migration.MigrationServiceHelper.SafeInvokeImplMethod(Action method, MigrationServiceRpcMethodCode methodCode) at Microsoft.Exchange.Migration.MigrationNotificationRpcSkeleton.RegisterMigrationBatch(IMigrationNotification ... Read more
Windows Defender is integrated into Windows Server 2016 and is also activated by default. This can lead to problems if another managed virus scanner is installed. As most companies probably use a virus scanner from a third-party manufacturer (Symantec, Kaspersky, TrendMicro, Intel Security, etc.), it makes sense to uninstall Windows Defender. The uninstallation ... Read more
Although the official update to version 9.5 is not yet available, Sophos has released a mini update today. The update raises the version of UTM 9 to 9.412-2: The update contains the following bug fixes: Fix [NUTM-7483]: [Basesystem] Optimize LPC usage Fix [NUTM-7564]: [SUM] RED Link state is shown wrong in Gateway Manager ... Read more
In article 2, I had already written my opinion on RPCoverHTTP (Outlook Anywhere) in conjunction with Sophos XG and two public DNS names. Here again briefly to repeat: The background is that most of the protection mechanisms of the web server protection for Outlook Anywhere must be switched off. This then also applies to the remaining web services such as OWA ... Read more
In January, I published the first public version of the Exchange Autodiscover Whitepaper. So far the PDF has more than 5000 downloads, now there is an updated version. The PDF now comprises 64 pages on Exchange Autodiscover, including sample configurations (6 pages more). A revision was necessary, as I had previously only dealt with the topic of split DNS in conjunction with Autodiscover ... Read more
OPNSense is a fork of the well-known open source firewall PFSense, I personally like OPNSense better, the GUI is tidier, there is a REST api and the most important plug-ins are also available. As there is a plugin for HAProxy and also for Let's Encrypt for OPNSense, I have started testing this combination in conjunction with Exchange 2016. OPNSense ... Read more
Foreword This article is not meant to be completely serious. However, in my opinion, there are a few inconsistencies with the Windows Update. Creators Update for Windows Server 2016? Nils already published it on Twitter on March 15, Windows Update also offers the Creators Update on a Windows 2016 server: I found this funny and ... Read more
With Windows Server 2016, a new Privileged Access Management feature was introduced, which allows users to be added to a group for a certain period of time only and automatically removed again after this time has expired. This feature is useful if a user is only to be given administrative rights (e.g. Domain Admin) for a certain period of time. A ... Read more
The Chrome browser reports the following error for websites running on an IIS server on Windows Server 2016: ERR_SPDY_INADEQUATE_TRANSPORT_SECURITY In this case, Chrome does not allow the error to be ignored. The problem also occurs with Exchange 2016 servers installed on Windows Server 2016. The problem lies in old cipher suites and ... Read more
