Microsoft Exchange and Active Directory Blog
Since I started using NoSpamProxy as a spam filter and S/MIME gateway at the beginning of the year, I also created a corresponding PRTG sensor for the most important values. With the PRTG PowerShell Sensor, NoSpamProxy can be monitored quite effectively. If anyone can also use the script, it can be downloaded here: The script must then be installed in ... Read more
I recently added 3 Ubiquiti (UBNT) switches to my private network. After replacing the old switches with the new UBNT switches, these now also had to be integrated into the monitoring. I use the free version of PRTG to monitor my network. For the Unifi access points there is already ... Read more
After I already wrote about the defective ISO here, I encountered another error. The Exchange Server 2016 installation keeps failing with the error "Installation product \exchangeserver.msi faild. Fatal error during installation. Error code is 1603." aborted. During my search, I came across several solutions, but none of them led to the goal. Read more
Today I had another problem that almost made me despair. I'm supposed to migrate an Exchange 2013 environment to Exchange 2016. Not difficult so far. But Exchange 2016 cost me a few more gray hairs today. Error: During the installation or the schema extension, the Exchange server displayed the following error message: An ... Read more
In my last article about a free S/MIME certificate for signing and encrypting emails, I made a stupid mistake. In the last article, I recommended the CA DGNCert, which offers free S/MIME certificates, but the CA itself is not stored as a "Trusted Root Certification Authority" in Windows. So as long as the root certificate is not manually ... Read more
Jan Kappen has written a great HowTo on the subject of Grafana, InfluxDB and PowerShell. Jan describes the installation, configuration and use of Grafana and InfluxDB on his blog: Grafana, InfluxDB and Windows PowerShell - Part 1 Grafana, InfluxDB and Windows PowerShell - Part 2 Grafana, InfluxDB and Windows PowerShell - Part 3 Grafana, InfluxDB and Windows ... Read more
Update 25.02.2019: There is a new article here, as this article is no longer valid. Update 29.01.2019: See note/update at the end of the article. DGNcert is not stored as a trusted certification authority in Windows as I claimed. Therefore, please read the update at the end of the article first and then the comments. So far, Comodo has been a reliable ... Read more
DMARC is based on the SPF (Sender Policy Framework) and DKIM (Domainkeys Identified Mail) technologies. DMARC can be used to determine how a recipient should deal with a mail that does not correspond to the sender's DKIM or SPF settings. In addition, the recipient can send reports to the sender for evaluation. In this way it is possible ... Read more
MTA-STS (Mail Transfer Agent-Strict Transport Security, STS for short) is a fairly new tool for making sending and receiving mail more secure. MTA-STS has now been adopted as RFC-8461 and can therefore be used. Similar to DANE, information is stored in the DNS for STS. The big difference, however, is that STS does not require DNSSEC ... Read more
The year 2018 felt like it flew by, at least for me, so I would like to wish all visitors, readers, supporters and friends a happy and, above all, healthy new year. It's almost a tradition for me to publish a short review here. FrankysWeb has been around for over 8 years now. The number of visitors ... Read more
