Exchange 2019
Exchange 2019:- October 2023 Security Update KB5030877
In my blog post yesterday where I show cased that a bad actor can get the Exchange Server version with CU/SU you are running and based on that information if not patched start attacking your server. In the October 2023 Security Update for Exchange, KB5030877 for both...
Exchange 2013/2016/2019:- How NMAP reveals Exchange Server information.
Over the past few years, Microsoft Exchange Server has come under heavy attack and with each new Cumulative Update (CU) and Security Update (SU), CVE's are addressed and closed. The problem comes in when organisations do not patch servers (as mentioned in a few of my...
Exchange 2019:- Applying CU13, SUv2 and CVE-2023-21709 Vulnerability Fix
Microsoft released V2 of the August Security Update for Exchange 2019 which includes an extra step that addresses a vulnerability. In this blog post, we will cover the following: Quick overview of Exchange 2019 CU13 install Quick overview of applying the Security...
Exchange 2019:- Uninstall fails with RPC errors
In our environments, there may come a time when you need to make changes, for example you may need to retire servers as your footprint is reducing or you have a problematic server that you want to remove, which-ever scenario you are in that involves, it may require...
Exchange 2019 – Don’t forget to update the TLS certificate name after renewing your SSL certificate
As Exchange/IT Admins, updating an SSL certificate is easily achieved using the Exchange Management Shell (EMS) and normally assigning the services to the new SSL certificate and performing an IISRESET, everything carries on working, however if you have updated your...
Exchange 2019:- No option in the EAC to create SSL certificate request anymore.
For those familiar with Exchange and have been working over the years with it, whether it is Exchange 2013, Exchange 2016 and Exchange 2019, you normally login to the Exchange Admin Center (EAC) and then create your certificate request directly from there. With...
Exchange 2013/2016/2019:- Are you over exposing your server to the internet?
If you are new to Exchange, let me bring you up to speed with how attacks have increased since 2020 and Exchange servers that are published to the internet are vulnerable if not locked down. Back in the day, Admins would not patch anything because "it worked" and why...
Exchange 2019:- Running the install on Windows Server 2022
With Windows Server 2022 now supported, I moved my lab from Exchange 2019 running on Windows Server 2019 Core to Windows Server 2022 Core. I did a complete reinstall as you cannot do in-place upgrades on Exchange Servers and domain controllers. My DC's are also now...
Exchange 2019 :- Updating ESET Mail Security for Exchange to V9
ESET Security product for Exchange does a pretty good job in handling emails and blocking malicious content but I have found that some versions have caused headaches for Exchange and I have had to roll back to a previous version. You have the ability to perform two...
Exchange 2016/2019 :- Apply the October 2022 Security update
The October 2022 security updates for the different Exchange versions are out and it is advisable to update your servers. In my lab, I am running different versions of Exchange servers but I updated my 2019 Exchange servers today. I added a few screenshots to show you...