IIS Exploit can reboot your Windows Server; install patch KB3042553 ASAP

This week Microsoft release a patch for Windows 7/Windows Server 2008 R2 and up that fixed a critical remote execution bug, see MS15-034 and CVE-2015-1635 for more info. Unfortunately the patch was reversed engineered and now an exploit is available. This was detected and described by ISC SANS. They added Denial of Service (DoS) as possible impact, next to Remote Code Execution. As it turns out, the DoS in question actually causes a Blue Screen of Death (BSoD, also known as bugcheck)

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Some things to do after leaving Windows Server 2003 (from an Exchange perspective)

Today the Exchange Team blog posted an article about upgrading the Domain Functional (DFL) level of your Active Directory environment away from Windows Server 2003 and the fact that raising the level might have some impact on your Exchange servers (and other applications). It is possible that they might not be able to authenticate. If you do run into issues after raising the DFL, the solution is either restarting the Kerberos Key Distribution Center service on all DC’s or restarting all DC’s

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Do not update your Office Web Apps Server with automatic updates

Although it is not exactly required to deploy with Exchange Server 2013, Office Web Apps Server (OWAS or also referred to as WAC server) provides a more user friendly experience instead of the standard Web Preview. For Lync Server 2013 it’s a requirement if you want to be able to present PowerPoint files in a conference. And well, for SharePoint Server it’s just a given. So, it’s not an uncommon server to encounter when you work with these products. However

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Exchange 2013 CU7, Exchange 2010 SP3 RU8 and Exchange 2007 SP3 RU15 are out!

Update 12 december 2014: The fixed Exchange 2010 SP3 RU8 with v2 is now available. Same location as the plagued v1. Update 10 december 2014: Exchange Server 2010 SP3 RU8 has been pulled due to connectivity issues with Outlook. There is currently not ETA on the fix. Customers are advised to not install this RU8 or remove RU8 if they already installed it. The initial Exchange Team blog post has been amended with this new info. As of now no other

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Mail enabled Public Folders on Exchange 2013 CU6 require action for internet mail to be received

So, CU6 is out. It’s easy to overlook the change mentioned within the Exchange 2013 Release Notes. And you might have missed the Exchange Team blog post about all Public Folder changes with CU6. And it might not be relevant for your situation. But I know certain customers rely on mail enabled Public Folders that are able to receive internet mail and are now on Exchange 2013. Sometimes it’s not practical to change those Public Folders to a Shared Mailbox.

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Released: Exchange 2013 CU6, Exchange 2010 SP3 RU7 and Exchange 2007 SP3 RU14

Today Microsoft released the 6th update to Exchange Server 2013, aptly named Cumulative Update 6 (CU6), the seventh update to Exchange Server 2010 SP3; Rollup Update 7 (RU7) and the 14th update to Exchange Server 2007 SP3 named Rollup Update 14 (RU14). They mostly contain smaller security fixes and/or bug fixes or DST (Daylight Saving Time) updates. Having said that, the most eagerly awaited and important fixes in Exchange Server 2013 CU6 include: Hybrid Configuration Wizard fix for Exchange 2013

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The UC Architects Episode 35: Service Packed! is available now!

A few days ago episode 35 of The UC Architects podcast went live! Service Packed! With Steve Goodman hosting, joined by John Cook, Michael Van Hybrid, Michel de Rooij, Serkan Varoglu, Ståle Hansen and yours truly. Our editor was the legendary Andrew Price. In this episode we talk (a lot) about Exchange Server 2013 Service Pack 1, a quick review of the new features and the detected Transport bug and how we feel about that one. If you have plans

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Exchange 2013 SP1 is out! And now?

Yesterday the Exchange Team finally released Exchange 2013 Service Pack 1 (SP1). And even as promised within early 2014! Nothing like a major release to get those blog writing blocks lifted . Download SP1 here and see their blog here. Be sure to check out the release notes and the What’s New page. So, what now? Hopefully many of you have installed previous Cumulative Updates (CU). But even if you haven’t (although I hope you’re not still stuck with CU1

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Exchange Server 2013 Service Pack 1 news!

So, no Cumulative Update 3 (CU3) news but as promised by the Exchange Team they posted Exchange 2013 Service Pack 1 (SP1) news on the Exchange Team blog! It is coming early 2014, which I interpret as the first quarter of 2014. Because I now think CU3 will be released somewhere around early December (hint), I think SP1 could hit us around March. But I’ve been wrong before There are some features mentioned: Windows Server 2012 R2 Support This is

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Can we expect Exchange 2013 CU3 and 2010 SP3 RU3 soon? Keep watching KB2891587 and KB2892464!

UPDATE 2013/11/20: It looks like the links currently don’t work anymore, possibly because they referenced a non-released update. That’s too bad, but even when the update is not available yet this kind of information is still quite valuable (something I pointed out in a comment on the Exchange Team Blog The Road Ahead post) Just about an hour ago I saw a bunch of Knowledge base articles published for Exchange 2013 issues. All of them are fixed by Cumulative Update

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