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Random Musings on Exchange and Virtualization

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  • Blog Post: Exchange 2010 Search Recommendations

    This article is intended to cover some of the best practices related to Exchange 2010 search. Whilst the search service has been continuously improved over the lifecycle of Exchange 2010 there are multiple items can need to be addressed. If these items are not addressed, then there is a very good chance...
  • Blog Post: Exchange 2010 SP3 RU9 Released

    The Exchange team today announced the availability of Update Rollup 9 for Exchange Server 2010 Service Pack 3. RU9 is the latest rollup of customer fixes available for Exchange Server 2010. The release contains fixes for customer reported issues and previously released security bulletins. Update 25-3...
  • Blog Post: Update 015-027 Revised (3002657)

    In the March 2015 security bulletin, update 15-027 was released. This is to address a vulnerability in the Netlogon component of windows that could allow spoofing. The security bulleting for 015-027 is available in the Security TechCenter . KB 3002657 provides details of the update. Please be aware...
  • Blog Post: Exchange ActiveSync Script To Grandfather Existing Devices

    As mentioned in the previous posts in this services, the configuration of Exchange ActiveSync was something that is commonly overlooked by many a consultant. Exchange ActiveSync allows any user to synchronise any device by default. If this is what your organisation wants to do, then you are good to go...
  • Blog Post: Retrieving Packets Received Discarded Perfmon Counter From Multiple Servers–Updated February 2015

    On the Retrieving Packets Received Discarded Perfmon Counter From Multiple Servers post, Tim commented that he had found the script very useful when troubleshooting discarded packets on Exchange 2013 DAG servers.  Using PowerShell  it is very easy to extend the search to discover which other...
  • Blog Post: Using Exchange PowerShell Remoting With Integrated Scripting Environment–ISE

    One item that is very prevalent is people directly loading the Exchange PowerShell snapin into the Integrated Scripting Environment (ISE). This is not supported from the Exchange point of view, as Exchange requires that Remote PowerShell be used with Exchange 2010 and 2013. Let’s look at how...
  • Blog Post: Creating PowerShell Profile For Integrated Scripting Environment – ISE

    In this post we will look at some of the mechanics behind creating a profile file which will customise the start-up behaviour of the Integrated Scripting Environment (ISE). This will also serve as a precursor to additional posts on tweaking ISE for Exchange purposes. The catalyst for writing this was...
  • Blog Post: Directly Loading Exchange 2010 or 2013 SnapIn Is Not Supported

    It is always interesting to see how certain constructs are carried over from previous versions of Exchange without being re-evaluated. The case in point here, is how access is provided to Exchange 2010/2013 PowerShell. Exchange 2010 introduced mail admins to remote PowerShell. At this time we should...
  • Blog Post: Recommendations For Exchange ActiveSync Organisation Settings

    It has been 5 years since Exchange 2010 was released and there is still a very common item that a lot of deployments have overlooked. This is the configuration of the ActiveSync Organization settings. These settings set the global options for devices connecting into Exchange 2010 and also Exchange 2013...
  • Blog Post: Impact Of Changing ActiveSync DefaultAccessLevel

    The default settings in Exchange 2010 and 2013 allow any user to synchronise any device. Depending upon your organisation's viewpoint this default may not be optimal. Ideally this should have been changed when Exchange 2010 or 2013 was first deployed. Doing so would have ensured that the appropriate...
  • Blog Post: PowerShell Script To Get Exchange 2010 Active CAS Connections

    Purpose of this script is to report on particular performance monitor counters for Outlook RPC Client Access, OWA and Exchange ActiveSync on multiple servers. This was required as during the course of the year there have been a few issues where the third party load balancer device was not really doing...
  • Blog Post: Exchange 2010 SP3 RU8 Released

    The Exchange team today announced the availability of Update Rollup 8 for Exchange Server 2010 Service Pack 3 . RU8 is the latest rollup of customer fixes available for Exchange Server 2010. The release contains fixes for customer reported issues and previously released security bulletins. In addition...
  • Blog Post: Exchange ServerName Points To Wrong Or Decommissioned Server

    This post was promoted from the draft bin to production after a customer visit a couple of weeks ago. When onsite we were looking at how the environment was configured. The admins had written a series of scripts to determine the environment state which was excellent to see! One thing that they had assumed...
  • Blog Post: Retrieving Cluster Error 1135 From Servers

    In some of the recent posts you will have noted that there have been some issues with VMware , and also network cards dropping packets in packets received discarded . One symptom of this is that nodes will be removed from the cluster and EventID 1135 is logged into the System log. EventID 1135 states...
  • Blog Post: Critical Schannel Vulnerability - MS14-066

    In the November 2014 security bulletin there were 14 updates released. The updates resolved security issues in IE, OLE and Schannel. It is the latter that is worth calling out for attention since this is the basis of the Microsoft implementation of SSL. Exchange makes heavy use of SSL, and is typically...
  • Blog Post: Disabling IPv6 And Exchange – Going All The Way

    When we are performing the Exchange Risk Assessment, one of things PFE love to check is how servers have been configured for IPv6. There have been numerous occasions where we have found servers whose admin has said that they have disabled IPv6, but when you look at the server it is not really disabled...
  • Blog Post: Awareness – Is Your Federation Trust Metadata Updated?

    Imagine the scenario -- all is working well with your Office 365 hybrid solution until you come into the office tomorrow morning and you get calls saying on-premises users are unable to see the free/busy information for mailboxes in Office 365. While this sounds like a bad dream, this reality could come...
  • Blog Post: Using ADPropertiesOnly With Exchange Virtual Directory Cmdlet Shows False Positives

    Previously we discussed an interesting feature of the Exchange virtual directory cmdlets where they check data stored in AD, rather than making a trip to the server and querying its IIS metabase. For the details on this, please read the original post here: Slow Response To Exchange Virtual Directory...
  • Blog Post: Set AdminSessionADSettings ViewEntireForest To True By Default

    In Exchange 2010 the Set-AdServerSettings cmdlet is used to manage the AD environment in the current Exchange Management Shell (EMS) session. In Exchange 2007 there was a variable called AdminSessionADSettings for the same purpose. Exchange admins normally use the Set-AdServerSettings cmdlet to change...
  • Blog Post: Exchange 2010 SP3 RU7 Released

    The Exchange team today announced the availability of Update Rollup 7 for Exchange Server 2010 Service Pack 3 . RU7 is the latest rollup of customer fixes available for Exchange Server 2010. The release contains fixes for customer reported issues and previously released security bulletins. For example...
  • Blog Post: How To Check Exchange Schema And Object Values In AD

    This content was extracted from a separate upcoming Exchange 2013 schema post to maintain focus on viewing the Exchange schema attributes. Exchange 2013 admins should assume that a Cumulative Update (CU) will have AD schema updates. The release notes and release blog post will discuss this in detail...
  • Blog Post: How To Rename DAG Network Using PowerShell

    Quick post for a Friday! A customer had an “interesting” issue where the DAG networks were not being displayed inside the Exchange Management Console. The underlying reason is because the implemented firewalls between Exchange servers, and then restricted network traffic between Exchange...
  • Blog Post: Retrieving Packets Received Discarded Perfmon Counter From Multiple Servers

    Whilst working on a customer’s Exchange 2010 DAG issue, I wrote a quick script to quickly grab some performance monitor counters from all of their Exchange servers. The issue that we were investigating was related to discarded packets when the VM was running on a certain hypervisor host. The customer...
  • Blog Post: Exchange and AntiVirus Exclusions – Still A Critical Conversation

    In a previous post we saw the Microsoft requirements for the exclusions that must be added to file system AV on Exchange servers. In a recent CritSit, basically an uber urgent support request where the customer is down or as good as down, I also got to examine some of the other causes for file system...
  • Blog Post: Exchange Scripting Agent - The Power Of Script

    Exchange 2010 introduced a very interesting feature – the Scripting Agent. The intent for this component is to provide extensibility to the base management tools and ensure consistency for the execution of cmdlets in the environment. The feature is not enabled by default and you must manually enable...