VMWare VM Server OS & NIC Tuning Optimizations

VMWare VM Server Tuning – Windows OS & VMXNet3 Network Card Optimizations   In Windows, Open a command prompt window with elevated permissions and execute the following commands displayed in RED.   [Display the TCP stack settings] C:> netsh int tcp show global   [Disable specific TCP stack parameters] C:> netsh int tcp set global chimney=disabled C:> netsh int tcp set global autotuninglevel= disabled C:> netsh int tcp set global ecncapability= disabled C:> netsh int tcp set global netdma= disabled C:> netsh int tcp set global rsc= disabled   I usually put these commands […]

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Disable the Clutter feature in O365 mailboxes

To disabled the clutter feature in a user’s O365 mailbox run the following command:   Turn off Clutter for single user Get-Mailbox –identity someone@somewhere.com | Set-Clutter -enable $false    OR   Single mailbox: Set-Clutter -Identity <user name> -Enable $false      If you want to disable this feature for all users in your tenant as an admin, you can do this with […]

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Delete all Calendar events from a mailbox

Connect to O365 using powershell first   Open PowerShell or EMS If this is an O365 mailbox, you will need to connect to the O365 environment Connect to Exchange On-line From the PowerShell console on an Exchange 2010 server: $Cred = Get-Credential  $s = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://ps.outlook.com/powershell -Credential $cred -Authentication Basic –AllowRedirection  Import-PSSession $s    Then run this command in powershell: Search-Mailbox -identity “UsersMailbox” -SearchQuery kind:meetings -DeleteContent   

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How to copy old user’s mailbox to another user’s mailbox on Office 365 and Exchange Server using PowerShell

You will come across the issue with leavers mailboxes needing to be transferred to another users mailbox. If you are looking after on-site exchange, then the process is slightly shorter as you don’t need to connect to the remote Powershell.   To connect to O365 first run this PS command: $Cred = Get-Credential  $s = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://ps.outlook.com/powershell -Credential $cred -Authentication Basic […]

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Bulk import email aliases to Office 365 using Powershell

If you need to add email aliases to O365 accts in bulk use the following (EMS) powershell command with the CSV file formatted this way:   Name ProxyAddresses user1@domainold.com user1@domainnew.com   Run this in EMS: Import-Csv C:\email-aliases.csv | ForEach-Object{ $name = $_.Name }  Import-Csv C:\email-aliases.csv | ForEach-Object{ $proxy = $_.ProxyAddresses -split ‘;’}  Set-RemoteMailbox -Identity $name -EmailAddresses @{add= $proxy}    OR   Get the display name and email […]

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How to Add Computers to a Domain Using PowerShell

Performing a Domain Join Using PowerShell Once you’ve established correct DNS resolution for the domain name, start a PowerShell prompt with local administrative privileges. Press the Windows key to switch to the Start menu, type PowerShell and press CTRL+SHIFT+ENTER. If prompted, enter a local administrator username and password, or give consent to run PowerShell. In the PowerShell prompt, type add-computer –domainname ad.contoso.com -Credential AD\adminuser […]

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How to Get the Serial Number of a Remote Computer Using PowerShell

Retrieving the Serial Number from a Local Computer The get-ciminstance PowerShell command was introduced in PowerShell 3.0. It allows administrators to run WMI queries on local or remote computers. To retrieve the BIOS serial number of the local computer, we need to access the Win32_BIOSWMI class. Log on to Windows Server 2012 R2, click the PowerShell icon on the desktop taskbar. In the prompt window, […]

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Understanding In-Place Hold and Litigation Hold in Exchange

Litigation Hold was first introduced in Exchange 2010 and is designed to preserve all items in a mailbox indefinitely for the purposes of e-discovery. Litigation Hold can be applied to mailboxes or distribution groups. When a user’s mailbox is put on Litigation Hold, they are still able to delete items, but Exchange retains the deleted items indefinitely with immutability. For […]

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Virtualizing Microsoft Exchange Tips and Tricks

Are you looking at reducing hardware cost and utilizing your virtualization infrastructure to run your Exchange servers? Are you still on edge about virtualizing a mailbox role or unified messaging role? Today I’ll be sharing some tips for virtualizing Microsoft Exchange that I’ve picked up over the years – hopefully some of them may help ease your Exchange anxiety. Virtualization and Exchange are […]

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