Moving FSMO Roles with Powershell

Another article about a command that I can never remember the syntax when I need it.

The information here is from: https://social.technet.microsoft.com/wiki/contents/articles/6736.move-transfering-or-seizing-fsmo-roles-with-ad-powershell-command-to-another-domain-controller.aspx

To transfer all roles use:

Move-ADDirectoryServerOperationMasterRole -Identity “Target-DC” -OperationMasterRole SchemaMaster,RIDMaster,InfrastructureMaster,DomainNamingMaster,PDCEmulator

To seize the roles append -Force.

You can also substitute the role names with numbers, making a more manageable:

Move-ADDirectoryServerOperationMasterRole -Identity “Target-DC” -OperationMasterRole 0,1,2,3,4 -Force

Much easier to remember than trying to remember which bit of the gui does which role.

Older servers use ntdsutil.exe:

https://support.microsoft.com/en-gb/help/255504/using-ntdsutil.exe-to-transfer-or-seize-fsmo-roles-to-a-domain-controller

Using subst to map a drive to help restore from a volume shadow copy

I needed to copy only missing files from a volume shadow copy back to a clients share after clearing out crypto malware encrypted files, and I found a new favourite command:
subst drive1: drive2:path
Substitutes a path for a drive letter, for example:
subst x: c:\users\adam\desktop

maps x: to my desktop in my profile.

Where this came in particular handy for me we using robocopy to restore files an folders out of a volume shadow copy (previous version).

I wanted to run robocopy a: b: /xc /xn /xo /s which only copies missing files, and does not copy existing files – regardless of age or difference, to extract missing files from the shadow copy.

So first I found the path to the file by right clicking on a file in the shadow copy and copying the location then running subst:

subst x: "\\localhost\C$\@GMT-2016.10.24-14.01.30\Server Shares\Company"

I could then run my robocopy from the x: drive.

Finished off with subst x: /d to remove the drive mapping.

Useful write up here:

https://chaoliu12.wordpress.com/2013/02/11/restore-files-from-shadow-copy/

And subst technet article here:

https://technet.microsoft.com/en-gb/library/bb491006.aspx

User Shell Folders location in the registry

I’m always having to look this up, for some reason the registry location just doesn’t stick in my head.

User Shell Folders (i.e. My Documents, Desktop, Favorites):

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders

Useful if you want to know if Folder Redirection is working.

Extracting useful user information from Exchange 2010 with Powershell

Finishing a migration to Office 365 and want to send the client a list of remaining user mailboxes that need moving (or deleting!).

get-mailbox and get-mailboxstatistics both have their uses, but I really needed to use something that combined them both.

I found the solution at https://www.experts-exchange.com/questions/28399371/Combining-Get-Mail-Get-Mailboxstatistics-To-Pull-UsageLocation-LastLogonTime.html

And adapted it to my own means:

Get-Mailbox -ResultSize Unlimited | sort-object | Select-Object Name, primarysmtpaddress, @{n="Mailbox Size";e = {$MBXstat = Get-MailboxStatistics $_.name; $MBXstat.TotalItemSize}}, @{n="LastLogonTime";e = {$MBXstat = Get-MailboxStatistics $_.name; $MBXstat.LastLogonTime}} | Export-Csv C:\temp\LastLogonTime.csv

This outputs the User name, Primary SMTP Address from get-mailbox and Mailbox size (formatted to MB) and last logon time from get-mailboxstatistics.

Reconnecting an Office 365 mailbox with an on-premise user

Hybrid Office 365 setup. User account is created on-premise, AD is synced, and then the user is licenced as an Office 365 user. Exchange won’t create the Remote User forwarder, so the user will only receive email from Office 365 (and external if the MX record has been switched to Office 365).

You can join the account up with the command:

Enable-RemoteMailbox Username -RemoteRoutingAddress “username@tennent.mail.onmicrosoft.com”

That will create the Remote Mailbox on Exchange with the forwarder email address.