Tag Archives: powershell

[Office 365] Delete a user account sitting in Recycle bin

1 Reply

Normally, user accounts that are deleted within Office 365 sit in "The recycle bin" where they can be recovered if needed. You can't, however, delete users from that gray area within the web GUI. If you wanted to, say, delete and remove the license from a user and create a non-licensed shared mailbox, you're boned without emptying it from the recycle bin first.

Before you start,you'll need Microsoft Online Services Module for Powershell

  • http://onlinehelp.microsoft.com/Office365-enterprises/ff652560.aspx

To remove a specific user account from the Recycle Bin

  1. Connect normally, except add in connecting to the MSO server
    1. $LiveCred = Get-Credential
    2. $Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://ps.outlook.com/powershell/ -Credential $LiveCred -Authentication Basic -AllowRedirection
    3. Import-PSSession $Session
    4. Connect-MSOLService -Credential $LiveCred
  2. The ReturnDeletedUsers switch returns accounts found in the recycle bin. To return all:
    1. Get-MSOLUser -ReturnDeletedUsers
  3. If you find the account you want to remove, it's a simple cmdlet to do so: where "Email Address" is the upn of the actual account
    1. Remove-MSOLUser -UserPrincipalName "Email Address" -RemoveFromRecycleBin
  4. If you're removing an account in order to recreate it, you'll have to wait 5-10 minutes before O365 will allow you to recreate over the deleted account.

If you don't have a problem nuking them all, you can empty all via piping the get to the remove

#Haven't tested this one; have a nagging you may need to fill an array and foreach through all the elements actually.

Get-MsolUser -ReturnDeletedUsers | Remove-MsolUser -RemoveFromRecycleBin -Force

 

Get MD5 Hash of a file via PowerShell/Windows

Leave a reply

Want to check the hash of a huge file you downloaded on your shady network and have a machine running powershell? Then you are in luck!

Execute the following script to output the hash of the file you want to validate:

$FilePath = "c:\Users\MyAwesomeUser\Desktop\myreallybigfilethatisprobablyaniso.iso"
$md5 = new-object -TypeName System.Security.Cryptography.MD5CryptoServiceProvider
$hash = [System.BitConverter]::ToString($md5.ComputeHash([System.IO.File]::ReadAllBytes($FilePath)))
Write-Host $hash.Replace("-","")

Hope this helps!

Get samaccount/username out of Active Directory via PowerShell

Leave a reply

Here is how to get a list of everyone's username out of active directory.

Get-ADUser -Filter * | FT SamAccountName -A

Common PowerShell Commands for Office 365

Leave a reply

Here are some commands that are handy to use for Office 365.

#Assign user credentials to variable "LiveCred"

$LiveCred = Get-Credential

#Connect to your Cloud-hosted Exchange using the credential stored in #LiveCred

$Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://ps.outlook.com/powershell/ -Credential $LiveCred -Authentication Basic -AllowRedirection

#Import Cmdlets

Import-PSSession $Session

#Close your session

Remove-PSSession $Session

#Grant Bob Barker calendar (or any folder) rights to Adam Sandler's. The field within " " can be either the user principal name or primary alias
#Possible   rights:  Ownder, Publishing Editor, Editor, Author, Contributor, Reviewer, Custom
#Note: practice-wise (for your own mental check), the account being given access is normally to the right of the account to which you are assigning the right.

Add-MailboxFolderPermission -Identity "The.Dude:\Calendar" -AccessRights PublishingEditor -User "Test Guy"

#View permissions on a folder

Get-MailboxFolderPermission -Identity "The Dude:\Calendar"

#View all accounts that have mailbox access beyond SELF

Get-Mailbox | Get-MailboxPermission | where {$_.user.tostring() -ne "NT AUTHORITY\SELF" -and $_.IsInherited -eq $false}

#The export to a file version of above

Get-Mailbox | Get-MailboxPermission | where {$_.user.tostring() -ne "NT AUTHORITY\SELF" -and $_.IsInherited -eq $false} | Select Identity,User,@{Name='Access Rights';Expression={[string]::join(', ', $_.AccessRights)}} | Export-Csv -NoTypeInformation mailboxpermissions.csv

#Grant user Send-as to identity

Add-RecipientPermission <identity> -AccessRights SendAs -Trustee <user>

#View all boxes that have Send-as attributes on them

Get-RecipientPermission | where {($_.Trustee -ne 'nt authority\self') -and ($_.Trustee -ne 'null sid')}

PowerShell Script To Create Folders From CSV

Leave a reply

This script will read in a csv named users.csv and create a bunch of directories from it. A log file will be written named logfile.log

###########################################################
# MODIFIED: Jack Stromberg
# DATE : 7/19/2012
# COMMENTS: $_.FirstName and $_.LastName are the column names in the csv file
###########################################################
# Get current directory and set import file in variable
$path = Split-Path -parent $MyInvocation.MyCommand.Definition
$newpath = $path + "\users.csv"
# Define variables
$log = $path + "\logfile.log"
$date = Get-Date
# FUNCTIONS
Function createDirs
{
"Created following directories (on " + $date + ") " | Out-File $log -append
"--------------------------------------------" | Out-File $log -append
Import-CSV $newpath | ForEach-Object {
$dir = $path + "\" + $_.FirstName + "." + $_.LastName + "\"
$dir = $dir.ToLower()
New-Item $dir -type directory
}
}
# RUN SCRIPT
createDirs
#Finished

PowerShell - Disabled Execution

Leave a reply

If you see an error like this in PowerShell:
File ****************** cannot be loaded because the execution of scripts is disabled on this system. Please see "get-help about_signing" for more details.

Execute the following command:
Set-ExecutionPolicy RemoteSigned