MsExchange Blog Spot Telnet25

August 10, 2017

Exchange 2016 OU Picker is not Showing Organizational Units.

Filed under: General — telnet25 @ 1:02 am

Issue: Exchange 2016 CU5 , OU Picker is not showing Users within EAC ( Exchange Admin Center)

Cause: Web.config file needs to be modified “GetListDefaultResultSize” needs to be added with > number of existing OU ( Organizational Units) within the environment.

Notes: Web.config file is located on default exchange install directory under ECp folder “Program Files\Microsoft\Exchange Server\V15\ClientAccess\ecp”

It needs to be added with notepad ( opened with administrator privileges)

Each CU install will wipe these settings, therefore web.config file needs to be saved each time prior installing CU on Exchange 2016 Servers.

I have added few simple scripts to help you to develop baselines to implement in your environment

Web.config file is not server dependent, single file can be modified/saved and moved around Exchange 2016 servers, if desired.

  • Log onto Exchange 2016 Server, via RDP (Remote Desktop Protocol)
  • Provide your credentials at the logon.
  • Click windows tile and select PS (PowerShell)
  • Select to open PowerShell with administrator privileges
  • Type following press enter (note the installed directory)

$exinstall\ClientAccess\ecp

  • Type notepad on the PowerShell (Open notepad with administrator privileges)
  • Click file and select Open on the administrative notepad
  • Drill down to ECP directory under Installed directory ;
  • Program Files\Microsoft\Exchange Server\V15\ClientAccess\ecp
  • Locate web.config ( make sure on the bottom change to all files to locate the web.config)
  • Open web.config file

Press CTRL + F to bring up find menu and type “</appSettings>”

  • Locate the section
  • Add this line ( it does not exist in Exchange 2016 )

# below line must be edited above “</appSettings>” Section within the Web.Config File

<add key=”GetListDefaultResultSize” value="1500" />

  • Comments Added ( same line with comments)

<!– Each CU Install will Wipe This File. –>

<!– Save a backup copy of web.config file –>

<!– After CU install you can copy and paste backup web.config file –>

<add key="GetListDefaultResultSize" value="1500" />

  • Open another PS window and copy and paste one line to get the number of OU’s in your environment and note the settings.

# You can easily get your current OU count with simple one liner

# Getting OU count

(Get-OrganizationalUnit).count

  • Close web config
  • From PowerShell Type

Restart-WebAppPool MSExchangeECPAppPool

  • Perform same task on Each Exchange 2016 Server listed below

Verification

  • Open web browser and type following URL press enter, replace the server name with proper server name that is applicable for your environment

https://EX101/ecp/default.aspx

  • Provide your credentials
  • Click Recipients
  • Click New, User Mailbox
  • Select new user
  • Click Browse
  • Make sure Under “Select an Organizational Unit” Section populates the OU Structure

clip_image002

clip_image004

clip_image006

  • You will be able to see the OU’s
  • PS scripts to

# Connect Remote Exchange 2016 Server, Specify Server to connect.

# Change the server FQDN with server name you have.

Function Connect_E16 {

param(

[Parameter( Mandatory=$false)]

[string]$srv ="EXC01.smtp25.org"

)

$session = New-PSSession -ConfigurationName Microsoft.Exchange `

-ConnectionUri http://$srv/PowerShell/ `

-Authentication Kerberos

Import-PSSession $session -AllowClobber

}

Clear-host

write-host $null

Write-host "_Connecting Exchange 2016 Servers"

$Connect_E16

# Re-start MSExcangeECPAppPool Service on each Exchange Server

# (1)_.Exchange 2016 Array

foreach ($Server in $Servers)

{

$Servers = (Get-MailboxServer | ? {$_.AdminDisplayVersion -Match "^Version 15" }).name

Write-host "_Processing $Server"

Invoke-Command -ComputerName $server{

Write-host "()_Re-Starting MSExchangeECPAppPool Service "

Restart-WebAppPool MSExchangeECPAppPool

Write-host "_()Done" -f yellow

Write-host $Null

}}

# Check Server Health

<#

.NOTES

#=============================================

# Script : Health_Check_Required_Services.ps1

# Created : ISE 3.0

# Author(s) : casey.dedeal

# Date : 08/09/2017 09:23:23

# Org : ETC Solutions

# File Name :

# Comments :

# Assumptions :

#

#==============================================

SYNOPSIS :

DESCRIPTION :

Acknowledgements :

Limitations :

Known issues :

.EXAMPLE

.\Health_Check_Required_Services.ps1 .ps1

Description

———–

Runs the script to perform health check on Exchange 2016 Servers

#>

clear-host

write-host $null

#(a)_.Re-start MSExchangeECPAppPool Service On all Exchange Servers

$Servers = (Get-MailboxServer | ? {$_.AdminDisplayVersion -Match "^Version 15" }).name

#(b)_.Foreloop

$Foreloop = foreach ($Server in $Servers)

{

Write-host "_Checking $Server Health" -f yellow

Test-ServiceHealth | select Role,RequiredServicesRunning,ServicesRunning,ServicesNotRunning

}

#Out-Grid Results

$Foreloop | Out-GridView

Make backup for Web.Config File

<#

.NOTES

#=============================================

# Script : Copy_Web_Config_V1.ps1

# Created : ISE 3.0

# Author(s) : casey.dedeal

# Date : 08/09/2017 09:31:30

# Org : ETC Solutions

# File Name :

# Comments :

# Assumptions :

#

#==============================================

SYNOPSIS :

DESCRIPTION :

Acknowledgements :

Limitations :

Known issues :

.EXAMPLE

.\Get-Sample.ps1

Description

———–

Runs the script to make copy of Web Config file

Specify Exchange 2016 Server Name

After each RU install you need to put the file back

#>

#(a)_.Variables

$user = $env:UserName

$dom = $env:UserDomain

$comp = $env:ComputerName

$date = get-date -Format yyyy-mm-dd

#(b)_.Source & Dest

$Source = "\\EXC01\d$\Program Files\Microsoft\Exchange Server\V15\ClientAccess\ecp\web.config"

$Dest = "C:\users\$user\Desktop\"

$file = "Web_Config_backup"

$Folder = $dest + $file + "_" + $date

$collec = $Source

write-host $null

write-host "——–$dom———-"

write-host "$user"

write-host "$comp"

Write-host "Copying Exchange 2016 Short-cuts" -f yellow

write-host "————————-"

#(c)_. Running foreach

foreach ($item in $collec)

{

If (Test-Path $source){

Write-host -fore yellow "Located $file "

New-Item -ItemType directory -Path $Folder

Copy-Item -Recurse $item -destination $Folder -Force

}Else{

write-host -fore red "Source File cannot be located"

write-host -fore yellow " Script Will Stop in 5 seconds"

Start-Sleep -Seconds 5

break

}}

Oz Casey, Dedeal
Systems Engineer
http://smtp25.blogspot.com/ (Blog)
https://telnet25.wordpress.com/ (Blog)
https://twitter.com/Message_Talk (Twitter)

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