Category Archives: Microsoft Teams

3- Migrate Users from Skype for Business 2015 to Teams

Hybrid Integration

In my last post about Skype for Business / Office 365 Skype for Business Online/Teams migration article I discussed the steps of how to create a hybrid environment between Skype for Business on-premises and went through the troubleshooting of each issue I have been through. In this article I am going to discuss the migration of users from on-premises to the cloud through UI and PowerShell.

Migrating users

This article will assume that you are planning to migrate users from Skype for Business Frontend 2015 Server and that you already have a hybrid configuration in place. If so then you’re going to fulfill the following prerequisites:

To check the currently installed PowerShell run the following cmdlet

$PSVersionTable

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After you Download and install PowerShell 5.1 you might need to restart the server. In which case the PowerShell will show that it is updated to the required version.

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After Installing the Skype Online Connector Module, We will be able to connect right after launching PowerShell

To do so type:

Import-Module SkypeOnlineConnector

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Connecting to Office 365 (Teams Online or Skype for Business Online)

The process of connecting to Office 365 Online PowerShell sounds easy but with MFA enforced in your environment you’ll have a nightmare mix of errors when you try so.

I have came through a lot of errors trying to force the use of PowerShell with MFA user authentication but eventually came to realize that Microsoft still does not support MFA for some cmdlets like Move-CsUser for instance.

So In short, to connect you’ll need to have a global or Teams admin user with MFA disabled to do so.

To create a new Skype Online Session enter:

– Make sure you start the regular PowerShell as admin and not Skype for Business Management Shell.

If you run these commands from SfB Management Shell you’ll get an error

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So first, We will import the Skype Online connector Module

Import-Module SkypeOnlineConnector

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Then get the OverRidePowershell URI using the command:

Get-CsOnlinePowerShellEndPoint

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Next, We will connect and authenticate to our tenant using the following cmdlet

$sfbsess = New-CsOnlineSession -Username User@domain.onmicrosoft.com -OverRidePowerShellUri https://admin4a.online.lync.com/OcsPowershellOAuth –Verbose

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Moving Users to Teams

To Move users to Office 365, You need to first provide credentials of the User with MFA disabled and then use the command Move-CsUser

An Example:

$Creds = Get-Credential

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Moving User

Move-CsUser –Identity user@domain.com –target “sipfed.online.lync.com” –hostedMigrationOverRideUri https://admin4a.online.lync.com/HostedMigration/hostedmigrationservice.svc –ProxyPool “YourFEPool.Domain.local” –Credential $Creds

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Let’s check the status of the migrated user, The hosting provider attribute is what we care about as it tells us where the user is homed at.

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Checking the user from Teams Portal

Users seems to be licensed, online and can now login using the Microsoft Teams app.

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Bulk Enable Users and assign Tel URI numbers to them

In case you have a big number of users that you want to enable them online

# Please provide your O365 admin credential

$creds = Get-Credential

-PSSession (New-CsOnlineSession $cred) -AllowClobber

$csv = Import-csv “C:\Users\Mohammed\users.csv”

ForEach ($user in $csv) {

Write-host now enabling $user.alias

Move-CsUser –Identity $user.alias –target “sipfed.online.lync.com” –hostedMigrationOverRideUri https://admin4a.online.lync.com/HostedMigration/hostedmigrationservice.svc –ProxyPool “YourFEPool.Domain.local” –Credential $creds

}

The CSV File will look like this

Alias

user@domain.com

user2@domain.com

Errors you might face

Error 1:

When you have your on-premises user enabled for dialin you will probably get the following error if you try to migrate them to Skype for Business online or teams.

Move-Csuser :: HostedMisrat ion fault: Error=(511), Description=(The user could not be moved because he or she is enabled for dial-in conferencing on-premises, but has not been an assigned an Audio Conferencing license in Office 365. Users must be licensed before they can be moved to Teams or Skype for Business Online.)

If you are sure do want to use migrate this user without an Audio Conferencing license, specify the

“BypassAudioConferencingCheck” switch. ) At line: 1 char: 1

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The Solution is to either provide an audio conferencing license  or as it is showing in the error itself as it says use the switch -BypassAudioConferencingCheck to ignore that.

Error 2:

When trying to import the session, I got the following error

the runspace state is not valid for this operation for PowerShell Online.

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Solution: To overcome this problem you’ll need to use the overridePowershellUri Parameter in the New-CsOnlineSession in order to connect to Skype online powershell.

To get your tenant’s PowerShell URI use the cmdlet Get-CsOnlinePowerShellEndPoint

What you need to use is the AbsoluteUri

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Error 3:

When you try to import the SkypeOnlineConnector module and then run the New-CsOnlineSession cmdlet from Skype for Business Management Shell you’ll get the following error after authenticating.

Sign in

Sorry, but we’re having trouble signing you in.

AADSTS50011: The reply URL specified in the request does not match the reply URLs configured for the application: ‘7716031e-6f8b-45a4-b82b-922b1af0fbb4’. More details: Reply address did not match because of case sensitivity.

Troubleshooting details

If you contact your administrator, send this info to them.
Copy info to clipboard  
  
Request Id:  f0f97265-4669-4e4f-bcf7-609469e92f00
 
Correlation Id:  829c8a2b-f697-416f-bfa6-4a794a229a13

Timestamp:  2021-01-10T23:00:10Z
 
Message:  AADSTS50011: The reply URL specified in the request does not match the reply URLs configured for the application: ‘7716031e-6f8b-45a4-b82b-922b1af0fbb4’. More details: Reply address did not match because of case sensitivity.
     

Advanced diagnostics: Disable
  
If you plan on getting support for an issue, turn this on and try to reproduce the error. This will collect additional information that will help troubleshoot the issue.

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Solution:

Run the cmdlets from Windows PowerShell as admin not Skype for Business Management shell.

References:

https://docs.microsoft.com/en-us/microsoftteams/upgrade-to-teams-on-prem-overview

https://social.technet.microsoft.com/wiki/contents/articles/34339.skype-for-business-online-enable-your-tenant-for-modern-authentication.aspx

https://docs.microsoft.com/en-us/skypeforbusiness/hybrid/move-users-from-on-premises-to-skype-for-business-online

https://docs.microsoft.com/en-us/microsoftteams/teams-powershell-install

https://docs.microsoft.com/en-us/skypeforbusiness/troubleshoot/hybrid-move-sfb-online/move-csuser-hostedmigration-fault-507

error when Installing Nuget module for Microsoft Teams integration

Story

I got a client requesting to integrate Skype for Business 2015 with Microsoft Teams. Skype for Business 2015 is installed on Windows Server 2012 R2 which has PowerShell 4.0

I already installed PowerShell 5.1 and restarted the server in question.

When I tried to install the Microsoft Teams PowerShell Module to integrate Skype for Business with Teams I got the following error:

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Error

PS C:\Users\Admin> Install-Module MicrosoftTeams

NuGet provider is required to continue
PowerShellGet requires NuGet provider version ‘2.8.5.201’ or newer to interact with NuGet-based repositories. The NuGet
  provider must be available in ‘C:\Program Files\PackageManagement\ProviderAssemblies’ or
‘C:\Users\Admin\AppData\Local\PackageManagement\ProviderAssemblies’
. You can also install the
NuGet provider by running ‘Install-PackageProvider -Name NuGet -MinimumVersion 2.8.5.201 -Force’. Do you want
PowerShellGet to install and import the NuGet provider now?
[Y] Yes  [N] No  [S] Suspend  [?] Help (default is “Y”): y
WARNING: Unable to download from URI ‘https://go.microsoft.com/fwlink/?LinkID=627338&clcid=0x409′ to ”.
WARNING: Unable to download the list of available providers. Check your internet connection.
PackageManagement\Install-PackageProvider : No match was found for the specified search criteria for the provider
‘NuGet’. The package provider requires ‘PackageManagement’ and ‘Provider’ tags. Please check if the specified package
has the tags.
At C:\Program Files\WindowsPowerShell\Modules\PowerShellGet\1.0.0.1\PSModule.psm1:7405 char:21
+ …     $null = PackageManagement\Install-PackageProvider -Name $script:N …
+   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     + CategoryInfo          : InvalidArgument: (Microsoft.Power…PackageProvider:InstallPackageProvider) [Install-Pac
    kageProvider], Exception
     + FullyQualifiedErrorId : NoMatchFoundForProvider,Microsoft.PowerShell.PackageManagement.Cmdlets.InstallPackagePro
    vider

PackageManagement\Import-PackageProvider : No match was found for the specified search criteria and provider name
‘NuGet’. Try ‘Get-PackageProvider -ListAvailable’ to see if the provider exists on the system.
At C:\Program Files\WindowsPowerShell\Modules\PowerShellGet\1.0.0.1\PSModule.psm1:7411 char:21
+ …     $null = PackageManagement\Import-PackageProvider -Name $script:Nu …
+   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     + CategoryInfo          : InvalidData: (NuGet:String) [Import-PackageProvider], Exception
     + FullyQualifiedErrorId : NoMatchFoundForCriteria,Microsoft.PowerShell.PackageManagement.Cmdlets.ImportPackageProv
    ider

More Details:

Although I have PowerShell 5.1 module installed but still it seems problems wont go away. It’s part of Microsoft’s main requirement to have Windows PowerShell 5.1 and to import the Microsoft Teams Module for an easy installation and integration with Teams as it leverages the Module MicrosoftTeams to make things easy.

When looking at the details of the error, it seems as if PowerShell is trying to connect to a particular link to download and install the NuGet Provider which is part of installing the MicrosoftTeams Module.

The error below can be noticed to be the cause.

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Resolution:

After doing some digging it turns out that since April 2020 Microsoft has disabled the use of TLS Version 1.0 and 1.1 so people who are working on old Windows Server edition or any application servers that utilize these protocols will now have to force PowerShell or any other app to use the TLS 1.2 Version.

In order to fix this, You will need to run the following Script on your PowerShell as an Admin

[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12

See the announcement here:

https://docs.microsoft.com/en-us/powershell/scripting/gallery/installing-psget?view=powershell-7.1

After running this script, I was able to install NuGet and run the installation of MicrosoftTeams PowerShell Module

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Hope this helps

2- SKYPE FOR BUSINESS EDGE SERVER DEPLOYMENT AND HYBRID INTEGRATION WITH SKYPE FOR BUSINESS ONLINE

Skype for Business Edge server deployment and Hybrid integration with Skype for Business Online

In the last Skype for Business post I have upgraded my Lync 2013 to Skype for Business (Click here to go to that post). in this article I am going to install Edge server for Skype for Business to the same Lync Environment where I have done the Upgrade to Skype for Business.

Configuring Edge Server

Setup NETBIOS

In order to configure Skype 4 Business Edge, we’ll have to change the Netbios to give it the name of our Domain but we won’t join it to the domain.

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Setup NICs

Edge Server must have 2 NICs, one Local NIC will point out to the Front end server but must not have Default gateway so traffic can only flow through the DMZ out to the internet and back in. but still it must be able to ping to the FE from Edge and vice versa.

The DMZ network could have a single DMZ address (Public Address to be pointing to) or three DMZ addresses for public IP addresses with standard https ports.

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Configure Hostnames

Edit the Edge server’s host file to include Lync FE and DC’s IP addresses and Hostname

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Install Prerequisites

  • Microsoft .Net Framework 3.5
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Now I will go back to Skype for Business FE server, I’ll launch the topology builder and add new Edge server

I will add the first Edge pool which contains of a single Edge server

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Next, you will have to choose if you want to enable federation with partners or other service providers …e.g. (Google)

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I am intending to use a single Public IP address with a different ports (nonstandard) since this is a lab. For production use it’s recommended to have 3 public IP addresses, One is for Access Edge, AV and WebConf services.

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Next I will choose the last option which says that the Edge pool is translated by NAT. I will configure my firewall to NAT ports to the Edge’s DMZ IP addresses from the Public so I am choosing this option.

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This is the FQDN’s the default configuration .. It’ll only use a single FQDN for all services if you’re going to use a single public IP address with a different ports.

IMPORTANT NOTE

When you use a single IP address with a different ports, the Access Edge port will normally change to 5061 (Not 443 like in the _sip._tls.domain.com) SRV record which will cause failure if you forgot to change this port to match the one in your Topology’s Access Edge settings.

Next I’ll have to enter my Edge server’s Local IP address.

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Next I will be asked to enter the DMZ’s IP address which the wizard calls (Private External IP address)

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Here I am going to place the NAT IP address which is my Public IP address.

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Next I’ll have to choose which Lync FE pool will be used as the next hop to the Edge pool. In this case I’ll be choosing my main pool since the second is only for resilience purpose.

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Then I’ll associate the mediation pool for Edge server for external media traffic. I can assign both in this case.

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Now I’ll click on Finish and right click on the Site name’s properties to enable the SIP federation and XMPP federation then Publish the topology.

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Now I will setup Azure Active Directory Sync on my DC server in order to sync the required users for the test purpose.

My domain is adeo.local so I want to change the UPN for users to match the synced domain. (Adeo-office365.ga) and moh10ly.com

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Installing Azure Active Directory Sync

Now I will install the prerequisites which consist of the following

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Net framework 4.5.2 is required for AADS but it’s already installed on my server

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Next I will install Microsoft Online Service Sign in assistant

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Next I will install Azure AD Module

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Finally Azure AD Sync

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Before moving forward, I’ll have to go to the Office 365 portal and activate DirSync

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Then use a global admin credentials from O365.

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Adding the forest using an enterprise admin user account

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Due to the fact that my domain adeo-office365.ga’s public dns host doesn’t have SRV configuration because it’s hosted by the famous free domain service (Freenom) so I’ll have to add my original domain moh10ly.com as Lync (S4B) requires SRV records to point to the on-premises lync.

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I will only sync one OU, so I will untick the Sync now box and click on Finish

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I will go to the following path

“C:\Program Files\Microsoft Azure AD Sync\UIShell” and create a shortcut for the GUI application of AADS on the desktop

“C:\Program Files\Microsoft Azure AD Sync\UIShell\miisclient.exe”

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To get this GUI app to work, you will have to sign out of your account and sign back in as your username will be added to the local administrators and have the authority to open it

Log off, log back in

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Next I will go to the connectors tab and double click on the ADDS connector (Adeo.local)

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I will go to the Configure Directory Partitions and under Credentials I’ll choose “Alternate credentials for this directory partition” then enter my on-premises AD Enterprise admin credentials

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I’ll click on Containers

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I’ll untick the DC=Adeo,Dc=Local box and only choose Dirsync OU then click OK and apply

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Before I start syncing my AD , I will go to Skype for Business Server and add my domain moh10ly.com as a SIP domain

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Next I am going to change the FQDN of the SIP access edge for public domain to moh10ly.com and the default port for the Access Edge to 443 and publish the topology

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I needed to finally check if all my FE servers are replicating. So then I can move to Edge server to install Lync components

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On the Edge server, I’ll use ISO for Skype 4 business to install the setup

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First thing I’ll install the local Configuration Store

I’ll click on Run and then I’ll be asked to import the configuration file which I’ll must export from Lync FE (Skype 4 b FE) server

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In this case, I’ll go to Lync FE and open Lync Management shell and enter the following Cmdlet

Export-CsConfiguration -FileName c:\top.zip

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This cmdlet will export a file to the root C drive . I’ll copy this file to the edge server.

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I’ll click next to continue, this should start installing the local store

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Next I’ll request a certificate for Internal NIC For edge server

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Configure Certificate

I’ll take the CSR (Certificate sign request) code and get a certificate from my local CA

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I’ll open MMC and add Certificates console and import the PKCS certificate

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After importing the certificate I’ll assign it to the internal NIC by clicking on Assign to the Edge Internal

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Once we assign the certfiicate to the internal edge. The replication service for Edge and FE will start working

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Now I’ll import my Public Certificate to Edge Server’s DMZ NIC

I already imported my public certificate, now I’ll go to the S4B wizard and assign it there

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Unlike IN lync 2013 when you Click on Start service in the Wizard all services start on their own but on Skype for business you ‘ll have to start the services manually by yourself.

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So Instead I used the service console to start the services.

Now I’ll go back to the FE And enable remote connectivity to Skype for Business from outside and make sure that replication works fine by checking the Topology or from cmdlet

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After the replication is finished, I was able to login remotely with my Skype for Business on-premises accounts.

Setting up Hybrid integration with Skype online for Business (O365)

https://technet.microsoft.com/en-us/library/jj205126.aspx

https://technet.microsoft.com/en-us/library/jj204669.aspx

In order to allow Hybrid environment to function properly, we’ll have to federate our Skype for Business on-premises’s Edge server as Microsoft says below

Federation allows users in your on-premises deployment to communicate with Office 365 users in your organization. To configure federation, run the following cmdlets in the Skype for Business Server Management Shell:

From <https://technet.microsoft.com/en-us/library/jj205126.aspx>

On the front end server, we’ll run the following CMDlet

Set-CSAccessEdgeConfiguration -AllowOutsideUsers 1 -AllowFederatedUsers 1 -UseDnsSrvRouting -EnablePartnerDiscovery $true

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Next cmdlet will create a new public federated provider for skype for business online.. However it already exists by default as in the below snapshot but just to avoid any issues I will delete the default provider from control panel and recreate it again. 

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I’ll delete the hosted provider “Skype for Business Online”

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I’ll try the cmdlet again after deleting the provider ..

New-CSHostingProvider -Identity SkypeforBusinessOnline -ProxyFqdn “sipfed.online.lync.com” -Enabled $true -EnabledSharedAddressSpace $true -HostsOCSUsers $true -VerificationLevel UseSourceVerification -IsLocal $false -AutodiscoverUrl https://webdir.online.lync.com/Autodiscover/AutodiscoverService.svc/root

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Since it worked already, I will go back to the control panel and make sure it is enabled

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Next is : Configure your Skype for Business Online tenant for a shared SIP address space

Note:

To configure a shared SIP address space, establish a remote PowerShell session with Skype for Business Online, and then run the following cmdlet:

We’ll have to download skype for business online powershell

https://onedrive.live.com/redir?resid=82488EABA4ACDB15!38849&authkey=!AKW6Ln4Rkn6QuUI&ithint=file%2cexe

After launching the PowerShell module as an administrator I’ll run the following cmdlet

Import-Module SkypeOnlineConnector

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Now I’ll connect to my Office 365 tenant

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$cred = Get-Credential

$CSSession = New-CsOnlineSession -Credential $cred

Import-PSSession $CSSession -AllowClobber

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Now I’ll configure the shared sip address

Set-CsTenantFederationConfiguration -SharedSipAddressSpace $true

From <https://technet.microsoft.com/en-us/library/jj205126.aspx>

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To double check my configuration I will see if the SharedSipAddresSpace is enabled or not

Get-CsTenantFederationConfiguration

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To double check that the hybrid configuration is setup properly we can use the Skype for business on-premises Hybrid UI wizard from the Home Menu under “Connection to Skype for Business Online”

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Using the Skype for Business 2015 User interface to setup Hybrid configuration:

After you sign in it does automatically logs you in and configure the three following options

  1. Federation for the Edge server
  2. Federation with Office 365.
  3. Shared SIP address space.
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Now I will configure my DNS Settings as recommended by Microsoft for the Hybrid Integration scenario

DNS Settings

When creating DNS SRV records for hybrid deployments, the records, _sipfederationtls._tcp.<domain> and _sip._tls.<domain>, should point to the on-premises Access Proxy.

From <https://technet.microsoft.com/en-us/library/jj205403.aspx>

  1. Update some DNS records to direct all SIP traffic to Skype for Business on-premises:
  • The lyncdiscover.contoso.com A record to point to the FQDN of the on-premises reverse proxy server.
  • Update the _sip._tls.contoso.com SRV record to resolve to the public IP or VIP address of the Access Edge service of Skype for Business on-premises.
  • Update the _sipfederationtls._tcp.contoso.com SRV record to resolve to the public IP or VIP address of the Access Edge service of Skype for Business on-premises.
  • If your organization uses split DNS (sometimes called “split-brain DNS”), make sure that users resolving names through the internal DNS zone are directed to the Front End Pool.

From <https://support.office.com/en-us/article/Configure-Skype-for-Business-Server-2015-Hybrid-b06ee805-4349-4519-82fb-b06ed57c0bd0>

According to Microsoft’s configuration of the Public DNS, you will have to configure only the SRV records to point to your edge server however, running a simple wireshark on your Skype for business client machine you can notice the following:

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Microsoft Lync / Skype client first requires the Lyncdiscover / Lyncdiscoverinternal record in order to see where the user is located… then gets redirected to webdir.online.lync.com which is the Cname value to the Lyncdiscover Cname in the public DNS and tries to login the user through Login.microsoftonline.com then finds no user there and logs in using the SRV eventually in the end as in the below snapshot which I’ve used Wireshark for to monitor the DNS traffic that the Lync Client requests upon login request.

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NOTE:

What have me confused here is that Microsoft says only SRV records must be pointing to your On-premises Lync/Skype for Business Edge server.. So you must enter something else other than SIP.domain.com (Which in normal cases might be the common name of your Edge certificate) for the value of the SRV Record since the SIP.domain.com and Lyncdiscover.domain.com must be pointing to Office 365.

I tried using the Public IP address of my Edge server just to check if my on-premises user will connect without any issue however I did have an issue with the Certificate saying “There was a problem verifying the certificate from the server”.

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Error:

Luckily the Public certificate that I had on my edge server had multiple SANs (Subject Alternative Names) and one of them was WAC.moh10ly.com which I was intending to use for the WAC Server (Office Web Apps Server) and then I created an A record on my public DNS WAC.moh10ly.com that points to my Edge server’s Public IP address…. although the Wac.moh10ly.com is not a common name but it worked and I was able to federate with Office 365 users and was able to move users from on-premises to office 365 and back to on-premises as demonstrated later in the article.

“When creating DNS SRV records for hybrid deployments, the records, _sipfederationtls._tcp.<domain> and _sip._tls.<domain>, should point to the on-premises Access Proxy.”

From <https://support.office.com/en-us/article/Configure-Skype-for-Business-Server-2015-Hybrid-b06ee805-4349-4519-82fb-b06ed57c0bd0>

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Now I have changed all the SRV records to direct to the new A record

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And finally deleted the A sip record and created a new CNAME record that points to sipdir.online.lync.com

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I have already a user synced from my local AD to the cloud (office 365) that’s not enabled for Skype for business on-premises .. Once this user is synced and have been assigned a license it should be directly enabled for Skype for Business Online and I should be able to sign in to it without any issue.

Note:

In order for both users (homed online and On-premises) to see eachother’s presence the synced user must be enabled on the On-premises Server before moved to the cloud or else the presence and M will fail.

Time to test, I was able to sign in to the Online homed user (admin) and now I’ll be adding the on-premises homed user to the list to check the presence, IM ..etc

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Here I added the user admin to my other account Mohammed.hamada and vice versa.

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The Presence appears to be working fine for user homed on-premises as it shows when I changed it to “busy, be right back..etc” on the cloud user’s Client however the Office 365 homed user’s presence takes time to change on the on-premises user’s list and the IM doesn’t seem to work properly as messages sometimes doesn’t go through and fail.

Sending a message from the on-premises User (Mohammed Hamada) to (ADMIN)

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Now sending an IM from Admin to Mohammed Hamada

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To make sure that the issue is not within my on-premises server, I will use a different Skype for Business online account and see if IM work both ways.

This is my other user.. The presence information seems to work properly and now I’ll test the IM

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IM between my On-premises and another user on another Office 365 tenant seems to be working fine back and forth as in the below snapshots so the issue might be related to Office 365 tenant which I am using for this test (could be related to trial version)

I am going to open a case with MS and see why this issue happens since my on-premises work fine with other tenants.

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Now It’s time to move users from and to cloud and on-premises to check how easy, flexible or hard this process is.

I currently have 2 users, one on cloud and one synced and homed online (Office 365)

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In order to move users, you can go to Users tab after the hybrid config is finished and find the user you want to move then click on Actions and chose to move the users to the Skype for Business Online as in the below snapshot

Note:

Before you move the user to Office 365, you must assign license to the user or else the move will fail.

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You can move the user back from Office 365 to your on-premises Skype for Business server with the same process exactly except that you’ll have to choose which pool you need to move the user to.

Checking where the user is hosted from Skype for business Management shell

The Hosting Provider will show you where the user is working from now.

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Hope this has been helpful

References:

https://technet.microsoft.com/en-us/library/jj204967.aspx

https://technet.microsoft.com/en-us/library/jj205403.aspx

https://technet.microsoft.com/en-us/library/jj205126.aspx

https://technet.microsoft.com/en-us/library/jj204669.aspx

https://support.office.com/en-us/article/Configure-Skype-for-Business-Server-2015-Hybrid-b06ee805-4349-4519-82fb-b06ed57c0bd0

https://channel9.msdn.com/Events/Ignite/2015/BRK4129