General Prerequisites

The following chapters list the minimum requirements for any LUCS installation as well as necessary Windows components that need to be installed in preparation prior to any LUCS components.
These prerequisites apply for both an upgrade and a first-time installation of LUCS. Please refer to the specific sections of our Knowledgebase for detailed instructions.

Compatibility statement

All tested compatibility (e.g. for Operating Systems, SfB, SQL Server) is documented in the LUCS prerequisites / preconditions chapters . Other combinations may work, but are not tested.

Server Requirements

The LUCS system can be installed on a virtual system. Supported virtualization platforms are VMware ESX, Citrix XenServer and Microsoft Hyper-V.

Please note, it is not supported to perform checkpoints/snapshots or Live Migrations while the LUCS Server is running.
Please see the recommended minimum specifications table below (when running LUCS Server on the supported platforms):

CPU	4 dedicated cores Intel Xeon 2.4 GHz or higher with Hyperthreading
Memory	Fixed 16 GB
Hard disk	Fixed 80 GB or more
Network	Max. one Ethernet with Gigabit or higher speed NIC Teaming is supported

Server Operating System

The LUCS system requires a Windows Server operating system. We recommend installing the latest security updates from Microsoft prior to installing LUCS.

LUCS only supports the operating systems listed in the table below.

Operating System	Windows Server 2012 R2 Windows Server 2016 Windows Server 2019* _{*When using newer .NET versions than recommended below, please read Microsoft's article on dotNET Version Compatibility}
SfB Requirements	SfB 2019 Front-End (Lync 2010 / 2013 and SfB 2015 are supported) Windows PowerShell 3.0 or higher .NET Framework Windows Identity Foundation 3.5( → https://technet.microsoft.com/en-us/library/dn951388.aspx )
.NET	.NET Framework 4.7.2 for Skype for Business Server 2015 CU 5 or later releases .NET Framework 4.7.2 or 4.8 for Skype for Business Server 2019 RTM SMD - SIP Message Dispatcher builds can be made available for: .NET Framework 4.5 .NET Framework 4.5.2
Windows Features	A full list can be found in PowerShell commands (see below). The following are the top mentions: .NET Framework Features Web Server (IIS) Telnet Client Desktop Experience
Editor	Windows Editor or Notepad++ (http://notepad-plus-plus.org/download/)
ISO Binaries	Access to Lync Server 2013 / SfB Server 2015 / SfB Server 2019 ISO Binaries

Windows OS / SfB Server Compatibility

Note: The following requirement details are provided by Microsoft and thus independent from the LUCS release!

Windows Server Version →

SfB Version ↓

Windows Server
2008 R2

Windows Server
2012 R2

Windows Server
2016

Windows Server
2019

SQL Server

Operating System	Windows Server 2012 R2 Windows Server 2016
MS SQL Server	SQL Server 2014 SQL Server 2016 SQL Server 2017 SQL Server 2019
Collation	Latin1_General_CI_AS
Protocols	Named Pipes / TCP/IP enabled
Database-Encryption	Not supported (untested)
Database-Compression	Not supported (untested)
SqlServer Authentication	MIXED mode or Windows authentication
Memory Limit	Configuration of Memory-Limit is recommended.
Instance	Luware recommends having a dedicated instance for the Luware products. The instance can be shared, but under no circumstances with Skype for Business backend.

Reporting Services

If LUCS SSRS Reporting is used then the SQL Reporting Services needs to be installed.

Required Powershell Commands

In some cases your IT policy or access rights might restrict the use of Powershell commands. Here is a list of required commands used during installation and setup:

Required Lync Powershell Commands

- Get-CsTrustedApplicationEndpoint
- Set-CsTrustedApplicationEndpoint
- Remove-CsTrustedApplicationEndpoint
- New-CsTrustedApplicationEndpoint
- Grant-CsVoicePolicy
- Get-CsVoicePolicy
- Get-CsVoiceRoute
- Get-CsPool
- Get-CsServerVersion
- Grant-CsConferencingPolicy
- New-CsConferencingPolicy
- Get-CsConferencingPolicy
- Set-CsConferencingPolicy
- Remove-CsConferencingPolicy
- Get-CsExternalAccessPolicy
- Grant-CsExternalAccessPolicy

POWERSHELL

Required Active Directory Powershell Commands

- Get-ADObject
- Set-ADObject

POWERSHELL

Required Windows Features

These Windows features are required on every machine (instance) acting as LUCS Server. PowerShell can be used to quickly check and install all Windows features required for LUCS.

Set ExecutionPolicy to "RemoteSigned"

The following PowerShell sessions must be started with Administrator rights on each LUCS Server machine.

To execute Lync/SfB PowerShell commands, the execution Policy must be set to "RemoteSigned". This setting must be run on each machine where you are planning to install Luware products and their required Windows feature prerequisites.

Set-ExecutionPolicy RemoteSigned -Force

POWERSHELL

→ No error must occur when executing this command.

The following Powershell script will check and install all necessary Windows features.

If errors occur, try to execute the script again, as download from Microsoft and back-to-back installation may fail.

Please read before executing the Windows Features Powershell Script

This script installs .NET Framework 4.6. Depending on your Operating System and LUCS version to be installed it might not be necessary to do so as a more current .NET version is already present.

Please refer to your LUCS .NET compatibility statements in the "Prerequisites" chapter.
Install any required .NET versions manually and install other dependencies using the script.
Also refer to the related Microsoft source on .NET version dependencies: https://docs.microsoft.com/en-us/dotnet/framework/migration-guide/versions-and-dependencies

PowerShell Script: Windows Features Installation

Import-Module ServerManager
[System.Collections.ArrayList]$features = @(
"NET-Framework-Features",
"RSAT-ADDS",
"NET-Framework-Core",
"NET-Framework-45-Features",
"NET-Framework-45-Core",
"NET-Framework-45-ASPNET",
"NET-WCF-Services45",
"NET-WCF-HTTP-Activation45",
"NET-WCF-Pipe-Activation45",
"NET-WCF-TCP-Activation45",
"NET-WCF-TCP-PortSharing45",
"Web-Server",
"Web-WebServer",
"Web-Common-Http",
"Web-Default-Doc",
"Web-Dir-Browsing",
"Web-Http-Errors",
"Web-Static-Content",
"Web-Http-Redirect",
"Web-Health",
"Web-Http-Logging",
"Web-Log-Libraries",
"Web-Request-Monitor",
"Web-Http-Tracing",
"Web-Performance",
"Web-Stat-Compression",
"Web-Dyn-Compression",
"Web-Security",
"Web-Filtering",
"Web-Basic-Auth",
"Web-Client-Auth",
"Web-Digest-Auth",
"Web-Cert-Auth",
"Web-IP-Security",
"Web-Url-Auth",
"Web-Windows-Auth",
"Web-App-Dev",
"Web-AppInit",
"Web-Net-Ext",
"Web-Net-Ext45",
"Web-Asp-Net",
"Web-Asp-Net45",
"Web-ISAPI-Ext",
"Web-ISAPI-Filter",
"Web-WebSockets",
"Web-WHC",
"Web-Mgmt-Tools",
"Web-Mgmt-Console",
"Web-Scripting-Tools",
"Telnet-Client",
"Desktop-Experience",
"Windows-Identity-Foundation")
$winversion = [environment]::OSVersion.Version
If($winversion.Major -ge 10){
    $features.Remove("Desktop-Experience")
}
foreach ($f in $features) {Install-Windowsfeature $f}

POWERSHELL

Network Requirements

The local network / firewall policy needs to be updated to allow passthrough for LUCS Ports. Refer to the following installation chapters

Architecture - for an overview of components (services) that run on the target machines
Installation Environment Requirements for Network Ports and AV Exclusion Lists
Environment Preparation - For necesary DNS, AD entries, Trusted Applications, SRV records

Client-Side Requirements

Agent Assistant runs as tray-application with no further administration needed past initial configuration.
Web-Configurator supports the following browsers:
- Microsoft Edge (latest version).
- Google Chrome (latest version).

The required screen resolution for Web-Configurator is Full HD (1920x1080) and higher. On lower screen resolution horizontal/vertical scrolls will be added in the browser.