Install RSAT tools

Install the Remote Server Administration Tools Install-WindowsFeature -IncludeAllSubFeature RSAT -WhatIf Install-WindowsFeature -IncludeAllSubFeature RSAT Verify if the Remote Server Administration Tools is already installed. Get-WindowsFeature  -Name rsat Windows 10 Get-WindowsCapability -name …

Update procedure Exchange CU21 & Security update

Download Cumulative Update 21 for Exchange Server 2016 (KB5003611) : https://www.microsoft.com/en-us/download/details.aspx?id=103242 Download Security Update For Exchange Server 2016 CU21 (KB5004779) :https://www.microsoft.com/en-us/download/details.aspx?id=103311 Start by updating Active Directory using the latest CU installation …

Exchange check current version

Via Powershell Via Exchange Management Shell The AdminDisplayVersion value shows the Exchange version in the format : “MajorVersion.ServicePack.CumulativeUpdate/UpdateRollup.MinorVersion” Via webbrowser (if maps is enabled) : https://<serverFQDN>/mapi/emsmdb/ For Office 365 use https://outlook.office.com/mapi/emsmdb/ Now …

Exchange 2016 OWA / ECP issue : ASSERT: HMACProvider.GetCertificates:protectionCertificates.Length

[Owa] An internal server error occurred. The unhandled exception was: Microsoft.Exchange.Diagnostics.ExAssertException: ASSERT: HMACProvider.GetCertificates:protectionCertificates.Length<1 at Microsoft.Exchange.Diagnostics.ExAssert.AssertInternal(String formatString, Object[] parameters) at Microsoft.Exchange.Clients.Common.HmacProvider.GetCertificates() at Microsoft.Exchange.Clients.Common.HmacProvider.GetHmacProvider() at Microsoft.Exchange.Clients.Common.HmacProvider.ComputeHmac(Byte[][] messageArrays) at Microsoft.Exchange.HttpProxy.FbaModule.SetCadataCookies(HttpApplication httpApplication) at Microsoft.Exchange.HttpProxy.FbaFormPostProxyRequestHandler.HandleFbaFormPost(BackEndServer …

Force Active Directory Replication

Force replication via Powershell. This Cmdlets force the replication of the User Account on all the partitions as shown below. To Sync All the DC partitions, like Domain, Global Catalog, …