When attempting to remove permissions from Exchange server mailbox using Exchange Management Shell… Powershell Remove-MailboxPermission -identity…. You get the following error WARNING: Can’t remove the access control entry on the object… because the ACE doesn’t exist on the object. There is abundance of articles on the Internet on to deal with this… mostly confusing and […]
If you are running a Windows Server 2016 standard 180 days evolution copy that you downloaded off Microsoft Website and try to activate the installation with a product key that you purchased for Microsoft Server 2016, you might get an error message saying that it can’t activate, or that you entered a product key that […]
When you try to access SonicWALL SMA (Secure Mobile Appliance) using NetExtender you get “SonicWALL – Can not access the appliance for Security. Please contact administrator” Resolution: Make sure you type the domain correctly in the NetExtender and with the right case. The domain is Case Sensitive. So if your domain on the SMA is configured […]
Can’t remote desktop into a Windows 7 – RDP Run registry editor, regedit, and make sure PortNumber under HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-TCP is 3389 in Decimal
If you have a Microsoft Exchange Server running OWA that failed a PCI vulnerability scan because of the following: <httpCookies httpOnlyCookies=”true” requireSSL=”true”/> Here what we can do to remediate it on the Windows server. Schedule a brief downtime for the Exchange Server while IIS restarts below. Launch IIS on the Exchange server, go to Default Web […]
If you have to comply to recent PCI standards, a PCI scan on your Exchange server might reveal that it’s no longer compliant because TLS 1.0 is still enabled on it and you need to disable TLS 1.0 to pass test. This applies to Exchange 2010, 2013 and 2016. Not sure about 2007… Tried the […]
Setting up Duo Two Factor Authentication with Microsoft Routing and Remote Access (RRAS) Server: We installed the Duo Proxy on a separate server than the Microsoft RRAS server. We couldn’t get it to work on the same server. When we ran it on the same server, we were getting errors like the following: “The connection was […]
After applying one of Jan 2018 Windows updates to windows servers 2012 and could be 2008, scanning to network shares SMB fails from Network printers/copiers, the scan user gets locked out at times. We’ve had issues with different kind of copiers like Canon iR3035, imageRUNNER 6275 and image RUNNER advance iR-ADV4235. One full week of troubleshooting the […]
Exchange Server Mailboxes size report 2010 2013 2016 Create a C:\Temp1 directory. Obtain Mailbox Database name from the Microsoft Exchange Console that would look like “Mailbox Database XXXXXXXXXXX” Using Exchange PowerShell (Run as Admin) , type the following: Get-MailboxStatistics -Database “Mailbox Database XXXXXXXXXXX” | Select DisplayName, ItemCount, TotalItemSize | Sort-Object TotalItemSize -Descending | […]
When trying to install Exchange 2013 Cumulative Update 18 or others, update terminates with the following error: ————— The following error was generated when “$error.Clear(); Install-ExchangeCertificate -services IIS -DomainController $RoleDomainController if ($RoleIsDatacenter -ne $true -And $RoleIsPartnerHosted -ne $true) { Install-AuthCertificate -DomainController $RoleDomainController } ” was run: “System.Security.Cryptography.CryptographicException: The certificate is expired. at Microsoft.Exchange.Configuration.Tasks.Task.ThrowError(Exception exception, ErrorCategory errorCategory, […]