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, […]
How to modify firewall rules remotely command line Windows 7 How to allow Remote Desktop remotely through command line Download psexec https://docs.microsoft.com/en-us/sysinternals/downloads/psexec Extract to al temp place. Make sure you are able to access remote computer NetBIOS name i.e \\RemoteComputerName without getting an error message On your local computer, from command line and from the […]
Windows Server 2008/2012 R2 Virtual Machine VM – Hyper-v Windows update will not download – stuck at 0% downloading. Every time I start windows update it won’t download the updates. Download bar keeps on running and moving but nothing downloads and the percentage stays at 0%. Ran into this issue several times. Go to the Ethernet […]
How to force Windows server 2012 R2 to boot/restart/start into Safe Mode after restart: Go to Command Line, and type: bcdedit /set {default} safeboot minimal Reboot Windows and it will start in Safe Mode To change Windows to boot normal from command line while in safe mode. Go to Command Line, and type: […]
Cisco Wireless Access Points WAP551 and 561 stop broadcasting SSID intermittently, sometimes every day or two. WAP551 is a Cisco Wireless-N Single Radio Selectable-Band Access Point Had to troubleshoot this issue for a customer. We noticed this happening more when WAP radio is configured in 5GHz mode Issue was caused by a new wireless feature […]