Can you Use ‘Let’s Encrypt’ on Hybrid Exchange?
KB ID 0001770 Problem A few months ago I wrote an article about getting free exchange certificates with Lets ‘Encrypt’. And that still works peachy, I implemented it on my test Exchange 2019 server (in Hybrid mode) and all appeared well. Some time later, (remember this is my test network so it’s not in production.) I noticed that mail was not getting forwarded from O365 to the on premises Exchange server. I’ve...
Exchange Y2KK Bug
KB ID 0001769 Y2KK Problem Over the last couple of days the Exchange forums have been alight with the Y2KK bug, typically it affects Exchange 2016 and 2019 (though the chatter is, it actually effects any Exchange versions whose update version begins with 22… This is fine below, (it begins with 21..) Add-PSSnapin Microsoft.Forefront.Filtering.Management.Powershell Get-EngineUpdateInformation Y2KK Symptoms Emails No Longer Being...
Exchange ECP HTTP 500 Error
KB ID 0001756 Problem This infuriatingly happens to me a lot! Every time the fix is the same, (but is a little impractical). Essentially you attempt to log in to ECP (Exchange Admin Center), you a prompted for your credentials, then you just get a ‘500 Error”. The website cannot display the page HTTP 500 Most likely causes: •The website is under maintenance. •The website has a programming error. What you can try: ...
FortiGate HTTPS Error
KB ID Article Problem While attempting to connect to a FortiGate firewall (with Firefox over HTTPS) you may see this error; Secure Connection Failed An error occurred during a connection to {x.x.x.x} SSL received a record that exceeded the maximum permissible length error code : SSL_ERROR_RX_RECORD_TOO_LONG The page you are trying to view cannot be shown because the authenticity of the received data could not be verified. Please...
mac OSX: Opening JNLP Files?
KB ID 0001767 Problem I needed to get onto a HPE server’s iLO at work today. I was using Firefox and the .Net extensions no longer work, so I was forced to use Java web start. Annoyingly that opened my Windows 10 VM (that runs in VMware Fusion), then it fell over! So the problem is, I need to be able to ‘RUN’ jnlp file on my MacBook, but there’s no Java application in the applications folder. Opening JNLP Files...