ADFS Test Page Error
KB ID 0001545 Problem I was setting up ADFS in Server 2019 today, and once I have all the basics setup, I like to got to, https://{server-fqdn}/adfs/ls/IdpInitiatedSignon to test, but this happened; The resource you are trying to access is not available. Contact your administrator for more information. Error details .Activity ID: 3c53140c-cff3-4b59-0900-0080010000d4 .Error details: MSIS7012: An error occurred while processing the...
Office 365: Stop One User Sending Attachments
KB ID 0001544 Problem If you have one, (or more) users and you want to BLOCK those users from sending ANY email attachments, here’s how to do it; Solution Log into your Office 365 tenancy with administrative access > Admin > Admin Centers > Exchange Admin > Mail Flow > Rules > Add > Filter Message By Size. Name: Give it a sensible name. Apply This Rule If: The message size is greater than or equal to = 1.00...
Cant Copy a Group Policy Object
KB ID 0001543 Problem Was asked this this morning, why couldn’t someone ‘Copy’ a Group Policy Object (GPO)? Solution At first I was confused, (I made the same mistake they had), look at what I’m trying to copy? It’s not a Group Policy Object, its a ‘Link’ to a GPO. (Note: There’s a shortcut arrow!’) Locate the actual GPO and you can copy it! Related Articles, References, Credits,...
Windows Adding Firewall Rules With PowerShell
KB ID 0001538 Problem There was a question on Experts Exchange this morning, the asker wanted to be able to add a ‘Trusted’ network range to their Windows Server Firewall settings as a ‘allow all ports’ rule. Solution You can of course add this manually in the GUI, normally I’d simply Add a Firewall Rule with a Group Policy. but the problem with that is, that’s fine if you want to open a particular...
You Have Exceeded the Maximum Number of Computer Accounts
KB ID 0001536 Problem A few weeks ago, this was asked in a forum, and while I knew what the problem was, I’d never seen it myself. So I recreated the problem on the test network to look at why it happened, and how to fix / get around the problem. The following error occurred attempting to join the domain {domain-name} You computer could not be joined to the domain, You have exceeded the maximum number of computer accounts you...
Sysprep Was Unable to Validate
KB ID 0001535 Problem While building a new Windows 10 machine to be used as a template, I ran Sysprep to generalise the installation, and got this; Sysprep was not able to validate your Windows Installation. Review the log file at %WINDIR%\System32\Sysprep\Panther\setupact.log for details. After resolving the issue, use Sysprep to validate yout Installation again. Solution What I did was Google the error, instead of looking at the log...
Exchange: Create a PFX Certificate and Import a Private Key
KB ID 0001528 Problem On my test network I have an Exchange server (Exchange 2016). As it’s publicly available and connected to Office 365 it needs a digital certificate. Because its my test network, I don’t want to spend a fortune on a certificates, so I buy the cheapest one I can find. I replaced it last week with a 2 year certificate for about $5.00. When the certificate came I had certificate-name.crt, and a CA bundle,...
Exchange: Can’t Delete a Database
KB ID 0001414 Problem Every iteration of Exchange comes up with some new system/hidden mailbox type that stops me deleting mailbox databases! This mailbox database contains one or more mailboxes, mailbox plans, archive mailboxes, public folder mailboxes or arbitration mailboxes, Audit mailboxes. To get a list of all mailboxes in this database, run the command Get-Mailbox -Database <Database ID>. To get a list of all mailbox...
Windows: Deploy and Configure DNSSEC
KB ID 0001524 Problem Like many protocols and solutions, DNS was designed in a time when we all trusted each other, and a ‘hacker’ was some sort of farm equipment. To ensure when you get a response form a DNS server it is coming from where you expect it to, and you can trust it. We use DNSSEC. Basically it signs the DNS record with a digital cypher. The client can then validate the DNS record when it receives it and it...
Veeam Restore Error: Copying Data from Deduplicated Volumes
KB ID 0001521 Problem If you attempt to restore items from a backup of a server where the data was stored on a deduplicated volume, you may see the following error; Copying data from deduplicated volumes requires that the console is installed on Windows Server 2012 R2 or later with the data duplication feature enabled. Restoring files from deduplicated volumes requires that the mount server associated with the source backup...