Exchange Update Failed
Exchange Update Failed KB ID 0001923 Problem While attempting to install an Exchange CU update, (CU15 for Exchange 2019), I got this error. Error: The following error was generated when “$error.Clear(); # # O15# 2844081 – Create PartnerApplication “Exchange Online” in DC and On-Premise # $exch = [Microsoft.Exchange.Data.Directory.SystemConfiguration.WellknownPartnerApplicationIdentifiers]::Exchange; $exchApp =...
Bulk Creating Users For Your Test Network
Bulk Creating Users KB ID 0000784 Problem Update Jul 2025: Feel free to use this Bulk-Create-AD-Users-Script (Just remeber to change the domain details in the “Global Variables’ Sections to give you 10o0 users, with sensible names addreeses etc. Having a test network, is great for both learning, and testing. I’ve got some major migrations coming up in the next few months, so I’m in the process of running up some new...
Upgrading to Exchange SE
Upgrading to Exchange SE KB ID 0001922 Problem With ‘On-Premises” version of Exchange support coming to an end, anyone wanting to retain a ‘non cloud’ versions of Exchange should be upgrading to Exchange SE. Exchange Version Mainstream End Date Extended End Date Support Status Exchange Server 2013 April 10, 2018 April 11, 2023 End of support Exchange Server 2016 October 13, 2020 October 14, 2025 In extended...
Microsoft Exchange Server Build Numbers
Exchange Server Build Numbers KB ID 0000344 Problem To find out what service pack and rollups have been applied to Microsoft Exchange you need to locate its “Build Number”. 2000/2003 2007 2010 Warning: After SP3 the build number does not update. To find your build number in Exchange 2010 (after SP3,) use the following command; exsetup | %{$_Fileversioninfo} 2019, 2016, and 2013 Find Exchange 2019 / 2016 and 2013 Build...
Cisco Simple GRE with IPSEC Tunnels
GRE with IPSEC KB ID 0000951 Problem I’ve spent years setting up VPN tunnels between firewalls. The only time I’ve ever dealt with GRE is for letting VPN client software though firewalls. GRE’s job is to ‘encapsulate’ other protocols and transport those protocols inside a virtual point to point link. Below is the topology, I’m going to use. The tunnel will run form Router R1 to Router R3, once...
VMware Workstation – ‘Linked Clones’ from Templates
Linked Clones KB ID 0000953 Problem VMware Workstation, is a great test tool, if i need to take a look at some new software, or plan how I’m going to do a job, and I don’t have access to the ESX server, or test bench, it’s a great tool to have on my laptop. If you build machines form scratch, every time you need one it can take a while. To address that you can create a template and deploy machines from that. To...
SQL SSMS Certificate Error
SSMS Certificate Error KB ID 0001921 Problem While attempting to open Microsoft SQL Server Management Studio (Version 21) I was met with this. Encryption was enabled on this connection, review your SSL and certificate configuration for the target SQL Server, or enable ‘Trust server certificate’ in the connection dialog” Additional Information A connection was successfully established with the server, but then an...
Cisco – Configuring Dynamic Multipoint Virtual Private Networks DMVPN
DMVPN KB ID 0000954 Problem A while back I uploaded a run through on how to deploy GRE tunnels and protect those tunnels with IPsec. That point-to-point GRE tunnel is a good solution, but if you have a lot of sites it’s not a solution that scales very well. Yes you can have 2147483647 tunnel interfaces, but good luck manually configuring all those tunnels and even if you did, if you want each of your remote sites to talk to each...
Implementing GDOI into DMVPN
GDOI into DMVPN KB ID 0000956 Problem Just recently I covered DMVPN, which is a great scalable system for adding new sites to your network infrastructure and have them join an existing VPN solution without the need to add extra config at the ‘hub’ site. One of the advantages of DMVPN is it maintains VPN connections from your ‘Spoke’ sites back to the ‘Hub’ site, but if a spoke site needs to speak...
The uploaded file exceeds the upload_max_filesize directive in php.ini
upload_max_filesize KB ID 0001125 Problem When attempting to upload a file to your website, (in my case from within WordPress). You see this error. Solution: upload_max_filesize Update: 27-05-25: This started plaguing me again recently, and despite me searching all over for php.ini files I could NOT fix it, turns out there was a typo in the php.ini file that was stopping the whole file from loading properly. I uploaded the php.ini...