VMware – Setting up ESX NTP Time Sync
ESX NTP KB ID 0000798 Problem Having your ESX Server running the correct time is quite important, and before you visit this subject, I would suggest you MAKE SURE the time is set in the ESX Servers BIOS, ie the internal clock is set correctly first. I’ve lost count of the amount of times I’ve seen Windows domains fall over because the ESX host has reverted to its BIOS time and replicated that time to its guests, suddenly your...
Windows – Setting Domain Time
Domain Time KB ID 0000112 Problem If you have arrived here, you have either noticed that the time is wrong on your server(s) or client PC(s), or you have looked in the event viewer and seen one of the following events being logged. Event ID’s 12, 22, 29, 36, 38, 47, and 50. Time Problem Events – On the PDC Emulator Event ID 12 (W32 Time Time Provider NtpClient: This machine is configured to use {text omitted}, but it is...
Network Connection Failiure
Network Connection Failiure KB ID 0001894 Problem Logon failure the user has not been granted the requested logon type at this computer. {Location} is not accessible. You might not have permission to use this network resource. Contact the administrator of this server to find out if you have access permissions Solution : Network Connection Failiure If you’re seeing the error “The user has not been granted the requested...
Trust a Certificate
Trust a Certificate KB ID 0001893 Problem There was a question on the Spiceworks forum this week and I suggested simply trusting the certificate to stop a certificate error, and got asked. Could you please let me know how to import the downloaded certificate I was surprised to find I’d not really covered this as a stand-alone subject so here we go. Solution: Trust a Certificate Firstly, If you can go and spend a few minutes...
Ubuntu Static IP
Ubuntu Static IP KB ID 0001892 Problem Like most OSs out of the box the system is set to get it’s IP address from a DHCP server (i.e. dynamically). On the rare occasions I’m deploying Linux its to perform a specific task, so in nearly all cases I want it to have a static IP. Here is how to achieve that. Solution : Ubuntu Static IP Disable Cloud-Init Since Ubuntu version 18.04, it has shipped with this enabled, you can proceed with it...
KVM Bridge Network
Bridge Network KB ID 0001891 Problem Not sure why KVM does not come preconfigured for this out of the box, and it took me a very long time to work out how to do this. But if you want your KVM VMs to behave as if they are on your production LAN (rather than the default of setting up DHCP and NAT). The default is fine but if you want to access your VMs from outside the host you need to setup bridged networking. In my example I want my...
Install Ubuntu KVM
Ubuntu KVM KB ID 0001890 Problem I’ve been looking at KVM for a couple of reasons, firstly people are looking at VMware alternatives, now there’s no ‘free version’, and secondly the firm I work for have potentially a large KVM to VMware migration on the horizon, so I thought I’d build it on the test bench and see how best to address that migration scenario. Note: This was written with Ubuntu version 24.04,...
SSH: Host Identification Has Changed
Host Identification Has Changed KB ID 0001889 Problem I’ve been doing a lot of building and destroying Linux boxes lately, and came across this problem, (while attempting to SSH into one). WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY! Someone could be eavesdropping on you right now (man-in-the-middle attack)! It is also possible that a host key has just been changed. The...
Hyper-V Enable Nested Virtualisation
Enable Nested Virtualisation KB ID 0001888 Problem Note: Also the solution for Hyper-V on windows 11 If you want to enable virtualisation in a VM that is running inside Hyper-V (itself a hypervisor). Then you need to expose the virtualisation elements of the physical hosts processor to the nested VM. In the case of Intel VMs that’s VTx and EPT. (For Intel based CPUs). Under VMware you would simply enable “Expose hardware...
Microsoft 365 Backup
Microsoft 365 Backup KB ID 0001887 Problem : Microsoft 365 Backup Originally released 2023, Microsoft 365 Backup is now general release. Microsoft 365 Backup is a comprehensive backup and recovery solution designed to protect your critical data stored in OneDrive, SharePoint, and Exchange*. This service ensures that your data is always recoverable, providing peace of mind in the face of potential data loss scenarios like ransomware...