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...