The ramblings of a computer geek
If you try to monitor a cloudflare fronted website with NagiosXI check_http you may get this: After much fiddling found that if you formulate the check string as: You’ll get a result like this, which is what we want! You need to use this: Enable SSL/TLS hostname extension support (SNI) The SNI is Server Name … Read more
https://microk8s.io/docs/registry-images So images. A container is based on an image. You can pull these images in from the outside world, e.g. from a Public, Private registry, or from the built-in registry. For this copy the “hello-python” directory we created in Part 2 into one called “hello-python3”, you can delete the .tar file in there for … Read more
Well Part 2 was very long, so lets have a shorter one and cover how you can adjust your application on the fly and add the other worker nodes to the cluster. Updating an Application or Service on the Fly Kubernetes is a system whereby you declare what you want the “world” to look like, … Read more
Log onto your master node via SSH. We’re going to build an image and then deploy it, so as a developer you’d probably be developing on your own machine possibly running docker locally to test how your containers work before deploying the code to a repository where it can then be applied to a production … Read more
Kuberntes is a platform for the managing of containerised workloads and services, that is akin to a declarative infrastructure as code type platform. It allows developers to deploy containerised applications quickly and easily and in such a way that infrastructure system administrators can manage the infrastructure for the applications to be as adaptable and flexible … Read more
I’ve always needed to be able to connect into my home network remotely for one reason or another, so wanted a quick, secure and cheap VPN solution to do the trick. If you’re only going to have a handful of users connected at one time something like a Raspberry Pi is ideal for the job, … Read more
Let’s say you’ve identified a dependency that is needed on your machine, but you don’t know what package will provide the required file, you can use the “yum search <name> | grep <more granular name>” to narrow it down, but to see inside the package before install you can run the below, in my example … Read more
yum install hplip-gui hp-plugin hp-setup Follow the wizard through and setup the USB printer. https://www.centos.org/forums/viewtopic.php?t=62564
In a continued bid to build a desktop Linux machine, I was working on getting the three monitors working. One of the monitors uses the onboard graphics, the other two are plugged into a PCI-E riser card. The issue was that the monitor type is not detected by the onboard graphics, so reports the incorrect … Read more
Whilst building a new home machine I came across this issue where the third screen in my three screen setup was only seen as an “Unknown Display”. My machine has an on-board graphics card and a 2 port PCI-E riser graphics card, the monitors connected to the 2 port riser were working correctly, and the … Read more