Advent of Code 2023 – Day 2

I did not have Grafana dashboards that worked in my Ceph installation. Hence, I had to install Prometheus and Grafana manually and then configure the dashboards to show up in my Ceph cluster dashboard screens. NODE Setting up prometheus exporter in ceph. sudo ceph mgr module enable prometheus sudo ceph config set mgr mgr/prometheus/server_addr 0.0.0.0…

We will look into using Sapper with Webpack and build a small notes application and talk about the different features available in the Sapper framework.

We explore how to package your Java code using jlink and maven in order to get all your dependencies in order.

We look into using the cephadm tooling to bootstrap and configure a small cluster with 3 drives and multiple hosts. We go into how cephadm administers different resources and shares them between hosts. Installing main host First we need curl in order to fetch the cephadm application sudo apt install -y curl Then we download…

We look into the PWNKit vulnrability and how it works. PWNKit is a linux exploit that have been in linux environments for over 12 years. We look at how it works and what is required to be vulnrable and different approaches to secure your system.

We talk about building different file utils and how they can be stringed together to great usage.