Ever wondered what can be the highest load average on the unix-like system? Do we even know what this parameter tells about? It shows the average number of either actively running or waiting processes. It should be close to the number of logical processors present on the system, otherwise, in case it is greater than this, some things will need to wait in order to be executed. So I was testing 1000 LXC containers on the 2 x 6 core Xeon system (totalling as 24 logical processors) and leave it for a while. Once I got back I saw that
Get rid of ads and stop sending your data for free to Opera Little history My favourite browser was Opera for so many years. Between 2000 and 2005 it was adware showing, well… ads. In 2005 ads have been remove as the financing came from Google, Opera’s default search engine. In 2013 Opera dropped its own rendering engine in favor to Chromium. In 2023 Opera gets some AI features. What is all about? I still like Opera. It has this great multi workspace feature, battery saving mode and in general it is much more capable of running plenty of tabs
Use Microsoft Azure AI Services to analyze images, voice, documents. No AI/ML or coding skills required. Responsible AI applies by EU AI act. Formerly Cognitive Services. Course of Action What is Microsoft Azure? It is Microsoft’s public cloud platform offering broad range of products and services, including virtual machines, managed containers, databases, analytics platforms as well as AI Services. Major competitors of Azure are Amazon AWS and Google’s GCP. What are AI Services (formerly Cognitive Services)? It is a set of various services concerning recognition and analysis procedures based on already trained ML models (or even traditional programming techniques). You
I defined Docker Swarm cluster with 20 nodes and created service using Nginx HTTP server Docker image. I scaled it to 1000 container instances, which took a while on my demo hardware. Containers are up and running but to get such statistics from Portainer CE UI is quite difficult, so I suggest using CLI in such a case: I got exacly 1000 containers on my service named “nginx3”. Hardware is not so much utilized, combined 2 servers RAM usage oscillates around 50GB, load stays low as there is not much happening, so even using 20 VM and Docker containers, we
If you wonder how to automatically deploy 20 nodes of Docker Swarm and run 100 Docker containers in it, then continue reading. I will show how to achieve this by using Terraform, Ansible and Portainer. Course of action What is Docker Swarm and why I need to have 20 of these? Docker is containers toolkit utilizing cgroups, namespaces which allows to control and share resources of the CPU and operating system. Docker Swarm its a special kind of runtime mode, which allows to run multiple clustered nodes which can be separate physical computers or virtual machines. It gives us scalability
If you wonder how to automate Ubuntu virtual machine creation and then deploy it to Proxmox in multple copies, then you are looking for Packer and Terraform. Side note: going for virtual machines in Proxmox is the proper way. I tried for several days to have LXC containers working, however finally I will say that it is not the best option with lot of things going bad like cgroups, AppArmor, nesting, FUSE, ingress networking etc. There is literally too much to handle with LXC and with VM there is no such problem, so discussion end here in favour of Proxmox
On fresh installation of Ubuntu 22, using Opera for video playback can be an issue. So even after installing all things that you may think it could help – it does not work. The solution is to install chromium-ffmpeg and copy its libffmpeg.so library into Opera installation folder. Be aware that snap installation path differs in few places so check your installation. After copying ffmpeg library, just restart Opera and the video, previously not loading in LinkedIn, will work.
If you run digital services platform or critical infrastructure then most probably you are covered by NIS 2 and its requirements including those concerning information security. Even if you are not covered by NIS 2, then still you may benefit from its regulations which seem to be similar with those coming from ISO 27001. In this article I show how to automatically deploy anti-rootkit and anti-virus software for your Linux workstations and servers. TLDR By using rkhunter anti-rootkit and ClamAV anti-virus you are closer to NIS 2 and ISO 27001 and farther away from threats like cryptocurrency miners and ransomware.
The article explores the use of ArchiMate, a modeling language, for enterprise architecture, focusing on its application through the Archi tool. ArchiMate offers a structured approach to modeling complex IT systems by providing various layers such as motivation, strategy, business, and technology. The author explains how Archi facilitates the visualization of enterprise architecture, making it easier to manage and understand. Additionally, the article covers practical aspects like setting up a Git repository for team collaboration and managing model changes effectively. A practical example project demonstrates the application of these concepts in a real-world scenario. In complex world of IT artifacts