Chaos Computer Club - archive feed

A quick glance at mirrors.opensuse.org gives an idea on the disparity between the African continent and the rest of the world in terms of infrastructure to support open source. It's not just openSUSE but every other Linux distribution has just one or two, or no mirror at all in Africa. A quick glance at mirrors.opensuse.org gives an idea on the disparity between the African continent and the rest...

For those who use Linux professionally in companies, proxy servers are a horror. Under Linux there is no central configuration of proxy servers and each major library / programming language implements its own implementation. If login data and so-called PAC proxies are added, which serve not only one but several proxy servers, it gets really complicated. This is where the library libproxy comes in...

In recent years the amount of vulnerabilities and also the amount of systems, installations or containers a single sysadmin has to oversee has grown beyond any human capable measures. The best help here is more automation in various places, which needs to be driven by automation consumable data. We will look at two primary areas, the automation data provided by SUSE for security fixes and also ver...

This presentation gives an overview of application design and development for Kubernetes, the de facto standard for container orchestration in enterprises of all sizes. Using a small web server code base as an example, the talk outlines the complete application lifecycle from the initial design to deployment, service-based access in addition to more advanced aspects such as scalability, resilience...

OpenSUSE MicroOS, SLE Micro and the SUSE Adaptable Linux Platform (ALP) have moved to using SELinux for Mandatory Access Control (MAC). There are some key differences between a traditional Linux system without MAC, and one with SELinux. Furthermore, using SELinux on transactional systems such as openSUSE MicroOS and ALP-based distributions has its own peculiarities. In this talk we will introduce...

Showing cross building our new code base, based on openSUSE Factory. This includes: * Cross architecture package builds * Cross architecture image builds * Cross OS Container builds All covered by Open Build Service or plain git and pbuild tooling locally using the same sources. Showing cross building our new code base, based on openSUSE Factory. This includes: * Cross architecture package builds...

For the administrator of many Linux machines, [Uyuni](https://www.uyuni-project.org) is a very important tool. It currently runs on premise in a virtual machine or on bare metal. Could it be running in the kubernetes cluster of the lab? Would it be more scalable? Would I finally get high availability or resilience for it? This session will address these questions by explaining how we got Uyuni run...

After 13 years, a new major release of the syslog-ng logging application is available. Syslog-ng 4.0 brings type support and many additional enhancements. This presentation also gives you an overview of some of the larger features since the previous major release, and then proves why type support is a major enhancement, improving both operations and security. In version 3 and earlier, syslog-ng ha...

Let's talk about the current state and ongoing plans with openSUSE Leap 16.0 which is based on SUSE's Adaptable Linux Platform. Let's talk about the current state and ongoing plans with openSUSE Leap 16.0 which is based on SUSE's Adaptable Linux Platform. about this event: https://c3voc.de

A quick overview of the upcoming RPM 4.19 release and the plans beyond that. A quick overview of the upcoming RPM 4.19 release and the plans beyond that. about this event: https://c3voc.de

Is the IBM mainframe really an old legacy system? If all people are speaking about Cloud Native, Edge Computing and Industry 4.0, IBM has released a new mainframe exactly for the combination with that all. You can integrate the new "small" mainframe as a "Thing" or IoT device into manufacturing facilities or use it in for smaller company requirements for processing a lot of tasks/instructions in p...

This talk will introduce the new zypper-keys plugin. It provides an easy way to manage rpm repo signing keys on your local system. [https://github.com/asdil12/zyppkeys](https://github.com/asdil12/zyppkeys) This talk will introduce the new zypper-keys plugin. It provides an easy way to manage rpm repo signing keys on your local system. [https://github.com/asdil12/zyppkeys](https://github.com/asdil1...

This should consist of nine short 4-minute talks by users with 1 minute for handover. Users do not need their own laptop, but instead link their resources on https://etherpad.opensuse.org/p/lightning-talks-osc2023 Topics can be - a project the presenter made or uses that might be useful to other Geekos - a relevant topic where you look for others to join a discussion - etc This should consist of n...

When using **Xorg**, in order to have a headless remote session we could use **Xvnc**, and it worked great. You can start with it a headless **Xorg** display, on top of it use any desktop environment or just run a **Xorg** client and access it using **VNC** protocol. Now with **Wayland**, the display server is also the windows manager/compositor so there isn't just one single display server to use...

Everybody of us have got a laptop. Then there are some Embedded enthusiasts with arm hardware. Did you hear already about the architecture s390x for mainframes, which includes IBM zSystems and LinuxONE? You will learn, where such hardware is used and that you can also still use it with openSUSE. Hints will be given, how to receive mainframe access for free for open source development. Finally, the...

systemd-boot is a rather simple UEFI boot manager. Using it instead of grub might be desirable in the future. The combination with btrfs snapshots makes things more complicated though. This talk gives an introduction to systemd-boot and the challenges to fully integrate it into openSUSE. systemd-boot is a rather simple UEFI boot manager. Using it instead of grub might be desirable in the future. T...

BCI (Base Container Images) is a set of open-source container images that developers and operators can use as a foundation for containerizing applications. BCIs cover a wide range of use cases and scenarios compared to traditional enterprise distribution images. We had to take a different approach to testing and delivery to cover all these new use cases. In this session we briefly cover the histor...

Rancher can deploy and manage your Kubernetes clusters on AWS EKS and EC2. But what about things like Authentication, Logging, Monitoring or Backup? I will give an overview of AWS services for these four pillars and talk about what’s already possible, which challenges some integrations might have and an outlook what’s planned. Learn more about how the integrations are working under the hood and wh...

We are using SALT to deploy SUSE Systems for production. The included modules work well for usual problems. But what needs to be done if you want to integrate a software system (or part thereof) where there are no modules available? Calling out to shell commands won't work to well for complex tasks. You'll find the slides at https://www.jochen.org/vortraege/implementing-salt-modules.pdf We've impl...

This talk will cover the development of an openSUSE based external-dns solution that can be used within a k3s environment. The current upstream solution for external-dns is based on Alpine Linux. In order to create containers based on openSUSE, powerdns and external-dns containers were developed and published to registry.opensuse.org. During this session, the different design decisions and hurdles...

With SUSE's ALP stirring up discussions how Linux distribution may look like, we decided to try different approach how installer may work. Part of these installer try-outs is **Iguana** - installation initramfs where all heavy lifting is done in containers. Moving installers to the containers and by leveraging container infrastructure, we are trying to solve ever changing requirements or need to h...

WASM affords portability when coupled with Content Addressable Tar Files, we can utilize Peer.2 Peer distribution to enhance and reduce the size and vitality of images. This talk explores how the next evolution of containers might take place, and what key technologies are driving solutions in place today. WASM affords portability when coupled with Content Addressable Tar Files, we can utilize Peer...

Packaging for a distribution means taking sources from upstream projects, applying fixes and modifications, adding some configuration and then build the result by calling some commands. RPM formalized the process following a "pristine sources" model. The approach is basically to take the unmodified sources as released by upstream and store required changes in the form of patches as well as a build...

After some years from first openSUSE image for a mobile phone, i think it is time to let people know about status of project for this topic. In other hand the talk will check features already working and some not fixed, of course at the end there will be a resume about future of the project. This talk will show to everyone wich devices can be considered to be used in a daily drive devices and wich...

Both the ISO 27001 and ISO 27002 standards have been updated in 2022. What does this mean for open source communities and companies leveraging open source? What are the most significant changes to the standards? The new ISO27001 standard requires companies to identify and meet the needs of interested parties, such as customers and suppliers. That way, organizations can ensure that their informatio...