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HowTos

today's howtos

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today's howtos

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HowTos
  • A New Mental Model for Computers and Networks
  • Securing the Cyrus SASL Sample Server and Client with Kerberos
  • Deploy containers with Atomic Host, Ansible, and Cockpit

    In the course of my job at Red Hat, I work with Docker containers on Fedora Atomic host every day. The Atomic Host from Project Atomic is a lightweight container OS that can run Linux containers in Docker format. It’s been modified for efficiency, making it optimal to use as a Docker run-time system for cloud environments.

    Fortunately I’ve found a great way to manage containers running on the host: Cockpit. Cockpit is a remote manager for GNU/Linux servers with a nice Web UI. It lets me manage servers and containers running on the host. You can read more about Cockpit in this overview article previously published here. However, I also wanted to automate running containers on the host, which I’ve done using Ansible.

    Note that we cannot use the dnf command on the Atomic Host. The host is designed not as a general purpose OS, but to be more fit for containers and other purposes. But it’s still very easy to set up applications and services on the Atomic Host. This post shows you how to automate and simplify this process.

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Red Hat News

today's howtos

Raspberry Pi: A closer look at Raspbian PIXEL

Over the past three posts, I have looked at a number of different Linux distributions for various models of the Raspberry Pi - including SUSE/openSUSE, Fedora, Manjaro and Ubuntu MATE, and PiCore Linux. What I haven't done yet is look at the latest version of the Raspberry Pi Foundation's own Linux distribution, Raspbian with their PIXEL desktop. So I will look at that first, and then I will wrap this series up. I know that I just recently wrote about Raspbian PIXEL, but that was a sort of "what's new" overview, and in this post I want to go much deeper, and in a lot more detail, to provide some comparison to the other Linux distributions that I have been testing. So please bear with me... Read more

Linux Kernel News

  • Linux: Why do people hate systemd?
    systemd has caused an almost unending amount of controversy in the Linux community. Some Linux users have been unyielding in their opposition to systemd, while others have been much more accepting. The topic of systemd came up in a recent thread in the Linux subreddit and the folks there did not pull any punches when sharing their thoughts about it.
  • PulseAudio 10.0 Linux Sound System Released, Offers OpenSSL 1.1.0 Compatibility
    Today, January 19, 2017, sees the official release of the PulseAudio 10.0 open-source sound server for Linux-based operating systems, a major version that introduces many exciting new features. PulseAudio 10.0 has been in development for the past seven months, since the June 22, 2016, release of PulseAudio 9.0, which is currently used by default in numerous GNU/Linux distributions.
  • Linux is part of the IoT security problem, dev tells Linux conference
    The Mirai botnet? Just the “tip of the iceberg” is how security bods at this week's linux.conf.au see the Internet of Things. Presenting to the Security and Privacy miniconf at linux.conf.au, embedded systems developer and consultant Christopher Biggs pointed out that Mirai's focus on building a big DDoS cannon drew attention away from the other risks posed by insecure cameras and digital video recorders.
  • The Linux Foundation Brings 3 New Open Source Events to China
    LinuxCon, ContainerCon, and CloudOpen will be held in China this year for the first time, The Linux Foundation announced this week. After the success of other Linux Foundation events in the country, including MesosCon Asia and Cloud Foundry Summit Asia, The Linux Foundation decided to offer its flagship LinuxCon, ContainerCon and CloudOpen events in China as well, said Linux Foundation Executive Director Jim Zemlin. “Chinese developers and businesses have strongly embraced open source and are contributing significant amounts of code to a wide variety of projects,” Zemlin said. “We have heard the call to bring more open source events to China.”