This year you’ve got a lot of decisions to make before you got to Red Hat Summit in San Francisco, CA from 8-10 May 2018.
There are breakout sessions, birds-of-a-feather sessions, mini sessions, panels, workshops, and instructor led labs that you’re trying to juggle into your daily schedule. To help with these plans, let’s try to provide an overview of the labs in this series.
In this article let’s examine a track focusing only on Red Hat Enterprise Linux (RHEL). It’s a selection of labs where you’ll get hands-on with package management, OS security, dig into RHEL internals, build a RHEL image for the cloud and more.
The following hands-on labs are on the agenda, so let’s look at the details of each one.
Continue reading “Ultimate Guide to Red Hat Summit 2018 Labs: Hands-on with RHEL”
In this article I want to talk about a runC container which I want to migrate around the world while clients stay connected to the application.
In my previous Checkpoint/Restore In Userspace (CRIU) articles I introduced CRIU (From Checkpoint/Restore to Container Migration) and in the follow-up I gave an example how to use it in combination with containers (Container Live Migration Using runC and CRIU). Recently Christian Horn published an additional article about CRIU which is also a good starting point.
In my container I am running Xonotic. Xonotic calls itself ‘The Free and Fast Arena Shooter’. The part that is running in the container is the server part of the game to which multiple clients can connect to play together. In this article the client is running on my local system while the server and its container is live migrated around the world.
This article also gives detailed background information about
Continue reading “Container Migration Around The World”
Recent Red Hat Enterprise Linux releases see an expansion in support of the smart card related use cases. However customers usually have a mixed environment and standardize on a specific version of Red Hat Enterprise Linux for period of time. It is important to understand the
Continue reading “Smart Card Support in Red Hat Enterprise Linux”
While there is a lot more than just the “Regulatory Technical Standard 25”, abbreviated to RTS 25 from now on, in the EU’s MiFID II regulations, the focus of this blog is all around RTS 25 and achieving compliance with the time synchronisation requirements this entails.
At a high level, the goal of MiFID ii is
Continue reading “MiFID ii, RTS 25 and time synchronisation in Red Hat Enterprise Linux and Red Hat Virtualization”
Questions related to DNS and service discovery regularly come up during deployments of Identity Management (IdM) in Red Hat Enterprise Linux in a trust configuration with Active Directory. This blog article will shed some light of this aspect of the integration.
We will start with a description of the environment. Let us say that the Active Directory environment consist of
Continue reading “Discovery and Affinity”
Most people don’t consider their average USB memory stick to be a security threat. In fact, in a social engineering experiment conducted in 2016 at the University of Illinois and detailed in this research paper, a group of researchers dropped 297 USB sticks outside in the parking lot, in the hallway, and classrooms. Of the 297 USB sticks dropped,
Continue reading “Built-in protection against USB security attacks with USBGuard”
In Part 1, we created a working BIND container with local data storage. We can make changes on the local system that will get picked up in the running container. In this part, we’ll explore how we can manage the service from the host with
Continue reading “Containing System Services in Red Hat Enterprise Linux – Part 2”
At the 2017 Red Hat Summit, several people asked me “We normally use full VMs to separate network services like DNS and DHCP, can we use containers instead?”. The answer is
Continue reading “Containing System Services in Red Hat Enterprise Linux – Part 1”
Last week, Intel launched the new family of Intel® Xeon® scalable processors with new features such as Intel Advanced Vector Extensions 512 (Intel AVX-512), which boost performance of computationally intensive tasks, a new Intel Mesh Architecture for reduced system latency, Intel QuickAssist Technology for hardware acceleration of cryptography and data compression operations and integrated high-speed fabric with Intel Omni-Path Architecture. According to Intel,
Continue reading “Red Hat Enterprise Linux Brings Forth Performance and Scalability Features of New Intel Xeon Processor Family”
If you’re working with container images on Red Hat Enterprise Linux 7.1 or Red Hat Enterprise Linux Atomic Host, you might have noticed that the search and pull behavior of the included docker tool works slightly differently than it does if you’re working with that of the upstream project. This is intentional.
When we started the planning process for containers in RHEL 7.1, we had 3 goals in mind:
- Give control over the search path to the end-user administrator
- Enable a federated approach to search and discovery of docker-formatted container images
- Support the ability for Red Hat customers to consume container images and other content included as part of their Red Hat Subscription
The changes we implemented, which are documented on the Red Hat Customer Portal, affect three different areas of the tool:
Continue reading “Understanding the Changes to ‘docker search’ and ‘docker pull’ in Red Hat Enterprise Linux 7.1”