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Red Hat: Oracle Linux 8 Update 1 (RHEL 8.1), SDNs and NFV

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Red Hat
  • Announcing Oracle Linux 8 Update 1

    Oracle is pleased to announce the general availability of Oracle Linux 8 Update 1. Individual RPM packages are available on the Unbreakable Linux Network (ULN) and the Oracle Linux yum server. ISO installation images will soon be available for download from the Oracle Software Delivery Cloud and Docker images will soon be available via Oracle Container Registry and Docker Hub.

    Oracle Linux 8 Update 1 ships with Red Hat Compatible Kernel (RHCK) (kernel-4.18.0-147.el8) kernel packages for x86_64 Platform (Intel & AMD), that include bug fixes, security fixes, and enhancements; the 64-bit Arm (aarch64) platform is also available for installation as a developer preview release.

  • Oracle Linux 8 Update 1 Announced With Udica, Optane DCPM Support

    Fresh off the release of Red Hat Enterprise Linux 8.1 at the beginning of November, Oracle is now shipping Oracle Linux 8 Update 1 as their spin of RHEL 8.1 with various changes on top -- including their "Unbreakable Enterprise Kernel" option.

  • Telco revolution or evolution: Depends on your perspective, but your network is changing

    As the market embraces edge computing and 5G networks, telecommunications service providers are increasingly looking for ways to migrate their monolithic services to microservices and containers. These providers are moving from legacy hardware appliances to virtualized network functions to containerized network functions on cloud infrastructure. Red Hat’s partnership with a rich ecosystem of software-defined networking (SDN) vendors, independent software vendors (ISVs), network equipment providers (NEPs), as well as its deep involvement in the open source projects powering these initiatives, give customers the choices and long-life support they need to build the services infrastructure that supports their business needs both today and tomorrow – as well as the journey in between.

  • The rise of the network edge and what it means for telecommunications

    5G. Software-defined networking (SDN) and network functions virtualization (NFV). IoT. Edge computing. Much has been said about these technologies and the impact they will have on the telecommunications services of tomorrow. But it’s when they’re talked about together—as part of the broader digital transformation of service provider networks and business models—that things really get interesting. It’s a story that may impact every corner of the telecommunications ecosystem, from mobile network operators (MNOs), traditional service providers, and cable network operators to cellular tower companies, data center operators, managed services providers, and vendors.

    SDN and NFV hold the promise of replacing enormous networks of proprietary, single-purpose appliances with racks of off-the-shelf compute and storage platforms that are running software from a variety of vendors for a variety of services. Progress on this front has been slowed by several issues, leaving operators looking for their next opportunity. It has emerged in the form of 5G, and whether they are early adopters or taking a wait-and-see approach, every telco company is looking for its 5G play.

First Major Update to Oracle Linux 8 Brings Enhanced Security

  • First Major Update to Oracle Linux 8 Brings Enhanced Security, Latest Updates

    Based on the Red Hat Enterprise Linux 8.1 release, Oracle Linux 8 Update 1 is here six months after the release of the Oracle Linux 8 operating system series, which adds a new distribution method combining BaseOS and Applications Streams. It adds updated components and enhanced security to better control and protect your installations on desktop and cloud.

    "With Oracle Linux 8, the core operating environment and associated packages for a typical Oracle Linux 8 server are distributed through a combination of BaseOS and Applications Streams. BaseOS gives you a running user space for the operating environment. Application Streams provides a range of applications that were previously distributed in Software Collections, as well as other products and programs, that can run within the user space," said Oracle.

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Events: KVM Forum 2019 and "Bar Charts for Diversity"

  • A recap of KVM Forum 2019

    The 13th KVM Forum virtualization conference took place in Lyon, France in October 2019. One might think that development may have finished on the Kernel Virtual Machine (KVM) module that was merged in Linux 2.6.20 in 2007, but this year's conference underscored the amount of work still being done, particularly on side-channel attack mitigation, I/O device assignment with VFIO and mdev, footprint reduction with micro virtual machines (VMs), and with the ability to run VMs nested within VMs. Many talks also involved the virtual machine monitor (VMM) user-space programs that use the KVM kernel module—of which QEMU is the most widely used.

  • Enhancing KVM for guest protection and security

    A key tenet in KVM is to reuse as much Linux infrastructure as possible and focus specifically on processor virtualization. Back in 2007, this meant a smaller code base and less friction with the other kernel subsystems, especially when compared with other virtualization technologies such as Xen. This led to KVM being merged into the mainline with relative ease. But now, in the era of microarchitectural vulnerabilities, the priorities have shifted, and the KVM's reliance on other kernel subsystems can be a liability. For one thing, the host kernel widens the TCB (Trusted Computing Base) and makes for a larger attack surface. In addition, kernel data structures such as the direct memory map give Linux access to guest memory even when it is not strictly necessary and make it impossible to fully enforce the principle of least privilege. In his talk "Enhancing KVM for Guest Protection and Security" (slides [PDF]) presented at KVM Forum 2019, long-time KVM contributor Jun Nakajima explained this risk and suggested some strategies to mitigate it.

  • Bar charts for diversity

    At the Linux App Summit I gave an unconference talk titles Hey guys, this conference is for everyone. The “hey guys” part refers to excluding people from a talk or making them feel uncomfortable – you can do this unintentionally, and the take-away of the talk was that you, (yes, you) can be better. I illustrated this mostly with conversational distance, a favorite topic of mine that I can demonstrate easily on stage. There’s a lot of diversity in how far people stand away from strangers, while explaining something they care about. The talk wasn’t recorded, but I’ve put the slides up. Another side of diversity can be dealt with by statistics. Since I’m a mathematician, I have a big jar of peanuts and raisins in the kitchen. Late at night I head down to the kitchen and grab ten items from the jar. Darn, all of them are raisins. What are the odds!? Well, a lot depends on whether there are any peanuts in the jar at all; what percentage is peanuts; whether I’m actually picking things randomly or not. There’s a convenient tool that Katarina Behrens pointed me to, which can help figure this out. Even if there’s only a tiny fraction of peanuts in the jar, there’s an appreciable chance of getting one (e.g. change the percentage on that page to 5% and you’ll see).

Linux on the MAG1 8.9 inch mini-laptop (Ubuntu and Fedora)

The Magic Ben MAG1 mini-laptop is a 1.5 pound notebook computer that measures about 8.2″ x 5.8″ x 0.7″ and which features an 8.9 inch touchscreen display and an Intel Core m3-8100Y processor. As I noted in my MAG1 review, the little computer also has one of the best keyboards I’ve used on a laptop this small and a tiny, but responsive trackpad below the backlit keyboard. Available from GeekBuying for $630 and up, the MAG1 ships with Windows 10, but it’s also one of the most Linux-friendly mini-laptops I’ve tested to date. [...] I did not install either operating system to local storage, so I cannot comment on sleep, battery life, fingerprint authentication, or other features that you’d only be able to truly test by fully installing Ubuntu, Fedora, or another GNU/Linux-based operating system. But running from a liveUSB is a good way to kick the tires and see if there are any obvious pain points before installing an operating system, and for the most part the two operating systems I tested look good to go. Booting from a flash drive is also pretty easy. Once you’ve prepared a bootable drive using Rufus, UNetbootin, or a similar tool, just plug it into the computer’s USB port, hit the Esc key during startup to bring up the UEFI/SETUP utility. Read more Also: Top 10 technical skills that will get you hired in 2020

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