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Red Hat Enterprise Linux 8

Red Hat Enterprise Linux 8 (RHEL 8) is now available on all eRacks Systems with lots of developer-friendly capabilities.

Red Hat Inc. announced the official release of Red Hat Enterprise Linux (RHEL) 8 on May 7, 2019.

Red Hat Enterprise Linux 8 (RHEL 8) comes with new features and improvements as compared to the predecessor – RHEL 7. Some of the new features of RHEL 8 are as described below.

Kernel & OS

Red Hat Enterprise Linux 8.0 is based on Fedora 28 and upstream kernel 4.18. This provides users with a secure, stable and consistent foundation across hybrid cloud and Data Center deployments with tools needed to support all levels of workloads.

 

Storage and File systems

Stratis is the new local storage manager for RHEL 8. It provides managed file systems on top of pools of storage with additional features to the user. Stratis provides ZFS/Btrfs-style features by integrating layers Linux’s device mapper subsystem, and the XFS filesystem.

Stratis supports LUKSv2 disk encryption and Network-Bound Disk Encryption (NBDE) for more robust data security.

  • With Stratis, you can easily perform storage tasks such as:
  • Maintain file systems
  • Manage snapshots and thin provisioning
  • Automatically grow file system sizes as needed

Pools are created from one or more storage devices, and volumes are created from a pool. The file system is created on top of a volume, hence resizing a volume automatically resize FS as well. The default file system used by Stratis is XFS.

Other notable Storage features are:

  • The XFS file system now supports shared copy-on-write data extent functionality. This enables two or more files to share a common set of data blocks. Creating shared copies does not utilize disk I/O nor consume additional disk space. The files sharing common blocks act like regular files.
  • The shared copy-on-write data extents are now enabled by default when creating an XFS file system, starting with the xfsprogs package version 4.17.0-2.el8.
  • Support for Virtual Data Optimizer (VDO) on all of the architectures supported by RHEL 8.
  • LUKS2 is now the default format for encrypting volumes. This replaces the legacy LUKS (LUKS1) format distributed in RHEL 7. LUKS2 provides encrypted volumes with metadata auto-recovery and redundancy if partial metadata corruption is encountered.

 

Virtualization

  • Red Hat Enterprise Linux 8 is distributed with qemu-kvm 2.12 with – Q35 guest machine type support, UEFI guest boot support, vCPU hot plug and hot unplug, NUMA tuning and pinning in the guest and guest I/O threading
  • The QEMU emulator introduces the sandboxing feature. QEMU sandboxing provides configurable limitations to what systems calls QEMU can perform, and thus makes virtual machines more secure
  • KVM virtualization now supports the User-Mode Instruction Prevention (UMIP) feature, which can help prevent user-space applications from accessing to system-wide settings
  • KVM virtualization now supports the 5-level paging feature, which significantly increases the physical and virtual address space that the host and guest systems can use.
  • NVIDIA vGPU is now compatible with the VNC console
  • Ceph storage is supported by KVM virtualization on all CPU architectures supported by Red Hat
  • Q35, a more modern PCI Express-based machine type is supported by RHEL 8 Virtualization. All virtual machines created in RHEL 8 are set to use Q35 PC machine type by default

 

eRacks/INTELLINATOR22

Configure your Own eRacks/INTELLINATOR Server With Red Hat Enterprise Linux 8 (RHEL 8).

 

Networking

Below are the new changes in the Networking Level:

  • RHEL 8 is distributed with TCP networking stack version 4.16, which provides higher performances, better scalability, and more stability.
  • The networking stack upgraded to upstream version 4.18
  • Iptables has been replaced by the nftablesframework as the default network packet filtering facility.
  • The nftables framework is the designated successor to the iptables, ip6tables, arptables, and ebtables tools. This provides a single framework for both the IPv4 and IPv6 protocols
  • The firewalld daemon now uses nftables as its default backend.
  • Support for IPVLAN virtual network drivers that enable the network connectivity for multiple containers.
  • Network Manager now supports single-root I/O virtualization (SR-IOV) virtual functions (VF). Network Manager allows configuring some attributes of the VFs, such as the MAC address, VLAN, the spoof checking the setting and allowed bitrate

 

Content Distribution

Red Hat Enterprise Linux 8 has two modes of Content distribution and will only need two repositories enabled.

  1. BaseOS repository – The BaseOS repository provides the underlying core OS content in the form of traditional RPM packages. BaseOS components have a life cycle identical to that of content in previous Red Hat Enterprise Linux releases.
  2. AppStream repository – The Application Stream repository provides all the applications you might want to run in a given userspace. Other software that has special licensing are available on a Supplemental repository.

 

Web servers, Web Tools, Web Management – Cockpit, Compilers, Languages & Databases, Software Management

Red Hat Enterprise Linux 8 includes Application Streams of multiple versions of databases, languages, compilers, and other tools available for your use.

RHEL 8 comes with Cockpit automatically installed and firewall ports required by Cockpit are automatically opened. Cockpit interface can be used to apply Policy-Based Decryption (PBD) rules to disks on managed systems.

RHEL 8 YUM package manager is now based on the DNF technology and it provides support for modular content, increased performance, and a well-designed stable API for integration with tooling. The version of RPM is 4.14.2 and it validates the whole package contents before it starts the installation.

 

Desktop Environment

RHEL default Desktop Environment is GNOME. The GNOME Project is supported by the GNOME Foundation. Gnome version 3.28 shipped in RHEL 8 which has automatic downloading of operating systems in Boxes. Other new features include:

  • New on-screen keyboard
  • New GNOME Boxes features
  • Extended devices support, most significantly integration for the Thunderbolt 3 interface
  • Improvements for GNOME Software, dconf-editor and GNOME Terminal
  • GNOME Software utility, which enables you to install and update applications and gnome-shell extensions.
  • GNOME Display Manager (GDM) use Wayland as their default display server instead of the X.org server

Features of Wayland display server

    • Stronger security model
    • Improved multi-monitor handling
    • Improved user interface (UI) scaling
    • The desktop can control window handling directly.

 

Security

RHEL 8 comes with support for OpenSSL 1.1.1 and TLS 1.3. This enables you to secure customer’s data with the latest standards for cryptographic protection.

RHEL 8 comes with System-wide Cryptographic Policies which helps you with the management of cryptographic compliance. No need to modify and tune specific applications.

OpenSSH has been rebased to version 7.8p1– with no support for SSH version 1 protocol, Blowfish/CAST/RC4 ciphers, hmac-ripemd160 message authentication code.

 

Red Hat Developer Subscriptions

Red Hat Developer members have been enjoying no-cost developer subscriptions for 3+ years now, and RHEL 8 is now automatically part of that. If your company wants developer support, there are several Red Hat Enterprise Linux Developer Subscriptions options with Red Hat support, too.

For more detail please contact eRacks Systems or visit Red Hat Enterprise Linux 8 official Page.

May 12th, 2019

Posted In: Linux, New products, News, Open Source, Operating Systems, virtualization

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fedora30Fedora 30 is now available on all eRacks systems.

Fedora is a community-driven Linux distro that’s sponsored by the open source giant Red Hat. As Fedora is the upstream source of the company’s commercial RHEL distro, it’s also used as a testing ground for RHEL. As Linux enthusiasts might already know, Fedora is known as an innovative Linux distro that doesn’t hesitate when it comes to testing new technologies and helping other distros by making changes upstream for all distros. Shipping with many useful open source software, it’s known for providing a GNOME-based fluid desktop experience.

 

 

 

Fedora community recently released Fedora 30 just after about the 6 months from the version release as Fedora 29. On Fedora magazine they wrote about the early release of Fedora 30.

It seems like it was just six months ago that we announced Fedora 29, and here we are again. Today, we announce our next operating system release. Even though it went so quickly, a lot has happened in the last half year, and you’ll see the results in Fedora 30.

Many desktop users love Red Hat’s community Linux Fedora. They have good reason. Fedora is a great Linux desktop. But Fedora’s far more than just a desktop. It comes in three major versions: One for the workstation, another for containers, and still another that works as a server both on your server hardware and on the cloud.

 

About many changes, “Matthew Miller”, the Fedora Project Leader, explained in a statement:

Computing scenarios don’t remain static and neither does Fedora. With the updates around Fedora 30, we’re providing an evolving spectrum of operating system editions to better meet diverse IT challenges. From containerized developer workspaces with Flatpak and Silverblue to expanded server and container infrastructure options in Fedora 30 Cloud and Fedora CoreOS, the Fedora Project remains focused on Linux innovation.

 

 

New features in Fedora 30

The biggest change in Fedora 30 is the new GNOME 3.32 desktop environment. Over the course of past few releases, GNOME desktop has made many changes to reduce its memory consumption; GNOME 3.32 takes things further and makes things more fluid and snappier by making enhancements in the core GNOME libraries.

On the visual front, the desktop environment adds a refreshed visual style that makes the overall look more polished. Moreover, the application icons, user icons, buttons, switches, etc., are also redesigned.

Talking about different packages that are included in the distro, you get the latest GCC 9, PHP 7.3, Bash 5.0, Ruby 2.6, and other apps.

This release is powered by the latest Linux 5.0, which brings better hardware support and display performance. You also get new features like support for energy-aware scheduling, Btrfs swap file, AMDGPU FreeSync, etc.

With the Fedora 30 release, the cloud and server releases are being combined into the Fedora Server Edition. Also, Fedora CoreOS is replacing Fedora Atomic Host as the container-focused offering. There are other variants as well, including Fedora Spins and Labs.

 

Fedora 30 Workstation

fedora_30_workstation

 

Fedora 30 Workstation includes the latest version of the GNOME interface, GNOME 3.32. Fedora also supports the other major Linux desktop environments, including Cinnamon, KDE, LXDE, MATE, and Xfce. It also includes fractional scaling, a refreshed visual style, animation improvements, and new icons. The net effect is to make a more visually pleasing desktop, which works well on high-end monitors.

Fedora Workstation now uses the “flicker-free boot” system, so the display does not turn on and off during the boot process.

You can also now run the Fedora desktop as a containerized desktop, Fedora Silverblue, with rpm-ostree at its heart. This replaces the traditional RPM package management with atomic upgrade/rollback. In this model, Fedora provides ready-made base operating system image. When you install a program, using either rpm-ostree or Flatpak, it creates essentially a restore point. These are then tracked, and if something goes wrong, you can reset to your restore point with minimal harm done.

 

Fedora 30 Server

fedora_30_server

 

Fedora 30, released April 30, 2019, has the following new and improved features:

The product definitions for Fedora’s “Editions” have been revamped. Fedora Cloud and Fedora Server editions are now a single product, simply called Fedora Server. Fedora Atomic Host has been replaced with Fedora CoreOS, in the wake of Red Hat’s acquisition of that container-based Linux distribution. Fedora Workstation remains mostly the same.

Fedora Server now supports Linux System Roles, created by Ansible to provide consistent ways to configure common Linux subsystems such as the network, the email system (Postfix), SELinux, and a few others. The list of roles is constantly being expanded.

Almost all Python 2 packages have been removed from the system, as part of Fedora’s switch from Python 2 to Python 3.

MongoDB has been removed from Fedora, as its licensing (the Server-Side Public License v1) is not believed to be compatible with other free software licenses.

Support for many deprecated cryptography standards is being removed: DES, 3DES, CRC32, and MD4. RC4 and MD5 are being marked as deprecated.

As with each edition of Fedora, many individual software components have been upgraded:

  • Bash 5.0
  • Boost 1.69
  • Erlang 21
  • FreeIPA 4.8 (which now uses Python 3.6)
  • GCC 9
  • glibc 2.29
  • Golang 1.12
  • GNOME 3.32
  • Haskell GHC 8.4
  • java-openjdk JDK12
  • PHP 7.3
  • Ruby 2.6
  • Vagrant 2.2

For more details please visit the official Fedora Releases/30/ChangeSet.

 

To upgrade your existing Fedora 29 installation to Fedora 30, you need to run the following commands in terminal one by one:

sudo dnf upgrade --refresh

sudo dnf install dnf-plugin-system-upgrade

sudo dnf install dnf-plugin-system-upgrade

sudo dnf system-upgrade reboot

You can also perform a clean installation of the Fedora 30 by visiting its download page and download the ISO file. Or click the link below:

If you feel like doing so, do give it a try or ask for the help from eRacks Systems’ experts.

May 4th, 2019

Posted In: Fedora, Linux, New products, News, Open Source, Operating Systems, Upgrades

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Ubuntu 18.10, aka ‘Cosmic Cuttlefish’, is available now on all eRacks systems.

 

cosmic_cuttlefish

 

Ubuntu 18.10 ‘Cosmic Cuttlefish’ supported with 9 months of security updates, bug fixes and select app upgrades. Users of it will be able to upgrade to Ubuntu 19.04 when it’s released in April, 2019.

When the release of a new version as Ubuntu 18.10 ‘Cosmic Cuttlefish’, the first question arrives in mind, “What are updated comparing with the current Ubuntu 18.04 LTS version?”

Linux Kernel

 

The most important update in ‘Cosmic Cuttlefish’ is, it has updated Linux Kernel. Ubuntu 18.10 has Linux Kernel 4.18. This Kernel version has some improvements for AMD and Nvidia GPU, USB Type-C and Thunderbolt, and performance optimizations in CPUfreq among several other features.

 

Another important thing is having faster installation and boot with new compression algorithms. Working with new compression algorithms like LZ4 and ztsd, ‘Cosmic Cuttlefish’ is supposed to have around 10% faster boot. The installation will be slightly faster as well. Which is definitely the good news for all Ubuntu users.

 

As always Ubuntu 18.10 will have this new GNOME version. Most of the visual and under the hood changes in GNOME 3.30 will be seen in Ubuntu 18.10 as well.

 

GNOME 3.30

 

Taking cue from Fedora 28, Canonical is also working to improve battery life for laptops. Linux kernel has options to switch HDD controllers, USB controllers and other such devices to a low power state when not in use. This lowers the overall power consumption and thus improves the battery life.

Ubuntu 18.04 was supposed to have a new look with the community developed Community theme. This theme could not be completed in time for the 18.04 release. But Ubuntu 18.10 has it. The ‘Cosmic Cuttlefish’ has the Yaru Community theme installed by default, giving it a ravishing fresh look.

 

Some other changes in the Ubuntu 18.10 ‘Cosmic Cuttlefish’ are as follows:

  • Support for fingerprint scanner.
  • Startup time boost and XDG Portals support for Snap applications.
  • 32-Bit support diminishing from flavors.
  • UI and UX improvements to GNOME Software (possibility).
  • DLNA support for connecting Ubuntu with DLNA supported Smart TVs, tablets and other devices.
  • A new and improved installer (less likely to be completed before 18.10 release).
  • Ubuntu Software removes dependencies while uninstalling software.
  • Ubuntu Software will show a green verified tick for Snap applications developed by the owner of the brand. The same can be found on the recently redesigned Snap store website.

 

Ubuntu 18.10 ‘Cosmic Cuttlefish’ is a modest update compared to 18.04. The vast majority of notable improvements are tucked away out of sight, ‘under the hood’. Ubuntu 18.10 feels faster than 18.04, But you can’t “see” the changes that shape Ubuntu 18.10 ‘Cosmic Cuttlefish’, you almost certainly will feel them.

October 24th, 2018

Posted In: Linux, New products, News, Open Source, Operating Systems, ubuntu

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Fedora 28 is now available on all eRacks systems.

Choose Freedom. Choose Fedora.

    Surprised! Well this tag line is directly from the Fedora 28 official website, a complete Linux based Operating System. Fedora released their ‘Fedora 28 Final version‘ on ‘2018-05-01‘. It is very well known that ‘Fedora’ is always free for anyone to use, modify, and distribute. It is built and used by people across the globe who work together as a community known as ‘The Fedora Project’. Under the tagline Fedora offers,

Less setup, more innovation. Choose a flavor of Fedora
streamlined for your needs and get to work right away.

    Fedora 28 provides software to suit a wide variety of applications. The storage, memory and processing requirements vary depending on usage. For example, a high traffic database server requires much more memory and storage than a business desktop, which in turn has higher requirements than a single-purpose virtual machine.

 

Fedora28

Fedora 28

 

Fedora 28 is offered in 3 different streamlined flavors as,

    As flavor Fedora Workstation is a polished, easy to use operating system for laptop and desktop computers, with a complete set of tools for developers and makers of all kinds.

    Fedora Server is a powerful, flexible operating system that includes the best and latest datacenter technologies. It puts you in control of all your infrastructure and services.

    And Fedora Atomic provides the best platform for your Linux-Docker-Kubernetes (LDK) application stack.

What’s New in Fedora 28!

    It’s a great thing that Fedora 28 Accepted System Wide Changes Proposals and these changes have been made by the Fedora Engineering Steering Committee for the Fedora 28 Release as System Wide Changes.

Fedora 28 Boost 1.66 upgrade

    This change brings ‘Boost 1.66.0’ to Fedora 28. This will mean F28 ships with a recent upstream Boost release.

The aim is to synchronize Fedora with the most recent Boost release. Because ABI stability is one of explicit Boost non-goals, this entails rebuilding of all dependent packages. This has also always entailed yours truly assisting maintainers of client packages in decoding cryptic boost-ese seen in output from g++. Such care is to be expected this time around as well.

AArch64 Server Promotion

    Fedora community promoted Aarch64 server technologies to Primary Architecture status. This would include the Server installer, the DVD installer ISOs, the Cloud (qcow2 images) and Docker base images to the same status as other primary Server architectures. This would NOT currently include other components such as Workstation images/installs, any of the various spins, or Fedora Atomic components.

Though Fedora developers are looking to promote their AArch64 / ARM64 / ARMv8 server offerings to being a “primary architecture” for this next Fedora release but The Fedora AArch64 server installer, Cloud images, and Docker base images would be the same status then as the other primary server architectures like x86_64.

This promotion wouldn’t affect Fedora Workstation 28 with 64-bit ARM not being a primary architecture on that front for the time being. Additionally, it wouldn’t affect Fedora Atomic either.

The Red Hat / Fedora developers are confident in their AArch64 support now and believe on the server front it’s ready to be a primary architecture.

Among the supported AArch64 platforms by Fedora include the 96Boards HiKey, 96Boards Dragonboard, ARM Juno, Rapberry Pi 3, Pine64, and others.

GNOME 3.28

    Fedora 28 will also feature the latest version of GNOME desktop environment, GNOME 3.28. GNOME 3.28 has some improvements to the Calendar, Contacts and Clock apps. The default Cantarell font has been updated as well. Default video and music players of GNOME now support more media formats.

 

GNOME3.28

GNOME 3.28

 

A new Usage application has been introduced in GNOME 3.28 for examining CPU and memory consumption.

You can find the new features in GNOME 3.28 on its official website.

Anaconda modularization

    Anaconda installer splits into several modules those communicate over DBus using stable API.

 

Anaconda modularization

Anaconda Modularization

 

When talking about the Fedora/RedHat Anaconda installer it still brings back bad memories from the Anaconda fallout a few years ago when they went through some painful transitions that also led to release delays. In 2018, Fedora/RedHat developers are taking up the initiative of modularizing the Anaconda installer.

For the Fedora 28 release due out this spring, the plan is to split the Anaconda installer into several modules that in turn will communicate with eachother using a DBus API. The modularization effort sounds nice as long as it goes smoothly and doesn’t lead to any fallout like with past Anaconda overhaul initiatives (though admittedly Anaconda has been playing nicely the past number of releases and no complaints on my end currently).

Annotated Binaries

    This change causes extra information to be stored in binary files compiled by gcc. This information can be used by scripts to check on various features of the file, such as the hardening options used or potential ABI conflicts.

A new feature being considered for Fedora 28 is Annobin as a new GCC plugin that would implant extra information into generated binaries.

The GCC Annobin plugin would store extra information within binary files. Among the possibilities are storing ABI details, hardening options, or other build information into binaries that in turn could be picked up by used by other scripts for e.g. detecting potential ABI conflicts or embedding unit test results.

Annobin stores information in Fedora’s toolchain watermark format and currently this plugin is just for GCC.

The proposal for incorporating Annobin by default in Fedora 28 is outlined on the Fedora Wiki while this change more broadly outlines their toolchain watermark work.

Already this proposal has received some criticism, namely that embedded extra information into binaries will increase the file size but this embedded information isn’t relevant to all users, so perhaps it may be better kept into the debug-type builds.

Cloud-base and Container images for s390x

    This change is to bring s390x architecture closer to other Fedora architectures by adding widely used Fedora variants. This includes container images and Cloud-base images (qcow2 and raw format).

Deprecate TCP wrappers

    TCP wrappers is a simple tool to block incoming connection on application level. This was very useful 20 years ago, when there were no firewalls in Linux. This is not the case for today and connection filtering should be done in network level or completely in application scope if it makes sense. After recent discussions I believe it is time to go for this package, if not completely, then at least as a dependency of modern daemons in system by default.

Add-On Modularity

    Beginning in Fedora 28, Fedora will provide a new set of repositories for software and updates with alternative versions from those shipped in the default release.

Improved Laptop Battery Life

    No more manual tweaks! Fedora 28 will deploy several tweaks on its own to provide improved battery life. Improve Fedora (Workstation) Battery Life by enabling various hardware power-saving features by default.

 

Improved Laptop Battery Life

Improved Laptop Battery Life

 

    Fedora 28 will have the following power management tweaks:

  • Enabling auto-suspend for Intel HDA codecs saves around 0.4 W.
  • Enabling SATA ALPM by default saves up to 1.5 W.
  • Enabling i915 Panel Self Refresh by default saves around 0.5 W.

With these tweaks in place, some laptop models will see up to 30% of battery life improvements. While ‘power users’ can do these tweaks manually and achieve the same result, the idea is to provide an out of the box experience to every Fedora user. Indeed, a good thinking there.

Drop TCP wrappers support, OpenLDAP defaults to use only Shared System Certificates

    TCP wrappers are being deprecated in Fedora. Also, upstream discourages its usage in favour of other means of protection (e.g. firewall). After this change OpenLDAP will no longer be affected by TCP wrappers configuration.

In order to go forward with adoption of SharedSystemCertificates after this change OpenLDAP clients and server will default to use only the system-wide certificates store.

Switch OpenLDAP from NSS to OpenSSL

    Currently, OpenLDAP in Fedora is compiled with NSS (aka MozNSS) for crypto. OpenLDAP is going to be compiled with OpenSSL, instead.

Reduce Initial Setup Redundancy

    Currently there is a high level of redundancy between the Anaconda installer and gnome-initial-setup. This change aims to eliminate these redundancies and streamline the initial user experience in Fedora Workstation.

To make Fedora more beginner friendly, Fedora 28 Workstation will have fewer ‘questions’ to answer at the install time. There will be no root password anymore and the user password itself will be sufficient for the root actions, same as Ubuntu.

There will be some more code changes to reduce the redundancy between Anaconda installer and gnome-initial-setup.

Ruby 2.5

    Ruby 2.5.0 is the latest stable version of Ruby. Many new features and improvements are included for the increasingly diverse and expanding demands for Ruby. With this major update from Ruby 2.4 in Fedora 26 to Ruby 2.5 in Fedora 28, Fedora becomes the superior Ruby development platform.

 

Ruby 2.5.0

Ruby 2.5.0

 

Packaging Rust applications/libraries

    Added required tools/instructions for packaging applications/libraries written in Rust. Rust is a systems programming language that runs blazingly fast, prevents segfaults, and guarantees thread safety.

Enabling Python Generators

    This change enables the ability to choose to use the Python module dependency generator for packages that provide Python Egg/Wheel metadata.

Django 2.0

    This change is about upgrading python-django to version 2.0. The latest Django release drops support for Python 2, but a few Django apps packaged in Fedora do not yet support Python 3. A compatibility package will be provided for those.

 

Python 3.6 + Django2.0 on Fedora 28

Python 3.6 + Django2.0 on Fedora 28

 

Kerberos in Python modernization

    Replace usage of python-krbV and pykerberos with python-gssapi in all Fedora packages to enable their removal from Fedora. rharwood will author all necessary code changes; no new code from maintainers is required.

VirtualBox Guest Integration

    VirtualBox is popular, easy to use virtual-machine software. The purpose of this change is to ship the VirtualBox guest-drivers and -tools by default in the Fedora workstation product.

Fedora 28 will see the addition of guest-drivers to the Fedora kernel package, packaging the userspace-tools (VirtualBox Guest Additions) and adding the VirtualBox Guest Additions package to the default package list for the Workstation product.

This means using Fedora in VirtualBox will have a better experience.

Stratis Storage

    Add initial support for Stratis, a local storage management solution. This will allow initial testing and user feedback that will guide Stratis’s development and stabilization.

VA-API 1.0.0

    This change is about upgrading libva and others to version 2.x. This change affects several multimedia players as there are both API and ABI changes. This will allow some VA-API backends to be updated, improving support for recent hardware.

librealsense2

    A new version of librealsense has been released, which does not support older camera versions. Bump librealsense to the new release and add the old library as librealsense1.

java-openjdk 10 – rolling release for Short Term Support releases of OpenJDK

    OpenJDK have release cadence of 6 months. but 3/4 of them are Short Term Supported for 6 months only. This package is designed to harbore them. Currently it is built on openJDK 10. LTSs (next is 11) will go as separate packages.

PHP 7.2

    Update the PHP stack in Fedora to latest version 7.2.x.

    Including these Engineering Steering Committee also made others important change as

  • GCC8
  • GHC 8.2
  • The GNU C Library version 2.27
  • Glibc collation update and sync with cldr
  • Hardening Flags Updates for Fedora 28
  • IBus Unicode Typing
  • Switch libidn-using applications to IDNA2008
  • NIS switching to new libnsl to support IPv6
  • NSS Default File Format SQL
  • Rename “nobody” user
  • Replace glibc’s libcrypt with libxcrypt
  • Strong crypto settings: phase 1
  • Removal of Sun RPC Interfaces From glibc
  • Golang 1.10
  • Switch libcurl to use libssh instead of libssh2
  • A new time tool version 1.8 has changed output format.
  • Make authselect default tool instead of authconfig
  • Binutils version 2.29.1
  • Update Erlang/OTP to version 20.
  • Update fontconfig package to Fontconfig 2.13 as latest version.
  • Update the giflib package to the latest giflib-5.x version (currently 5.1.4).
  • Update Sugar to the new upstream 0.112 stable feature release.
  • Enabled Thunderbolt 3 peripherals in a secure way hardware out of the box.

 

 

NAS6

eRacks/NAS6

Get your Systems as per-configured with Fedora 28 or with any other Open Source Operating System from eRacks Store.

 

 

Minimum System Configuration for Fedora 28

    The figures below are a recommended minimum for the default installation. Your requirements may differ, and most applications will benefit from more than the minimum resources.

  • 1GHz or faster processor
  • 1GB System Memory
  • 10GB unallocated drive space

Low memory installations

    Fedora 28 can be installed and used on systems with limited resources for some applications. Text, VNC, or kickstart installations are advised over graphical installation for systems with very low memory. Larger package sets require more memory during installation, so users with less than 768MB of system memory may have better results preforming a minimal install and adding to it afterward.

 

Installation Fedora 28

Installation Fedora 28

 

Note:For best results on systems with less than 1GB of memory, use the DVD installation image.

Display resolution

    Graphical Installation requires 800×600 resolution or higher

Graphical installation of Fedora requires a minimum screen resolution of 800×600. Owners of devices with lower resolution, such as some netbooks, should use text or VNC installation.

Once installed, Fedora will support these lower resolution devices. The minimum resolution requirement applies only to graphical installation.

Minimum Hardware for Accelerated Desktops

    Fedora 28 supports most display adapters. Modern, feature-rich desktop environments like GNOME3 and KDE Plasma Workspaces use video devices to provide 3D-accelerated desktops. Older graphics hardware may not support acceleration:

  • Intel prior to GMA9xx
  • NVIDIA prior to NV30 (GeForce FX5xxx series)
  • Radeon prior to R300 (Radeon 9500)
  • CPU Accelerated Graphics

Systems with older or no graphics acceleration devices can have accelerated desktop environments using LLVMpipe technology, which uses the CPU to render graphics. LLVMpipe requires a processor with SSE2 extensions. The extensions supported by your processor are listed in the flags: section of /proc/cpuinfo

Choosing a Desktop Environment for your hardware

    Fedora 28’s default desktop environment, GNOME3, functions best with hardware acceleration. Alternative desktops are recommended for users with older graphics hardware or those seeing insufficient performance with LLVMpipe.

Desktop environments can be added to an existing installation and selected at login. To list the available desktops, use the dnf grouplist command:

# dnf grouplist -v hidden | grep desktop

Install the desired group:

# dnf groupinstall “KDE Plasma Workspaces”

Or, use the short group name to install:

# dnf install @mate-desktop-environment

 

 

Get Fedora 28

    If you want to have your system pre-configured with Fedora 28, simply choose as your Fedora Linux 28 Workstation / Server or Atomic for your “Operating System’ option with eRacks/FLASH10 or with any other system from eRacks Store. You Could call or email us for the configuration details. We do cover your requirements with our systems.

 

eRacks/FLASH10

eRacks/FLASH10

 

    Or, Fedora 28 is available to download in ISO format from here. It is available in various flavors mainly Fedora 28 Workstation for desktops, Fedora 28 Server for servers and Fedora 28 Atomic for containers.

May 8th, 2018

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    Fedora (formerly Fedora Core) is a Unix-like operating system based on the Linux kernel and GNU programs (a Linux distribution), developed by the community-supported Fedora Project and sponsored by the Red Hat company. Fedora contains software distributed under various free and open-source licenses and aims to be on the leading edge of such technologies. Fedora is the upstream source of the commercial Red Hat Enterprise Linux distribution.

Since the release of Fedora 21, three different editions are available: Workstation, focused on the personal computer, Server and Cloud for servers, and Atomic being the edition meant for cloud computing. As released on July, 11, 2017 they introduced Fedora 26!

fedora26

Fedora 26 has arrived with thousands of improvements to development tools, partitioning tools, better caching of user and group information, better debugging, an improved DNF package manager, and so much more.

Let’s see some of many upgraded System Requirements & features, those are new Fedora 26 offering.

Minimum System Requirements

Fedora 26 provides software to suit a wide variety of applications. The storage, memory and processing requirements vary depending on usage. For example, a high traffic database server requires much more memory and storage than a business desktop, which in turn has higher requirements than a single-purpose virtual machine. Your requirements may differ, and most applications will benefit from more than the minimum resources.

Fedora 26 recommended minimum System Configuration for the default installation are as follows:

  • 1GHz or faster processor
  • 1GB System Memory
  • 10GB Usable Drive Space

Fedora 26 can be installed and used on systems with limited resources. Text, VNC, or kickstart installations are advised over graphical installation for systems with very low memory. Larger package sets require more memory during installation, so users with less than 768MB of system memory may have better results preforming a minimal install and adding to it afterward.

For best results on systems with less than 1GB of memory, one should use the DVD installation image. Fedora also give us some guidelines for it’s best practices and performances.

  • Graphical installation of Fedora requires a minimum screen resolution of 800×600. Owners of devices with lower resolution, such as some netbooks, should use text or VNC installation. Once installed, Fedora will support these lower resolution devices. The minimum resolution requirement applies only to graphical installation.

  • Fedora 26 supports most display adapters. Modern, feature-rich desktop environments like GNOME3 and KDE Plasma Workspaces use video devices to provide 3D-accelerated desktops. Systems with older or no graphics acceleration devices can have accelerated desktop environments using LLVMpipe technology, which uses the CPU to render graphics. LLVMpipe requires a processor with SSE2.

 

Features

Fedora 26 offers latest GNOME 3.24, LibreOffice 5.3, Fedora Media Writer, Improved Qt app compatibility & so on…

GNOME 3.24

gnome-3-24

Newest version of the GNOME desktop now has a Natural Light Filter feature that changes display’s color temperature. It works based on the time of day and helps prevent sleeplessness and eye strain. Also, there are updates to the Settings panel for online accounts, printers, and users. The notifications area sports a cleaner, simpler layout, with integrated weather information.

For developers, Builder now features improved support for systems like Flatpak, CMake, Meson, and Rust. It also integrates Valgrind to help profile your project. There are numerous other improvements, which you can find in the GNOME 3.24 release notes.

 

LibreOffice 5.3

The latest version of the popular office suite features many changes. It includes a preview of the experimental new NotebookBar UI. There’s also a new internal text layout engine to ensure consistent text layout on all platforms.

 

Fedora Media Writer

The new version of the Fedora Media Writer can create bootable SD cards with Fedora for ARM devices such as Raspberry Pi. It also features better support for Windows 7 and screenshot handling. The utility also notifies you when a new release of Fedora is available.

 

Improved Qt app compatibility

The Adwaita theme contains many improvements and looks closer to its GTK counterpart than ever. There are also two variants ported to Qt, dark and high contrast. If you switch to dark or high contrast Adwaita, your Qt apps will switch as well.

 

            Matthew Miller, Fedora Project Leader, wrote in a Fedora Magazine post about Fedora 26. As he wrote “First, of course, we have thousands of improvements from the various upstream software we integrate, including new development tools like GCC 7, Golang 1.8, and Python 3.6. We’ve added a new partitioning tool to Anaconda (the Fedora installer) — the existing workflow is great for non-experts, but this option will be appreciated by enthusiasts and sysadmins who like to build up their storage scheme from basic building blocks. F26 also has many under-the-hood improvements, like better caching of user and group info and better handling of debug information. And the DNF package manager is at a new major version (2.5), bringing many new features. Really, there’s new stuff everywhere — read more in the release notes.”

 

Among the current Fedora users, most of may wish to go straight for the clean install—which makes perfect sense and always winds up with a reliable and stable instance.

As with release of latest version of Fedora, we offer latest Fedora 26 with our systems as pre-configured according to your custom quote…

July 15th, 2017

Posted In: Fedora, News, Open Source, Operating Systems

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Mozille BrowserID / Persona Dies

A Sad Day – Mozille BrowserID / Persona Dies

It’s a sad day – the best of the federated Authentication Providers, without its own agenda or privacy issues, has shut down, due to the public’s apparent lack of interest and / or awareness.

Mozilla Persona, which started life several years ago as BrowserID, was the only one of the OpenAuth-based Authentication providers that didn’t insist on being logged in to a commercial site in order to be authenticated by proxy at the time – with all the privacy issues that entails.

Although it’s no secret that The Public is notorious for not caring about (or not even being aware of) privacy (or at least sacrificing it in favor of convenience), it’s unfortunate that the Mozilla Foundation has chosen not to spend the time, effort, and money to educate the public, as it has chosen to do with its other products.

Here are some relevant excerpts from the shutdown page:

FAQs

A website I use requires Persona for login, what should I do?

You will need to contact the site owner and ask about their plans for migrating away from Persona.

Mozilla staff can find more information about the progress of migrating internal sites on this mana page.

Why is persona.org being shut down?

Our metrics show that usage of persona.org is low, and has not grown over the last two years.

Hosting a service at the level of security and availability required for an authentication system is no small undertaking, and Mozilla can no longer justify dedicating limited resources to this project. We will do everything we can to shut it down in a graceful and responsible manner.

What will happen in the meantime?

Between now and November 30th, 2016, Mozilla will continue to support the Persona service at a maintenance level: Security issues will be resolved in a timely manner and the services will be kept online, but we do not expect to develop or deploy any new features. Support will continue to be available on the dev-identity mailing list and in the #services-dev IRC channel.

All websites that rely on Persona will need to migrate to another means of authentication during this time.

What happens after that?

On or after November 30th, 2016, the services hosted by Mozilla on persona.org will be taken offline. This includes the persona.org website, the javascript shim, the fallback IdP and identity bridges, and the hosted verifier.

Mozilla will retain control of the persona.org domain and will not transfer it to a third party. This is a security measure to protect websites that have not completed their migration away from the service.

All user data stored on the persona.org services will be destroyed, including registered email addresses and password hashes. Since the privacy of user data is of utmost importance to Mozilla, we will not transfer it to any third parties.

What about the code?

All of Persona’s code — core, bridges, shims, and more — is open source and remains available on github. Though this marks the end of Mozilla’s direct involvement in Persona, we encourage others to continue learning from and building upon our work.

Migration Suggestions and Guidelines

The following alternative login options are available for sites migrating away from Persona. We will continue to update this page throughout the year.

We intentionally designed Persona to expose email addresses rather than opaque identifiers, which should ease the transition to other systems that provide verified email addresses.

Mozilla-hosted sites may find additional, staff-login-specific migration options on the internal mana page.

Delegated Authentication Providers

Many large email and service providers offer delegated login for third-party applications, including Google, Facebook and GitHub. Indeed, we have found that many sites currently using Persona also offer login via one or more of these services. While these services do not offer equivalently-strong privacy guarantees to Persona, they are a convenient and secure choice for users since they avoid the creation of a site-specific password.

We plan to offer delegated authentication with Firefox Accounts some time in 2016. If you’re interested in adding Firefox Accounts as a login option to your site, please reach out to us on the dev-fxacct mailing list.

Site-Specific Accounts

Many web frameworks offer password-based user accounts functionality out-of-the-box. Although it requires users to create and remember yet another password, it can be a good choice for users who do not have (or do not wish to share) an account with a delegated authentication provider.

For existing users who previously authenticated with Persona, you could consider authenticating them through Persona again to confirm their email address, then prompting them to create a site-specific password.

Passwordless Email Login

As an alternative to setting a site-specific password, you can allow users to login directly via email link, as described in this article and implemented by libraries like passwordless. This can avoid the security implications of users having to create and manage another password, and may be a good fallback option when used in combination with delegated authentication providers.

Self-hosting Persona

Since the code for Persona is open-source, it would be possible for reliers to self-host an instance of the service that is dedicated to their own use.

This approach is not recommended most reliers. Persona has a large and complex codebase that has not seen significant development in several years, and Mozilla will not provide security or maintenance updates after 30th November 2016.

More?

We encourage affected reliers to document any alternative solutions here and to discuss them on the dev-identity mailing list, so that others can benefit from their experience.

  • The Portier open source project attempts to replicate much of Persona’s user experience, while being easy to self-host, even on the free tier of PaaS providers like Heroku. Similar to Persona, Portier supports identity-bridging to Gmail. It falls back to passwordless-style login links for everyone else.

Taken from:

https://wiki.mozilla.org/Identity/Persona_Shutdown_Guidelines_for_Reliers

 

We at eRacks wil be looking into Portier for our own usage, as well.

j

January 9th, 2017

Posted In: authentication, News, Open Source

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cinnamon-mint-18Linux Mint 18 is now available!

Based on Ubuntu 16.04, which was made available in April, this release of Mint is based on the LTS release of Ubuntu, rather than following the twice-yearly updates – and will have only incremental changes and updates over the next 2 years – thus being more stable and predictable, and avoiding any potential instabilities introduced by the biannual Ubuntu upgrades.

So Mint 18 should now be available in all the eRacks product dropdowns – if you don’t see it on the model you want, please contact us and we’ll fix it or give you a custom quote with Mint 18.

As always, contact us at info@eracks.com for any inquiries or questions regarding the Mint 18 release, or any of our products, and what release we recommend for you and your unique needs.

j

August 3rd, 2016

Posted In: Linux, Mint, News, ubuntu, Upgrades

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Introducing eRacks/ZENBOOK15.UHD 4D resolution, high power Ultrabook with Linux or BSD operating system

Introducing eRacks/ZENBOOK15.UHD 4D resolution, high power Ultrabook with Linux or BSD operating system

We wanted to start the month in style. So, we thought what better way there is than introducing a great looking Ultrabook with powerful specification?   Then the light bulb went on: “eRacks/ZENBOOK15.UHD”.

This really stylish and elegant eRacks/ZENBOOK15.UHD laptop that comes with a screen resolution of 3840 by 2160 — four times FHD (full high-definition) resolution – really started looking mighty good.

This Ultrabook by Asus can be delivered by eRacks with up to 24 Gigabytes of RAM and up to 1 or even 2 Terabytes of SSD hard disk space. With its 15.6 inch 4K Ultra High Definition IPS screen and a view angle of about 170 degrees, eRacks/ZENBOOK15.UHD is really a great looking and powerful Ultrabook.

As with all eRacks Systems products, this elegant looking Ultrabook will be delivered with your choice of Open Source operating system & software pre-installed and pre-configured. The operating system can be any flavor of Linux or BSD (We can even do other OSes like Haiku, etc on request). We will install and configure the OS fully before packaging your Ultrabook and sending it off your way.

In fact, you can be sure that with your Ultrabook ordered through us, you will receive a powerful open source system, configured to the highest specifications according to your requirements. And you can also be sure that no one else can or will offer anything close to the laptop you will get from us.

So, why not expand your laptop computing power to the next level with us. Contact us and ask about eRacks/ZENBOOK15.UHD. We’ll be happy to hear from you.

info@eracks.com

October 8th, 2015

Posted In: FreeBSD, Laptop cookbooks, New products, News, Products, Upgrades, Zenbook

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eRacks/NAS50 Half Petabytes of Data Storage Server / Cloud Storage

eRacks/NAS50 Half Petabytes of Data Storage Server / Cloud Storage

We were extremely excited to announce the forthcoming release of 500 Terabyte (half Petabyte) storage space upgrade on our flagship product eRacks/NAS50 cloud data storage servers last week.  The new model, to be released shortly, will incorporate 50 HGST 10 Terabyte HelioSeal™ hard drives.  While the new model is not released yet, we are accepting pre-orders from customers.  The current capacity, now available, of the eRacks/NAS50 is 400Terabytes in total, with currently-available 8Terabyte drives.

The new unit is rackmount and holds 50 removable drive bays.  The 9U unit is suitable for any cloud storage application as well as NAS/Local LAN.  eRacks/NAS50™ is also a great solution for media libraries and other applications which require massive amounts of data storage capacity.

Our new servers are truly a remarkable Petascale solution.  The HGST 10 Terabyte HelioSeal™ drives that come with eRacks/NAS50 use two technologies that greatly add to the value that this server carries with it, including other server services from sites as https://www.servermania.com/kb/articles/what-are-the-requirements-for-ubuntu-server/ for ubuntu projects.

The first is referred to as the HelioSeal™ technology.   The HGST hard drives using this technology replace the air inside of the drive with helium.  This would make the drive much lighter as well as allowing the disks to be much thinner.   Due to the helium inside, the thinness of disks will not cause any disruptive turbulence effects.  This will allow us to have more disks inside each drive which in turn means more data space.  Additionally, helium drives have much lower power consumption, as much as 27%, making our NAS50 models truly a green product.

The new drives in the eRacks/NAS50 servers also make use of a technology called SMR.  That is short for Shingled Magnetic Recording.  This technology by itself adds another 25 to 100 percent storage capacity to HGST hard drives.

We are proud of our new eRacks/NAS50 and are ready to take pre-orders.  We are prepared to customize the unit per your instructions with all Open-Source software necessary so your order will reach you completely pre-installed.

Please contact us for pre-orders or any questions you may have.

eRacks Open Source Systems
Phone: (714) 758-5423
Fax: (631) 392-9842
http://www.eRacks.com
eMail: info@eracks.com

September 12th, 2015

Posted In: NAS50, New products, News, Open Source, servers, Upgrades

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With the recent release of Fedora 22, eRacks now offers this new operating system on servers, desktops, and laptops. Just select it from the drop-down menu when customizing your computer.Fedora_22

June 30th, 2015

Posted In: Fedora, News

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