Two boxes have been setup , each one having 2 NICs (enp2s0,enp5s1) for Controller && Compute Nodes setup. Before running `packstack --answer-file=TwoNodeVXLAN.txt` SELINUX set to permissive on both nodes.Both enp5s1's assigned IPs and set to promiscuous mode (192.168.0.127, 192.168.0.137 ). Services firewalld and NetworkManager disabled, IPv4 firewall with iptables and service network are enabled and running. Packstack is bind to public IP of interface enp2s0 192.169.1.127, Compute Node is 192.169.1.137 ( view answer-file ).

Hardkernel launched a $30, 60 x 36mm Raspberry-Pi compatible “Odroid-W” wearables oriented SBC, adding eMMC, ADC, RTC, a fuel gauge, and step converters. Hardkernel’s Odroid project developed the Odroid-W (Odroid-Wearable) for a partner’s Internet of Things prototyping platform, after first considering and dismissing its quad-core Odroid-U3 single board computer. The Odroid-U3, which was rated as the third most popular Linux hacker SBC in our recent survey, used too much power for use as an IoT and wearables platform. The Raspberry Pi was more power efficient, but too large. No doubt, RPi compatibility also had its attractions, as the project ended up building its own Raspberry Pi pseudo-clone implemented on a COM (computer-on-module) style form factor.

I've spent the last couple of months working an internship for The Linux Foundation, doing research on new developments and adoption trends in the open source industry. If you have spent any amount of time reading about open source over the last year, you have probably heard about Docker; a lot of people are talking about it these days and the impact it's going to have on virtualization and DevOps.read more

Recently, I have been using what will become Fedora 21 as my day-to-day machine, (side note: I have found it to be pretty stable for pre-release software). One really nice […]

The simple install that will give your office network a complete Windows-compatible server

They say you never forget your first computer. For some of us, it was aCommodore 64 or an Apple IIe. For others, it was a Pentium 233 runningWindows 95. Regardless of the hardware, the fond memories of wonder andexcitement are universal. For me, I'll never forget the night my fatherbrought home our first computer, a Tandy 1000.

Cloud, enterprise and security Linux distributions all get updates.

Everybody’s talking about privacy and anonymity on the Internet these days, and many people are concerned with their apparent demise.

The third day of GUADEC was mostly devoted to lower level parts of the GNOME stack. There were talks on GTK+, CSS, Wayland, and WebKitGTK+, but also an annual general […]

When I was in journalism school back in the late 1980s, gathering data for a story usually involved hours of poring over printed documents or microfiche.A lot has changed since then. While printed resources are still useful, more and more information is available to journalists on the web. That’s helped fuel a boom in what’s come to be known as data journalism. At its most basic, data journalism is the act of finding and telling stories using data—like census data, crime statistics, demographics, and more.read more

Hybrid RAID 1 (Mirror) of RAM drive & SATA HDD Using LVM with LUKS [and systemd unit file] on Fedora LinuxThe IT industry has a continual balance between security and usability. Within this balance, performance usually affects usability. In the realm of protecting "Data at Rest" (i.e. encryption) one may find three factors affecting performance, and therefore usabilty: The harddrive, CPU and RAM. Of these, the harddrive will always prove to be a bottleneck (yes, even with an SDD).Free Software has a rather elegant solution for protecting Data at Rest, called Linux Unified Key Setup (LUKS). In the spirit of "Freedom 0: The freedom to run the program for any purpose." please enjoy my contribution to our collective knowledgebase of a solution to the fascinating problem of "how can we speed up encyption"?

Lightweight, container-happy Linux gets first Stable releaseThe developers behind the stripped-down CoreOS Linux distribution have pushed version 367.1.0 to the Stable release channel, marking the first time the project has delivered a production-ready release.…

The developers behind the stripped-down CoreOS Linux distribution have pushed version 367.1.0 to the Stable release channel, marking the first time the project has delivered a production-ready release. Unlike other Linux distros, CoreOS is a minimal OS that ships each new version as a single unit, rather than updating individual software packages. Updates are pushed to users via "channels," similar to how web browser vendors deliver their releases.

The idea of a new version of Firefox will sound like a bad joke to some. To others, it’s a yawn – Firefox comes at the blistering pace of one new version every six weeks.…

The open-source CoreOS Linux operating system hit a major milestone on July 25, issuing its first stable release. CoreOS is an Andreessen Horowitz-backed startup that offers the promise of a highly available operating system platform that is fully integrated with the Docker container virtualization technology.

Attackers have figured out a new way to get Amazon's cloud service to wage potent denial-of-service attacks on third-party websites—by exploiting security vulnerabilities in an open source search and analytics application known as Elasticsearch.

Interested in keeping track of what's happening in the open source cloud? Opensource.com is your source for what's happening right now in OpenStack, the open source cloud infrastructure project.

Plasma 5, released last week, is a major redesign of the Unix KDE desktop environment and underlying frameworks. Perhaps the most notable difference is the visual changes, which see KDE embracing a more streamlined, "flat" interface, but it's also the first version of KDE to be powered by Qt 5 and the recently released KDE Frameworks 5.

Rackspace will now officially support the relational database storage platforms from MariaDB and Percona, which are forked from Oracle MySQL. In a move that will please devotees of open source cloud storage, hosting giant Rackspace (RAX) has announced it will officially support two additional types of open source MySQL databases, from MariaDB and Percona.

Even Microsoft wants a piece of the development board market made famous by Arduino and Raspberry Pi...At $300, Sharks Cove is significantly more expensive than non-Windows alternatives. Hobbyists will probably be more inclined to buy the ARM-based Raspberry Pi, which is just $35, or the $55 BeagleBone Black. Even the Intel-based MinnowBoard, which is compatible with Linux and Android, starts at just $99. CircuitCo also makes both the BeagleBone Black and MinnowBoard.