By: Erico Mendonca

December 7, 2018 1:59 pm

574 views

KVM networking: a simple way to manage port forwards and configuration

QEMU/KVM offers powerful networking features, including the ability to create many kinds of networks for your VMs. These can be either an isolated network, a NAT network, or a bridge. There are built-in services that can be configured to serve DNS and DHCP (including PXE support), so you do not need to bother maintaining these […]

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Lawrence Kearney
By: Lawrence Kearney

November 27, 2018 2:06 am

781 views

Deploying SLURM PAM modules on SLE compute nodes

Security in High Performance Computing (HPC) environments has always been a proposal of relativity. Striking a balance between implementing an adequate level of security and not interfering with “getting the science done”. In the simplest terms the primary security realms HPC systems and clusters are exposed to are environmental and user facing. More specifically […]

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andrewsteggles
By: andrewsteggles

October 31, 2018 1:20 pm

733 views

Do You Need to Market your Open Source Project?

It’s an interesting question and one that I was asked to tackle recently at the Open Source Summit event in Scotland. Let’s first talk about what we mean by marketing. The Chartered Institute of Marketing defines marketing as "the management process responsible for identifying, anticipating and satisfying customer requirements profitably”. Philip Kotler, […]

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Alexander Bergmann
By: Alexander Bergmann

October 4, 2018 2:03 pm

1,141 views

DNSSEC – Root Zone KSK Rollover (11th of October)

In just one week from now it will be the first time that the DNS Root Zone Key Signing Key (KSK) will be rolled over and replaced with a new key. This long planed procedure was actually planed one year ago, but postponed because of data that suggested that a significant number of resolvers where […]

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bmwiedemann
By: bmwiedemann

August 29, 2018 2:23 pm

1,413 views

Extending trust in our binaries: No backdoors have been found

I have written earlier on the advantages of reproducible builds One of the advantages of reproducible builds is that it allows to verify, that no backdoors have been added into a binary at build time. For that, you just have to build the same source with the same toolchain on your trusted machine. If the […]

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Flavio Castelli
By: Flavio Castelli

August 14, 2018 2:45 pm

2,086 views

Hackweek project: Docker registry mirror

As part of SUSE Hackweek 17 I decided to work on a fully fledged docker registry mirror. You might wonder why this is needed, after all it’s already possible to run a docker distribution (aka registry) instance as a pull-through cache. While that’s true, this solution doesn’t address the needs of more […]

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mvarlese
By: mvarlese

August 7, 2018 7:27 am

1,266 views

Accelerate your network with OvS-DPDK

Introduction First of all, to set some expectations to you, this blog-post does not focus on what DPDK or OpenVSwitch (OvS) are but it tries to provide the information required to have them running on a SUSE distribution. If you require detailed information about DPDK or OvS design, architecture, internals or API then please refer […]

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Lawrence Kearney
By: Lawrence Kearney

July 16, 2018 3:22 am

2,177 views

Deploying SLURM using SLE HPC patterns

The expansion of High Performance Computing (HPC) beyond the niches of higher education and government realms to corporate and business computing use cases has been on the rise. One catalyst of this trend is increasing innovation in hardware platforms and software development. Both respectively drive down the cost of deploying supercomputing services with each iteration […]

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Alexander Bergmann
By: Alexander Bergmann

June 27, 2018 1:31 pm

2,261 views

Secure Boot Network Installation

1. Preboot Execution Environment (PXE) We have to start with the standard PXE setup that is used for decades for disk-less client bootstrapping. The client requests an IP address and gets it together with the information where to find a boot file that can be loaded via TFTP. In our case the network connection is […]

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bmwiedemann
By: bmwiedemann

June 26, 2018 9:32 am

3,515 views

reproducible builds in openSUSE and SLE

If you have been watching the news during the last 2-3 years, you might occasionally have heard about reproducible builds.   What are reproducible builds? The reproducible-builds project says “Reproducible builds” aim to provide a verifiable path from software source code to its compiled binary form. In its simplest form it means, that […]

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