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by Andreas Bussjaeger

ELBv2 DR-Mode GUIDE

<h2>Overview</h2> <p><a href="https://open-telekom-cloud.com/">Open Telekom Cloud</a> (OTC) Release 3.1 provides a completely new "Elastic LoadBalancer Version 2" (ELBv2) which includes a lot of new features (see comparison table) and provides better performance. It was activated for the public OTC production environment (eu-de) in early September 2018.</p>
by Matthias Rechenburg

Guide for using Infiniband on OTC

<p>A quick guide how to use Infiniband on the Open Telekom Cloud</p> <ol> <li>Create 2 ECS with H1 or H2 flavor using the RHEL7 public image</li> </ol> <p><img alt="" src="/user/pages/01.home/guide-for-using-infiniband-on-otc/OTC-Infiniband-howto1.png" /></p>
by Sabrina Mueller & Daniela Ebert

New OTC ubuntu images build from OTC ImageFactory

<p><img alt="" src="/user/pages/01.home/new-otc-ubuntu-images-build-from-otc-imagefactory/OTC.png" /></p> <h2>Introduction</h2> <p>Currently OTC offers ubuntu images for ubuntu trusty and xenial.\ Found as public images in OTC Image Management Service.</p> <blockquote> <pre><code>trusty: Community_Ubuntu_14.04_TSI_latest xenial: Community_Ubuntu_16.04_TSI_latest</code></pre> </blockquote> <p>These images are directly delivered by Canonical to OTC with some base customization for OTC platform.</p>
by Kurt Garloff

Security Advisory about Processor Speculation Leaks (Meltdown & Spectre)

<p><img alt="" src="/user/pages/01.home/meltdown-spectre/meltdown-spectre-kernel-vulnerability.jpg"></p> <p><sup>Reference: i0.kym-cdn.com</sup></p> <p>Info: Open Telekom Cloud Security Advisory about Processor Speculation Leaks (Meltdown/Spectre)</p> <p>Version: 2.1</p> <p>Date: 2018-08-17</p> <h2>About This Article</h2> <p>On 2018-01-04, security researchers published findings that uncovered how contemporary Processors (CPUs) leak protect...</p>
by Kurt Garloff <kurt.garloff@t-systems.com> & Daniela Ebert <d.ebert@t-systems.com>

New Linux image naming and registration policies

<p><img alt="" src="/user/pages/01.home/new-linux-image-naming-and-registration-policies/OTC.png" /></p> <h2>Introduction</h2> <p>Currently, for each Linux image, there are two series of images, one with a datestamp (e,g, <code>_20180106_0</code>) and one with a <code>_latest</code> name which gets renamed to <code>_prevN</code> and hidden upon a new <code>_latest</code> image registration. We have followed a roughly monthly update schedule (aligning with the Windows world) for the datestamp images and the <code>_latest</code> images while pushing out additional <code>_latest</code> images in between occasionally based on major improvements, bug fixes or security issues.</p>