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Eight months after three critical vulnerabilities were fixed in the memcached open source caching software, there are over 70,000 caching servers directly exposed on the internet that have yet to be patched. Hackers could execute malicious code on them or steal potentially sensitive data from their caches, security researchers warn.

MesosCon is an annual conference that brings together users and developers to share and learn about the project and its growing ecosystem. The conference will feature two days of sessions to learn more about the Apache Mesos core and related technologies. The Call For Papers (CFP) for MesosCon Europe is closing soon! Submit your proposal by July 28 for consideration.

Onion announced two surface-mount spin-offs of the WiFi-enabled Omega2 module, which runs Linux on a MediaTek MT7688 SoC, and unveiled a new dev board. A year after launching its second-gen Omega2 computer-on-module, which advanced from a 400MHz Atheros AR9331 to a similarly MIPS-driven 580MHz MediaTek MT7688, Onion Corp. has revised the Omega2 with two surface […]

Graylog is a free and open source log management tool based on Java, Elasticsearch and MongoDB that can be used to collect, index and analyze any server log from centralized location. You can easily monitor the SSH logins and unusual activity for debugging applications and logs using Graylog.

Akademy has had its first full day of BoFs, group sessions discussing our plans for the next year. The wrapup session has just finished so watch the video to find out about what Plasma devs are working on, what tutorials happened and how we avoided a fist fight to the finish. Your browser does not support the video tag, download Monday wrapup video.

The academic year is firing back up soon, so you'll be seeing more education articles on Opensource.com in the coming weeks. read more

Pimcore is an open source enterprise content management system (CMS) written in PHP, It uses MySQL as database backend. In this tutorial, we will install Pimcore CMS on CentOS 7 server.

In this post, we’ll talk about where we started with package managers, how they’ve evolved, and why Kenzan recommends Yarn as a best bet for scaled applications in the continuing evolution of package management.

Do you want to sharpen your system administration or Linux skills? Perhaps you have some stuff running on your local LAN and you want to make your life easier—where do you begin? In this article, I'll explain how to set up tooling to simplify administering multiple machines. When it comes to remote administration tools, SaltStack, Puppet, Chef, and Ansible are a few popular options. Throughout this article, I'll focus on Ansible and explain how it can be helpful whether you have 5 virtual machines or a 1,000. read more

Nice solar tracking, shame about the Flatpaks Review Fedora 26, released recently, is a welcome update on the already very nice 25.…

Welcome to part 3 in the series on taking smart backups with duplicity. This article will show how to use Déjà Dup, a GTK+ program to quickly back up your personal files. Déjà Dup is a graphical frontend to Duplicity.... Continue Reading →

Live demos are the bane of professional speakers everywhere. Even the most well-prepared live demo can go wrong for unforeseeable reasons. This is a bad thing to happen while you're on stage in front of 300 people. Live demos of remote web apps are so fraught with peril that most people find other ways of presenting them. Screenshots can never fail, and local sandboxes won't fail on overloaded conference internet connections. But what if we can't set up a local sandbox in time for our talk? What if our database is huge and complex? read more

Repeat after me: _ is allowed in domain names A few Penguinistas spent a weekend working out why they can't get through to Netflix from their Linux machines, because when they tried, their DNS lookups failed.…

Millions of IoT devices relying on widely used third-party toolkit gSOAP could face a zero-day attack, security firm Senrio disclosed Tuesday, which dubbed the vulnerability Devil's Ivy.

During the first day at the Akademy, everything went according to plan and nearly everything was on time. Kudos to the organisers. The weather was balmy at the beginning of the day and, although Aleix Pol said it was not hotter than a hot day in Barcelona, many of the Scandinavian and Scottish attendees were visibly wilting under the sun. Fortunately for them, the venue is equipped with air-conditioning...

Conference highlights for MesosCon North America -- taking place Sept. 13-15 in Los Angeles, CA -- include real-world experiences and insight from companies deploying Mesos in the datacenter. This annual conference brings together users and developers to share and learn about the Mesos project and its growing ecosystem. The conference features two days of sessions focused on the Apache Mesos Core and related technologies, as well as a one-day hackathon.  

With Open Container Initiative 1.0, container runtime and image specs have been standardized.

To scale successfully, every software development team needs to have a plan in place to plan and manage their work, and open source is no different. For many software teams, a scrum methodology is the framework they use for project management. Scrum is all about making development agile while keeping work sprints on a regular, fixed cadence so that features and bug fixes get built, tested, and deployed on a regular basis. read more

Seeed Studio’s $7 “Seeeduino V4.2” board is a full-sized Arduino Uno clone with a micro-USB host port, Uno-style expansion headers, and 3x Grove interfaces. Arduino Pico We’ve encounted several tiny, low-cost Arduino clones over the past couple of years including the $10 BeanDuino (20 x 11mm), $14 Arduino Pico (15 x 15mm), and $18 µduino […]

Just learn them all and stop worrying about the popularity contest Among developers, Python is the most popular programming language, followed by C, Java, C++, and JavaScript; among employers, Java is the most sought after, followed by C, Python, C++, and JavaScript.…