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In this tutorial, we I will show you how to install and configure PostgreSQL replication by using hot standby mode. PostgreSQL or Postgres is an open source object-relational database management system (ORDBMS) with more than 15 years of active development. It's a powerful database server and can handle high workloads.

In part 1, we learned how to make simple automated unencrypted and encrypted backups. In this article, I will show you how to fine-tune your file selection, and how to backup your encryption keys.

Open source is often the heart of many civic technology solutions because using open source leverages the minds of many. Small web solution providers, in particular, often turn to open source as a way to deliver services without having to reinvent the wheel. I recently found out about Digital Deployment, a civic web solution provider in Sacramento, that leverages open source, and so I asked them to share their story with me. read more

Shortly after Carnegie Mellon University professor Lorrie Cranor became chief technologist at the Federal Trade Commission in January, she was surprised by an official agency tweet that echoed some oft-repeated security advice. It read: "Encourage your loved ones to change passwords often, making them long, strong, and unique." Cranor wasted no time challenging it.

In 2014, my colleague Jason Hibbets wrote up a great article based on an excellent talk from Mark Atwood on the skills necessary to get a job with open source. read more

Commell announced three Intel 6th Gen Skylake-U boards in Mini-ITX, Pico-ITX, and 3.5-inch formats, with DDR4 RAM, GbE, USB 3.0, and triple display support. Commell, which in April announced an LV-67S Mini-ITX board running Intel’s 6th Gen (“Skylake”) Core S-Series and Xeon processors, has followed up with three SBCs offering the more energy-efficient, 15W, dual-core, […]

"Dad, I killed Windows, but I just realized I still need it. Can you help me?" "No, you broke it, you fix it." This was sometime around 2008. I wasn't even 20 years old. I didn't know how to code (apart from basic HTML stuff), nor did I have any particular tech skills. However, I was part of a community radio station that was embedded in an open source culture. After a full year as a member of that community, I decided it was time to fully convert and decided to install a Linux-based OS on my first ever laptop. read more

“People use Tails to chat off-the-record, browse the web anonymously, and share sensitive documents. Many human rights defenders depend on Tails to do their daily work, if not simply to stay alive.”

So, Linux kernel 4.7 is here. The release happened July 24, just over 10 weeks after the release of 4.6 and two weeks after the final release candidate (4.7-rc7). This release cycle was slightly longer than usual due to Torvalds traveling commitments.

In a talk at the Embedded Linux Conference, Mike Anderson, CTO of The PTR Group, explored the unique security challenges that face Linux-based IoT devices.

Encrypted backups are great, but what if something goes wrong and you can't read your encrypted files? In this two-part series, I’ll show how to use rsync and duplicity as your belt-and-suspenders protection against data loss. Part 1 shows how to create and automate simple backups. In part 2, I'll go into more details on file selection and backing up encryption keys.

Open Virtual Networking (OVN) is a new open source project that brings virtual networking to the Open vSwitch user community and aims to develop a single, standard, vendor-neutral protocol for the virtualization of network switching functions. In their upcoming talk at LinuxCon North America in Toronto this month, Kyle Mestery of IBM and Justin Pettit of VMware will cover the current status of the OVN project, including the first software release planned for this fall.

This guide explains how to set up WebDAV with Lighttpd on a Debian 8 (Jessie) server. WebDAV stands for Web-based Distributed Authoring and Versioning and is a set of extensions to the HTTP protocol that allows users to directly edit files on theLighttpdd server so that they do not need to be downloaded/uploaded via http://FTP. Of course, WebDAV can also be used to upload and download files.

It's no secret that open source skills are in hot demand. Whether you're a developer writing the code that will run tomorrow's websites or next hot application, or a system administrator who is helping keep a company's IT infrastructure up and running, chances are you work with open source software along the way. read more

Of all the concepts we associate with open organizations today, meritocracy might be the most complicated, complex, and controversial. I remember vividly a conversation that illustrated this for me. Speaking with someone at a banking conference, I suggested that, in organizations wishing to foster cultures of innovation, the best ideas should always win—and that people with the longest history of concrete, successful contributions to an organization should be the ones to decide which ideas are indeed "best." That didn't suit my discussion partner. read more

John McPhee says his books on geology could all be compressed to a single statement: the summit of Mt. Everest is marine limestone. We can do the same for Linux with this one: microsoft.com is hosted on Linux.

As more and more enterprises adopt a “cloud-like” infrastructure, a shift in work culture and practices -- known as DevOps -- is also occurring. According to Puppet’s 2016 State of DevOps report, the number of people working in DevOps teams has increased from 16 percent in 2014 to 22 percent in 2016.

myDevices announced Arduino support for its web- and mobile-based, Raspberry Pi compatible “Cayenne” drag-and-drop IoT development and management platform. Cayenne, with which developers, designers, and engineers can “quickly prototype and share their connected device projects,” has expanded support beyond the Raspberry Pi to Arduino boards, says myDevices.

Search for Linux open source packages that run on IBM Power Systems.

As more and more enterprises adopt a “cloud-like” infrastructure, a shift in work culture and practices -- known as DevOps -- is also occurring. According to Puppet’s 2016 State of DevOps report, the number of people working in DevOps teams has increased from 16 percent in 2014 to 22 percent in 2016.