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Take on "dependency hell" with Docker containers, the lightweight and nimble cousin of VMs. Learn how Docker makes applications portable and isolated by packaging them in containers based on LXC technology.

A typical network/system admin is responsible for managing one or more subnets within the network under control. For example, when a LAN segment is assigned a /24 subnet, a total of 254 IP addresses can be used for different purposes. To keep track of what IP addresses are assigned to which hosts, some sort of […]Continue reading... The post How to manage ip addresses and subnets with phpIPAM appeared first on Xmodulo. Related FAQs: How to detect IP address conflicts in Linux How to assign multiple IP addresses to one network interface on CentOS How to manage Linux containers with Docker on Ubuntu How to allow remote access to MySQL server How to install and configure tinc VPN on Linux

Drafting and using open licenses for data and hardware presents both familiar old challenges (like license proliferation) and new challenges (like less developed legal frameworks and different production models). About thirty people working in these areas recently gathered (under the umbrella of the FSF-E's "European Legal Network") to discuss the latest work in these areas under the Chatham House Rules. This article will summarize what the group learned, and, I hope, stimulate discussion to improve the state of licensing in those areas.

By Bernardo Gutierrez They open up areas struck by digital exclusion. They develop autonomous Internet networks in mountainous areas, install organic solar panels, and let local Internet radio emerge. They can even transform abandoned water troughs into eco-jacuzzis. "Hackerspaces," user-friendly spaces where technological tools are crafted, are spreading throughout the rural environment.

SDG Systems launched a Linux version of Trimble’s 7-inch Yuma 2 tablet, featuring an Atom N2600, sunlight readability, and MIL-STD-810G and IP65 protection.

Sometimes we, as a normal user or a system admin, need to know how well our system is running. Many questions related to system status can be answered by checking log files generated by active services. However, inspecting every bit of log files is not easy even for seasoned system admins. That is why they […]Continue reading... The post How to set up a web-based lightweight system monitor on Linux appeared first on Xmodulo. Related FAQs: How to set up a lightweight web server on Raspberry Pi How to monitor a Linux server and desktop remotely from web browser How to set up web-based network traffic monitoring system on Linux How to monitor common services with Nagios How to monitor Linux servers with SNMP and Cacti

The best software prioritizes the needs of its users. Listening to the user and more closely involving them in all aspects of design, development, and documentation has been a key focus of this year's OpenStack Summit, which is wrapping up here in Atlanta todayThe user is an important aspect of any open source project, but for a big project with lots of different overlapping use cases, understanding the user is even more important.

Hirschgarten, in the west of Munich, is one of Europe's biggest beer gardens, with over 8,000 places to sit. It's a spectacular sight in summer: hundreds of benches as far as the eye can see, trees providing some shelter from the heat, and a vast number of people relaxing and enjoying the city's famous beers. But while 8,000 is an impressive number, it's not as impressive as 15,000. That's how many people the Munich city council has switched from Windows to Linux over the last decade. Migrating workers of Germany's third-largest city was no easy task and there were plenty of hurdles along the way, but by and large the project has been a storming success.

Git has become the most popular version-tracking platform around for open-source projects. Whether you're using GitHub, Gitorious, Bitbucket or similar, or even if you're hosting the git repository yourself, accessing the code is something us Linux users take for granted.

ConnectBlue announced a tiny multi-wireless COM with Bluetooth 4.0, dual-band WiFi, and dual-Ethernet connectivity, and running Linux on a TI Sitara SoC.

Variscite announced a COM based on Qualcomm’s 1.7GHz quad-core Snapdragon APQ8064 SoC, supported with Android and Linux, and usable from -40 to 85?C. The VAR-SOM-SD600 builds upon the same Snapdragon APQ8064 system-on-chip as another computer-on-module announced this week: CompuLab’s CM-QS600. Qualcomm’s 1.7GHz, quad-core SoC is also known as the S4 Pro, and Variscite refers to […]

Boardcon’s Android-ready sandwich style SBC mixes a COM with a quad-core Exynos4412 SoC and a baseboard featuring optional displays and wireless modules.

If you run a publicly accessible Web server for your own use (and let's face it, if you're reading Linux Journal, there's a very good chance you do), how do you go about limiting the risk of someone accessing your site and doing bad things? How about SSH, an even bigger concern? In today's world, it's imperative to think about your exposure and take steps to limit as much risk as possible.

Here's a surprise for you: We actually have a fairly good understanding of who is attacking us on the Internet and why. Various entities know not only which groups are doing the attacking, but also the names of the people in those groups. They know where they live, who their family members are, where they went to school, and when they go on vacation.

Several vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service, information leaks or privilege escalation.

Howto enroll and use a Yubikey with privacyIDEA. We use the latest 0.9.1 from privacyIDEA.org.

Olimex has entered the computer-on-module market with three Linux- and Android-ready COMs, based on Allwinner’s A13 and A20 SoCs, and on TI’s AM3352.

Canonical, best known as the company behind Ubuntu Linux, is entering the private cloud hosting business with an OpenStack-based option for your data center or hosting provider.

Today KDE released updates for its Applications and Development Platform, the first in a series of monthly stabilization updates to the 4.13 series. This release contains only bugfixes and translation updates, providing a safe and pleasant update for everyone.

Sometimes it's best to go with what you know. For countless developers, database managers, analysts, and others who need to store data in a traditional relational database system, PostGreSQL is that system. But as the demands on databases grow, so too must the software which underlie them.