In this tutorial, I will show you how to add a new host to be monitored by Icinga 2 and how the host’s services, such as a web HTTP server, can be monitored by Icinga. I will also show you how to create your own custom Icinga plugin command in order to monitor UDP services in your network infrastructure.
In early October 2017, the inaugural Open Jam, a video game jam focused on open source game development, took place. Creators were given 72 hours to build a video game from scratch using the best of the open source world. It was a fantastic weekend, with 45 games created and entered into the jam, and three outstanding entries making it to the final competition. Read on for a review of the event, lots of pictures, and heaping praise for the creators!
In a previous article we have seen how to parse command line arguments using getopts in the context of bash scripts (you can find the article here). Now we will see how to accomplish the same task, in a more powerful way, when writing a python script.
The Pentagon is a software-intensive workplace
'New editing experience' called Gutenberg coming too, but it might hate your plugins
WordPress 4.9 has debuted, and this time the world's most popular content management system has given developers plenty to like.…
One of the benefits to using Linux on the desktop is that there’s no shortage of tools available for it. To further illustrate this point, I’m going to share what I consider to be the top 10 Linux tools.
The tech industry is heading towards a stage where self service for standard IT requirements will become a norm, helped by the increase in software-defined infrastructure, a senior engineer from SUSE Linux claims.
Advantech’s Linux-ready “MIC-1810” and “MIC-1816” DAQ computers offer 12- and 16-bit analog I/O, respectively, plus 24x DIOs, Intel CPUs, and 4x USB ports. Advantech’s MIC-1810 and MIC-1816 are digital acquisition computers that run Linux or Windows 7/8/10 on Intel 3rd Gen “Ivy Bridge” processors. If the aging CPU is a turn-off, keep in mind that […]
Many contemporary definitions of "collaboration" define it simply as "working together"—and, in part, it is working together. But too often, we tend to use the term "collaboration" interchangeably with cognate terms like "cooperation" and "coordination." These terms also refer to some manner of "working together," yet there are subtle but important differences between them all.
A new version of the ExLight GNU/Linux distribution hit the streets this week bringing users an Ubuntu 17.10-based desktop experience featuring the lightweight Enlightenment desktop environment.
You can record a terminal session with any screen recording program, but Showterm for Linux makes it very easy to record and embed on a site. Here’s how it works.
Technexion’s Wandboard.org unveiled open source “Wand-Pi-8M” SBCs that run Linux on a quad-A53 i.MX8M, and offer WiFi/BT, GbE, HDMI 2.0, and a 40-pin RPi link. Technexion and its Wandboard.org community project opened pre-orders on three successors to its i.MX6 based Wandboard and almost identical Wandboard Reload SBCs that tap NXP’s long awaited, quad-core, Cortex-A53 i.MX8M SoC.
Hackers are constantly trying to break into Google accounts, so Google researchers spent a year tracing how hackers steal passwords and expose them on the internet's black market.
Canonical announced today the general availability of the latest Mozilla Firefox 57.0 Quantum web browser for all of its supported Ubuntu Linux releases.
Libre Computer’s open source “Tritium” SBCs run Ubuntu or Android on Allwinner H2+, H3, or 64-bit H5 SoCs, and have an RPi 3 like layout and 40-pin header. Earlier this year, Shenzhen-based Libre Computer successfully funded its quad Cortex-A53 Amlogic S905X based Le Potato SBC on Kickstarter for $25 to $35. Now, the company has […]
In this guide we will discuss how to install and configure the latest version Icinga 2 web monitoring tool in Debian 9.2 release, in order to monitor all important network infrastructure devices, such as physical or virtual servers or VMs, routers, switches, firewall appliances and other network IoT devices.
Sure, we can get by with boring old GNOME terminal, Konsole, and funny, rickety, old xterm. When you're in the mood to try something new, however, take a look at these five cool and useful Linux terminals.
Five months after it launched its OnePlus 5 flagship Android smartphone, OnePlus unveiled today its successor, the OnePlus 5T, running the latest Android 8.0 (Oreo) mobile OS.
The Fedora 27 Atomic Host now supports multiple architectures! Along with the x86_64 architecture, Atomic Host is also available on 64-bit ARM (aarch64) and PowerPC Little Endian (ppc64le). Both aarch64 and ppc64le architectures receive Atomic OSTree updates in the same... Continue Reading →
Linux Kernel 4.14 is here. It is a long-term support release and as stated earlier, it is the first Linux Kernel that will be supported for six years. Until now Linux Kernel LTS versions were supported for two years.
As per the local reports, these moves are a result of the political scenario in Munich. In the past, city’s IT chief has also said that there isn’t any compelling technical reason to ditch Linux. In the wake of attacks like WannaCry, Green Party had already warned that a move to Windows 10 is too risky.
"But surely open source software is less secure, because everybody can see it, and they can just recompile it and replace it with bad stuff they've written." Hands up: who's heard this?1
The game-changing Firefox Quantum is here to reclaim the lost userbase. Here’s how to install Firefox Quantum in Linux right now.
A few years ago, I worked as a service manager at Basefarm, a European managed services provider. I was part of a team supporting customers with infrastructure and managed services.
Today the social network open sourced open/R, making it free to use by anyone who might be designing applications that will require routing at the speed of Facebook. It's being released under the "permissive" MIT license, which allows it to be used in both open source and proprietary projects.
Professional writers, at least in the Red Hat documentation team, nearly always work on docs alone. But have you tried writing as part of a pair? In this article, I'll explain a few benefits of pair writing.
There is an annoying error on Linux systems that tells you you have no space when there is plenty on your filesystem. Explore these potential fixes.
With the announcement, Red Hat joins Linux distributions SUSE and Ubuntu, both of which already support ARM with their server editions. However, it's not really late to the fair. The company has been actively working on an ARM version of RHEL for a while, having released its first "development preview" for the architecture in 2015.
If you're working on documentation, a website, or other user-facing content, it's helpful to know what users expect to find—both the information they want and how the information is organized and structured. After all, great content isn't very useful if people can't find what they're looking for.
Habey’s “EMB-2230” SBC runs Linux on an i.MX6, and offers LVDS and MIPI-DSI/CSI links, -10 to 60°C support, a 40-pin GPIO header, and optional PoE. Habey promotes its Pico-ITX (100 x 72mm) EMB-2230 SBC as being smaller and more expandable than its 3.5-inch (146 x 102mm) EMB-3200 SBC. Like the EMB-3200, the EMB2230 runs Linux on Dual Lite or Quad versions of NXP’s 1GHz, Cortex-A9 i.MX6 SoC, and is aimed primarily at panel PCs.
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