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In this tutorial, we will install Webmin on CentOS 7.2. We will also learn to administrator Apache web server, firewalld and Webmin configuration. Webmin is free and open source web based system administration tool for Unix systems. It provides a rich and powerful web based user interface to administrator the server along with all the popular applications like Apache, BIND, Squid Proxy etc.

COBOL is the Rodney Dangerfield of programming languages—it doesn't get any respect. It is routinely denigrated for its verbosity and dismissed as archaic. Yet COBOL is far from a dead language. It processes an estimated 85% of all business transactions, and 5 billion lines of new COBOL code are written every year. read more

Today my colleague almost lost everything that he did over four days of work. Because of an incorrect git command, he dropped the changes he'd saved on stash. After this sad episode, we looked for a way to try to recover his work... and we did it! First a warning: When you are implementing a big feature, split it in small pieces and commit it regularly. It's not a good idea to work for a long time without committing your changes. read more

In a new report, Incapsula warns about a new type of ferocious DDoS attack that uses "pulse waves" to hit multiple targets. Pulse wave DDoS is a new attack tactic designed by skilled bad actors "to double the botnet's output and exploit soft spots in 'appliance first cloud second' hybrid mitigation solutions."

CoreOS's Kubernetes distro, Tectonic 1.7, delivers on hybrid cloud by extending container DevOps capabilities across open-source and Azure clouds and data centers.

The Orange Pi Zero Plus is a quad -A53 version of the Zero that advances to Gigabit Ethernet. You also get WiFi, USB host and OTG, and Linux/Android images. Shenzhen Xunlong is clearly trying to mess with our minds.

Last week, you may recall, we looked at calculating network addresses with ipcalc. Now, dear friends, it is my pleasure to introduce you to ipv6calc, the excellent IPv6 address manipulator and query tool by Dr. Peter Bieringer. ipv6calc is a little thing; on Ubuntu /usr/bin/ipv6calc is about 2MB, yet it packs in a ton of functionality.

Sensu is a free and open source tool for composing the monitoring system you need. In this tutorial, we will go through step by step installation of Redis, RabbitMQ and Sensu on Ubuntu 16.04.

Arbor unveiled an Ubuntu-ready “EmETXe-i90U0” Type 6 Compact module with 7th Gen U-series Core CPUs, triple displays, and -40 to 85°C support. Last month, Arbor Technology announced a 125 x 95mm COM Express Type 6 Basic module called the EmETXe-i90M0 that features Intel 7th Generation “Kaby Lake” EQ processors. Now, Arbor has followed up with […]

In any collaborative environment, it's important to have good tools for communication. read more

p> In my last article, I had some fun looking at the children's game of rock, paper, scissors, writing a simple simulator and finding out that some strategies are better than others. Yes, I used "strategy" and "rock, paper, scissors" in the same sentence!

A few weeks ago, Fedora 26 was released. Every release of Fedora brings new updates and new applications into the official software repositories. Whether you were already a Fedora user and upgraded or you are a first-time user, you might... Continue Reading →

Today, software development is built around APIs. Instead of embedding a vendor's product into their application, developers can call an API to consume services from a vendor. The developers don't need to know what's responding to their calls on the backend; they simply need to know what the vendor's API expects from their code and what they can expect to receive back from the API. It is, in many senses, wonderfully non-intimate. read more

Selecting technologies means committing to solutions that will support an active, growing business over the long term, so it requires careful consideration and foresight. When an enterprise bets on the wrong horse, the result is often significantly higher development costs and reduced flexibility, both of which can stick around for the long haul. read more

Portwell’s “PCOM-B701” is a COM Express Type 7 with an up to 16-core Atom C3000 plus 4x 10GbE-KR, a GbE port, 20x PCIe lanes, and industrial temp support. Like the PCOM-B700G module that Portwell unveiled last month, the PCOM-B701 adopts the 125 x 95mm COM Express 3.0 Type 7 Basic form factor.

This week, Ezequiel Pereira said in a blog post that he went bug hunting on July 11 simply due to boredom, and after several failed attempts, stumbled upon a way to change the Host Header in requests to the App Engine server without authentication.

Twenty-six years ago this month, a geeky student in Finland released the Linux kernel to the world. Today, hundreds of millions of people are using Linux. Why? That’s a question I try to answer in my new book For Fun and Profit: A History of the Free and Open Source Software Revolution.

Programming language keeps getting fatter amid awkward version 3 split Analysis The PyBay 2017 conference, held in San Francisco over the weekend, began with a keynote about concurrency.…

While working on the command line in Linux, there may arise a situation where-in the requirement is to replace tabs in a file with spaces. The task isn't difficult if the file is small, but what if the file you're dealing with is huge, or worse, there are hundreds of files in which you have to make this change? Worry not, there exists a command line tool that's specifically built for this work. The tool in question is expand, and in this tutorial, we will discuss the basics of expand using some easy to understand examples.

Canonical picks up after Apple – 17 years later Canonical is adding a trash can icon to the upcoming Ubuntu 17.10 release, which might give some a sense of déjà vu.…