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In this tutorial, we will show you how to set up Kerberos authentication between two Ubuntu 18.04 servers. We will install and configure the Kerberos server on the Ubuntu server and then install the Kerberos client on the other. Finally, we will test the authentication of the SSH service with the Kerberos server.

Infrastructure monitoring is an integral part of infrastructure management. It is an IT manager's first line of defense against surprise downtime. Severe issues can inject considerable downtime to live infrastructure, sometimes causing heavy loss of money and material. Monitoring collects time-series data from your infrastructure so it can be analyzed to predict upcoming issues with the infrastructure and its underlying components. This gives the IT manager or support staff time to prepare and apply a resolution before a problem occurs. A good monitoring system provides: read more

In this article we discuss how to install and use the command line dictionary. It is a nostalgic look at a remnant of the past that still may have a practical use.

In this tutorial, we will show you how to install PHP 7.3 on Debian 9. PHP (Hypertext Preprocessor) is an open-source server-side scripting language designed primarily for creating dynamic interactive websites. PHP is one of the most popular languages and it is freely available for redistribution and modifications. PHP powers WordPress, the most popular content management system used for blogging and building websites, as well as many other e-commerce websites, customer relationship management software, enterprise resource planning software, and much more.

Every day there seems to be a security breach reported in the news where our data is at risk. Despite the fact that SSH is a secure way to connect remotely to a system, you can still make it even more secure. This article will show you how. That’s where two-factor authentication (2FA) comes in. […]

This is the latest in our series of articles highlighting essential system tools. These are small, indispensable utilities, useful for system administrators as well as regular users of Linux based systems. The series examines both graphical and text based open source utilities. For this article, we’ll look at QDirStat, a graphical application to show what’s devouring your disk space and help you tidy up the disorder.

There are plenty of specialized Linux distributions for the Raspberry Pi. Here are some of the best Linux distro you can run on Raspberry Pi.

Apache Cassandra is a free and open source NoSQL database with no single point of failure. It provides linear scalability and high availability without compromising performance. Apache Cassandra is used by a number of organizations including Apple, NetFlix, eBay, and Easou.

Berners-Lee's WorldWideWeb code can't handle much, but hey, it now runs in a browser In preparation for next month's 30th anniversary of the proposal that gave us the world wide web, boffins at the behest of CERN have recreated the world's first web browser, and made it accessible as a modern web page.…

The KDE Project released today the first point release of the latest KDE Plasma 5.15 desktop environment series to address various issues and annoyances reported by users.

Cachet is a beautiful and powerful open source status page system written in PHP that allows you to better communicate downtime and system failures to your customers, teams, and shareholders.

Offensive Security announced today the general availability of the Kali Linux 2019.1, the first update of the popular ethical hacking and penetration testing operating system in 2019.

When you think of the word wiki, chances are the first thing that comes to mind is Wikipedia. That's not a surprise, considering that Wikipedia did help put the concept of the wiki into the popular consciousness. Wikis, which are websites you can edit, are great tools for collaborating and organizing. But wikis usually require a lot of digital plumbing and a bit of care to use and maintain. All of that's overkill for personal use. read more

Using jumpapp you can create a single keyboard shortcut that will launch an application if it's not already running, or focus the application window if it's already running. If there is more than one application window open, pressing the keyboard shortcut repeatedly cycles through all the application windows.

If you've ever wondered how your Linux computer stacks up against other Linux, Windows, and MacOS machines or searched for reviews of Linux-compatible hardware, you're probably familiar with Phoronix. read more

In the previous two tutorials, we discussed the basics of variables including how they occupy memory. But we mainly focused on integers and floats. In this tutorial, we will discuss about characters (or char type variables).

News briefs for February 19, 2019.

There are a lot of great open source tools out there for storing secrets in Git. It can be hard to determine the right one for you and your organization—it depends on your use cases and requirements. To help you compare and choose, we'll look at four of the most popular open source tools for secrets management and see how they stack up against each other: read more

Organizer is a new, work in progress GTK application to organize your files on Linux. The directory organizer application moves files to a new directory based on their type. Select a folder and Organizer will move all existing jpg and png files to a new Images folder, zip, rar and tar.gz files to an Archives folder, pdf, odt and docx files to a Documents folder, and so on.

Who do you think you are? Paris-based code botherer CAST Software said today it would buddy up with Software Heritage to tackle the sometimes tricky task of identifying the provenance of open-source code in modern projects.…