In this article we will show you how to install Dolibarr on an Ubuntu 18.04 VPS. Dolibarr is an easy-to-use, open-source ERP and CRM application which is mainly used to easily and effectively manage companies, freelancers, and foundations. This guide should work on other Debian based servers as well, but it was tested and written for an Ubuntu 18.04 VPS.

No matter what operating system you're running, there are usually several ways to install an application. Sometimes you might find an application in an app store, or you might install it with a package manager like DNF on Fedora or Brew on Mac, and other times, you might download an executable or an installer from a website. Because Java is such a popular backend for so many applications, it's good to understand the different ways you can install it. The good news is that you have many options, and this article covers them all.

Docker Compose is a tool for defining and running multi-container docker applications. With Compose, we use a YAML file to configure our application’s services.

Two days ago I got a mail from our regular reader, who asked me how to get a summary of directories in Linux. This tutorial allows you to get the size of a given directory and its subdirectories on Linux.

Last week’s blog looked at whether the RPI4 cuts the mustard as a desktop web browser. It does although with a few reservations. This week’s blog focuses on another absolutely essential desktop activity. Managing your email.

In addition to an operating system, the Fedora Project provides services for users and developers. Services such as Ask Fedora, the Fedora Project wiki and the Fedora Project mailing lists help users learn how to best take advantage of Fedora. For developers of Fedora, there are many other services such as dist-git, Pagure, Bodhi, COPR and Bugzilla for the packaging and release process.

Fujitsu’s three new “Futro” thin clients feature the Linux-based eLux RP stack running on Intel’s Gemini Lake Refresh SoCs. The quad-core Futro S9010 and S7010 and the dual-core S5010 offer GbE, 2x DP, and 7x USB ports.

The Cloud Native Computing Foundation (CNCF) is hosting its core conference for the fifth year running. It’s official title is KubeCon + CloudNativeCon, but it’s most importantly the home for Kubernetes. Adopters, contributors, and Kubernetes-curious attendees add up to a record-breaking 12,000 people.

IBM has long cross-licensed with Microsoft. This means they won’t sue one another over patents. Good for them, eh? Shared monopoly. No wonder Red Hat nowadays promotes Microsoft things almost every day. Now that IBM owns Red Hat (and all of its patents) IBM won’t care about Microsoft’s ongoing — even in 2019 — blackmail of OEMs that ship GNU/Linux.

The Linux kernel is the core component of the Linux operating system, maintaining complete control over everything in the system. It is the interface between applications and data processing at the hardware level, connecting the system hardware to the application software. The kernel manages input/output requests from software, memory, processes, peripherals and security, among other hefty responsibilities. Needless to say, the Linux kernel is pretty important. 

Community is a fundamental component of open organizations. The Open Organization Definition notes that: Shared values and purpose guide participation in open organizations, and these values—more so than arbitrary geographical locations or hierarchical positions—help determine the organization's boundaries and conditions of participation.

In this guide, we will discuss how to install the PostgreSQL database server on CentOS 8.

UK-based video games publisher Feral Interactive announced today that it plans to release the GRID Autosport racing video game on the Android platform next week on November 26th.

As part of my role as a senior product marketing manager at an enterprise software company with an open source development model, I publish a regular update about open source community, market, and industry trends for product marketers, managers, and other influencers. Here are five of my and their favorite articles from that update.

Together, they'll support Unified Patents' Open Source Zone. This move will deter patent trolls from suing for fear they'll find their patents annulled.

This guide will walk you through the installation of MariaDB and its configuration in a Galera cluster. We will be using three Debian 10 nodes for demonstration.

A popular mantra in information security is, "Trust, but verify." Learn how to inspect a web server’s TLS certificate before trusting the site.

The highly anticipated Linux 5.4 kernel finally has a release date as Linus Torvalds announced over the weekend the last Release Candidate (RC).

Enterprises using Linux for their cloud or data center servers may be faced with a larger threat from advanced security attackers in the near future. Based on the Linux Foundation’s estimates back in 2014, 75% of enterprises reported using Linux for the cloud and 79% for application deployments.

WordPress is the easiest to use & most feature-rich CMS for building an awesome website. For doing such complex tasks easily, WordPress uses a bit higher system resources than other CMS available in the market.

I've been a user of the Vim text editor for about two decades. For a little while, I have been customizing my Vim configuration, only using plugins for the last couple of years. Recently, when I was redoing my setup (as I do every so often), I decided it was a good opportunity to identify the best Vim plugins for programming in multiple languages and a way to combine those plugins for each language I program in. read more

This post is a tutorial about setting a Cron Job In Linux. I have broken down this tutorial in 3 parts. Current post talks about the basics of Cron job and Cron tab.

With a Linux version that already works very well, the engrossing building game Factorio is going to fully released next year.

In a previous article, I covered Red Hat Ansible basics and installed Ansible, creating one control node named RHEL8 and four managed nodes (node1, node2, node3, and node4), all running Red Hat Enterprise Linux. Now, for Ansible to communicate with a managed node, you need to configure the control node and the managed nodes with a user account, and give that user account privilege escalation to run commands without having to enter a password.

Periodically, I need to come up with new passwords, some of which need to be more secure than others. My mind often seems to draw a blank when I have to create a new login, and this short Bash script fills that void. Full disclosure: I found most of this script posted somewhere and made a minor modification to it. read more

Solid State Drives (SSDs) brought performance to the forefront of computing technologies, and their adoption is increasing not only in the data center but also in consumer-grade products. Unlike its traditional spinning hard disk drive (HDD) counterpart, SSDs comprise a collection of computer chips (non-volatile NAND memory) with no movable parts. Therefore SSDs are not kept busy seeking to new drive locations and, in turn, introducing latency. As great as this sounds, SSDs are still more expensive than HDDs. HDD prices have settled to around $0.03/GB; SSD prices vary but sit at around $0.13-$0.15/GB. At scale, that price gap makes a world of difference.

This tutorial focuses on commenting lines in a configuration file on Linux, the examples used here are from Debian 10. However they will work on any other linux distribution too.

Shenzhen Xunlong has posted preliminary specs for a Rockchip RK3399 based “Orange Pi 4” SBC that is smaller and more affordable than the Orange Pi RK3399 and faster and more feature rich than the Orange Pi 3. A 4B variant adds a Lightspeeur 2801S AI chip.

NetBSD is famous for running on basically anything, but did you know its second claim to fame is the pkgsrc package manager? Like NetBSD, pkgsrc runs on basically anything, or at least anything Unix and Unix-like. You can install pkgsrc on BSD, Linux, Illumos, Solaris, and Mac. All told, over 20 operating systems are supported. read more

Capturing packets with a free tool like tcpdump is an essential skill that you need to acquire as a sysadmin. Anthony Critelli shows you the ropes.