Showing all newswire headlines

In this tutorial, we learn different ways to append text to the end of a file in Linux. You can achieve this using several methods in Linux, but the simplest one is to redirect the command output to the desired filename.

Running a Ubuntu server? You need to reboot occasionally after a system upgrade. Ubuntu livepatch can avoid server reboot without compromising security.

This is the story of how our team at Rookout built non-breaking breakpoints for Python and some of the lessons we learned along the way. I'll be presenting all about the nuts and bolts of debugging in Python at PyBay 2019 in San Francisco this month. Let's dig in. The heart of Python debugging: sys.set_trace There are many Python debuggers out there. Some of the more popular include: read more

Install Rocket.Chat with Node.js, MongoDB and configure Nginx as a reverse proxy to Rocket Chat and secure it with Let's Encrypt Certificates on Ubuntu 18.04

It's super easy to get lost in the world of big data technologies. There are so many of them that it seems a day never passes without the advent of a new one. Still, such fast development is only half the trouble. The real problem is that it's difficult to understand the functionality and the intended use of the existing technologies. read more

sed is a stream editor. It can perform basic text manipulation on files and input streams such as pipelines. With sed, you can search, find and replace, insert, and delete words and lines. It supports basic and extended regular expressions that allow you to match complex patterns.

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. read more

E-con has unveiled a Linux-ready, “FRAMEsafe” series of USB UVC cameras with multi-frame buffers that support 4K multi-camera applications. The initial, 13-megapixel “FSCAM_CU135” model has a Xilinx Spartan FPGA and 2Gb DDR3. E-con Systems has launched the FSCAM_CU135 — the first in a series of FRAMEsafe cameras with an internal buffer that “ensures reliable transfer […]

PowerShell is a command-line shell designed specifically for system administrators to simplify and automate server management. In this article, we will see how to install PowerShell as a snap in Ubuntu.

Advantech’s modular “IPC-220/240” industrial computers run on 6th or 7th Gen Intel CPUs with dual SATA bays, up to triple display support, up to 6x USB 3.0 ports, and either 2x (220) or 4x (240) PCIe/PCI slots. Advantech has launched IPC-220 and IPC-240 industrial PCs starting at $1,055 for the IPC-220 with an Intel 6th […]

Not ready for production yet, warns team, as it expands ZFS support Canonical is expanding Ubuntu's support for ZFS, an advanced file system originally developed by Sun Microsystems.…

How outdoor hobbies help this sysadmin maintain his sanity.

Automad is a file-based content management system (CMS) and a template engine written in PHP. In this tutorial, we will go through the Automad CMS installation and setup on Debian 10 (buster) system by using NGINX as a web server.

2DayGeek: This article will help you to upgrade from Linux Mint 19.1 (Tessa) to Linux Mint 19.2 (Tina).

This was originally intended for the September 2019 issue of Linux Journal Magazine focused around the theme of Cool Projects. Many months ago I stumbled onto an exciting kit in which one can assemble an Altair 8800 emulator (and at a fraction of the size and weight of the original Altair). I knew I had to purchase this. I also knew that I had to reach out to the individual (Chris Davis) designing and selling these emulator kits, to learn more about the motivation behind it.

From its early days, the availability of source code was one of the defining characteristics of open source software. Indeed, Brian Behlendorf of the Apache web server project, an early open source software success, favored "source code available software." read more

If you are new to Linux administration, you may be wondering how Linux file permissions work on Linux systems.

Maybe you have been denied the read access to a file and you are trying to discover why and how to solve it. Or you may have tried to move a file from a directory to another, only to discover that you don’t have the permissions to do it.

Today, we are taking a very close look at how file permissions work on Linux

This tutorial explains how to change or fake MAC address in Linux.

Hexdump is a utility that displays the contents of binary files in hexadecimal, decimal, octal, or ASCII. It’s a utility for inspection and can be used for data recovery, reverse engineering, and programming. read more

In mathematics, iterated function systems (IFSs) are a method of constructing fractals; the resulting fractals are often self-similar. If you want an introduction to IFS fractals, give IFStile a whirl. Create your own IFS fractals with this useful tool.