How to Install PrestaShop on Ubuntu 18.04

How to upgrade Ubuntu Server

How to Install Zabbix 4.0 on Ubuntu 18.04 & 16.04

website recursive offline mirror with wget

Using .NET PInvoke for Linux system functions

Getting started with Vim: The basics

How to install REDIS in LInux

10 Excellent Free Linux Relational Databases

A relational database matches data using common characteristics found within the data set. The resulting groups of data are organized and are much easier for people to understand. In such a database the data and relations between them are organized in tables. A table is a collection of records and each record in a table contains the same fields. Certain fields may be designated as keys, which means that searches for specific values of that field will use indexing to speed them up. The term relational database was originally defined by Edgar Codd, a British computer scientist, whilst working at IBM Almaden Research Center. He recognized that the concept of a relational database could be derived from the principles of relational algebra and relational calculus. A Relational Database Management System (RDBMS) is a Database Management System (DBMS) that is based on the relational model. Most database systems today are based on this type of system. A database is a vital system for any organization that stores mission critical information. The continual failure of a company’s database system can only lead to the demise of the organization – companies cannot do business without a working database system. To provide an insight into the quality of software that is available, we have compiled a list of 10 open source RDBMS. Hopefully, there will be something of interest here for anyone who wants to store data in an efficient way.

10 Best lightweight browsers for Linux or Ubuntu

Web Browsers, the day when they started making our lives easier by allowing us to crawl the internet to today’s world; they have been gone through numerous technological advancements. Browsers are quite advance to handle high-end graphics, online videos, apps and more without the help of third-party software. But this also has made them heavy in terms of consuming hardware resources, means more RAM and storage space. Such kind of browsers works well on good system configuration machines, however, Linux operating systems those are running on old PC or laptops or low configuration systems require light browsers with a minimal approach to work fast. Mainstream browser or shall I say the dominated one: Google Chrome that Linux users refrain themselves from instaling it on their machines is rather resourced consuming browser. This is the main reason why most of the Linux OS like Ubuntu, Linux Mint, Centos and more come with Firefox Mozilla but somewhere it still not that much lightweight as we need it to be. So, I have done some research and gathered some lightweight Linux browsers.

TenFourFox FPR13 SPR1 available

TenFourFox Feature Parity Release 13 Security Parity Release 1 ("FPR13.1") is now available and live (downloads, hashes, release notes). The Pwn2Own vulnerabilities do not work on TenFourFox in their present form (not only because we're PowerPC but also because of our hybrid-endian typed arrays and other differences), but I have determined that TenFourFox-specific variant attacks could be exploitable, so we are patched as well. This should also reduce the risk of crashes from attempts to exploit mainline x86 Firefox. Meanwhile, H.264 support for TenFourFox FPR14 appears to be sticking. Yes, folks: for the first time you can now play Vimeo and other H.264-only videos from within TenFourFox using sidecar ffmpeg libraries, and it actually works pretty well! Kudos to Olga for the integration code! That said, however, it comes with a couple significant caveats. The first is that while WebM video tends not to occur in large numbers on a given page, H.264 videos nowadays are studded everywhere (Vimeo's front page, Twitter threads, Imgur galleries, etc.) and sometimes try to autoplay simultaneously. In its first iteration this would cause the browser to run out of memory if a large number of higher resolution videos tried to play at once, and sometimes crash when an infallible memory allocation fallibled. Right now there is a lockout in the browser to immediately halt all H.264 decoding if any instance runs out of memory so that the browser can save itself, but this needs a lot more testing to make sure it's solid, and is clearly a suboptimal solution. Remember that we are under unusual memory constraints because of the large amount of stack required for our JIT.

Top 5 Linux Apps For Writing

Top 5 Linux Apps For Writing. Keeping in mind that not all Linux apps for writing are created equal nor do they each provide the same functionality. Today I’ll provide you with my top five Linux app picks for writing.

Questioning and Finding Purpose

This is copied over from my spiritual blog. I'm nervous doing that, especially at a point when I'm more vulnerable than usual in the Debian community. Still, this is who I am, and I want to be proud of that rather than hide it. And Debian and the free software community are about far more than just the programs we write. So hear goes: The Libreplanet opening keynote had me in tears. It was a talk by Dr. Tarek Loubani. He described his work as an emergency physician in Gaza and how 3d printers and open hardware are helping save lives. They didn't have enough stethoscopes; that was one of the critical needs. So, they imported a 3d printer, used that to print another 3d printer, and then began iterative designs of 3d-printable stethoscopes. By the time they were done, they had a device that performed as well or better than than a commercially available model. What was amazing is that the residents of Gaza could print their own; this didn't introduce dependencies on some external organization. Instead, open/free hardware was used to help give people a sense of dignity, control of some part of their lives, and the ability to better save those who depended on them. Even more basic supplies were unavailable. The lack of tourniquets caused the death of some significant fraction of casualties in the 2014 war. The same solution—3d-printed tourniquets had an even more dramatic result. Dr. Loubani talked about how he felt powerless to change the world around him. He talked about how he felt like an insignificant ant.

LibrePlanet Day 2: Welcoming everyone to the world of free software

One of the most important questions that free software is facing in the year 2019 is: how do we make the world of free software accessible to broader audiences? Vast numbers of people are using software every day -- how do we relate our message to something that is important to them, and then welcome them into our community? In order to achieve our mission, we need to invite people and get them to use, create, and proliferate ethical software, until it replaces until all technology is free. Many of the best talks at LibrePlanet 2019 echoed a message for the free software community to focus on building a culture that's respectful and encouraging for new people, respecting a wide variety of personalities and values. The first way to get people invested in the culture of free software is to make it fun, and that was the focus of the morning keynote, "Freedom is fun!", delivered by free software veteran Bdale Garbee. A prominent name in the free software world for decades, Bdale talked about how he has a habit of turning all of his hobbies into free software projects, starting with model rockets.

PyPy v7.1 released; now uses utf-8 internally for unicode strings

The interpreters are based on much the same codebase, thus the double release. This release, coming fast on the heels of 7.0 in February, finally merges the internal refactoring of unicode representation as UTF-8. Removing the conversions from strings to unicode internally lead to a nice speed bump. We merged the utf-8 changes to the py3.5 branch (Python3.5.3) but will concentrate on 3.6 going forward. We also improved the ability to use the buffer protocol with ctype structures and arrays.

PyPy 7.1 As The Well Known Alternative Python Implementation

Last month brought the release of PyPy 7.0 as the JIT-ed performance-optimized Python implementation. PyPy 7.0 brought alpha Python 3.6 support, an updated CFFI module, and other enhancements. Out now is PyPy 7.1 as its successor.

Python’s “else” clause for loops

EuroPython 2019: Presenting our conference logo for Basel

The logo is inspired by graphical elements from the Basel Jean Tinguely Museum and Basel Rhine Swimming. It was again created by our designer Jessica Peña Moro from Simétriko, who had already helped us in previous years with the conference design.