Showing headlines posted by bob

Do you want to start a blog to share your latest adventures with various software frameworks? Do you love a project that is poorly documented and want to fix that? Or do you just want to create a personal website? read more

You may have noticed how a lot of your online developer identity is tied to your email address. If someone can gain access to your mailbox, they would be able to do a lot of damage to you personally, and to your reputation as a free software developer. Protecting your email accounts is just as important as protecting your PGP keys.

In this tutorial, we will learn how to achieve high availability of MariaDB using Heartbeat and DRBD on Ubuntu 16.04 server. Heartbeat and DRBD both are used for a cluster solution for any application using two servers. Both servers are work in active and passive mode, one server will work at the same time and another server as a backup server.

At the tail end of 2015, the Raspberry Pi Foundation surprised the world by releasing the diminutive Raspberry Pi Zero. What's more, they gave it away for free on the cover of the MagPi magazine. I immediately rushed out and trawled around several newsagents until I found the last two copies in the area. I wasn't sure what I would use them for, but I knew their small size would allow me to do interesting projects that a full-sized Pi could not satisfy. read more

For any device connected to the internet or a network, it's essential that you log events so you know what the device is doing and can address any potential problems. Increasingly those devices include Internet of Things (IoT) devices and embedded systems. read more

25 years ago, in Bob Young wife's sewing room, the most successful of all Linux and open-source software companies got its start. Young and current Red Hat CEO Jim Whitehurst share their thoughts on Red Hat's journey.

Python's for loops don't work the way for loops do in other languages. In this article we're going to dive into Python's for loops to take a look at how they work under the hood and why they work the way they do. Looping gotchas We're going to start off our journey by taking a look at some "gotchas." After we've learned how looping works in Python, we'll take another look at these gotchas and explain what's going on. read more

Managing an infrastructure of servers is a non-trivial task. When one cluster is misbehaving, logging in to multiple servers, checking each log, and using multiple filters until you find the culprit is not an efficient use of resources. read more

News briefs for March 26, 2018.

Sometimes, while working on the command line, you'll see outputs produced by commands in certain cases are so large that they don't fit into the screen area, and hence, you get to see only the last part of the output (as the initial part scrolls past the screen). Thankfully, there are utilities that are specifically designed to help you in such cases, and one of them is more.

Think it's complex to connect your Python program to the UNIX shell? Think again!

Last week our most popular articles covered a spectrum of fun and practical uses for technology at home and in the workplace. Here's the list of reader favorites from March 19-25.

The Linux Mint project unveiled a “MintBox Mini 2” mini-PC with Linux Mint 19 preloaded on a Compulab Fitlet2 with a quad-core Celeron J3455, up to 8GB RAM and 120GB SSD, dual GbE, wireless, and mini-DP. For years, Compulab’s mini-PCs have offered pre-loaded Linux Mint, in addition to Windows and barebones options...

Bloated rc7 may or not be a sign of delays Linus Torvalds is pretty sure he’ll release version 4.16 of the Linux kernel next week.…

This article describes the changes to the IBM Power Architecture that can be used to provide enhanced protection of virtual machines from other software running on the same system. A new higher privilege mode called Ultravisor mode is being introduced, along with the concept of secure virtual machines (SVMs). This mode is supported by the Protected Execution Ultravisor which will be open sourced. An SVM is protected at rest, when transmitted over a network as a file, and while executing. In this article, we discuss the impact of this new architecture for SVMs. There is near-zero impact on VMs.

When you need to save a code snippet or a URL, an idea or a quote, you probably fire up a text editor or turn to a desktop or web-based note-taking tool. But those aren't your only options. If you spend time working in terminal windows, you can use one of the many note-taking tools available for the Linux command line. Let's take a look at of those four apps. tnote read more

Pydio is a powerful open source web file sync and file share solution software for online collaboration, similar to Gdrive or other online file-sharing services. In this tutorial, we’ll cover the installation and configuration process of the Pydio Community Edition from source on Debian 9 release, on top of LAMP stack.

One of the biggest success stories in open source is its support for users from all around the world. The hunspell spell checker project is a great example.Hunspell accesses dictionaries in dozens of languages to allow users to check the spelling...

So, I’ve taken a look at a number if distributions so far, like Linux Mint, Manjaro and KDE Neon, but I figured I should show another distribution that I’d highly recommend for users who are new to GNU/Linux systems; Elementary OS.

Kali Linux is undoubtedly one of the best operating systems ever built for ethical hackers. It is the most advanced penetration testing operating system based on Linux.... Here is the list of Top 10 among all popular Kali Linux tools.