Showing headlines posted by linuxer

JSON is the universal format for passing data between programs and/or languages, especially on the web. Python has excellent built-in support for converting data from a Python program into JSON for another program to use.

It's be convenient to be able to retrieve the latest weather forecast right from your terminal without opening up a web browser, wouldn't it? What about scripting it or setting a cron job? Well, you can.

Sling TV is a popular alternative for cord cutters looking to be free of their cable bill while keeping their favorite TV channels. The service doesn't support Linux, though, at all. Furthermore, by default it is available within United States only.

Sometimes we have to install programs from source: maybe they are not available through standard channels, or maybe we want a specific version of a software. GNU stow is a very nice symlinks factory program which helps us a lot by keeping files organized in a very clean and easy to maintain way.

Are file transfers slow on your network? Are you constantly passing data between your computers? Well, maybe jumbo frames are for you. Jumbo frames are larger than standard network packet payloads. Normally the payload size or MTU(Maximum Transfer Unit) is set to 1500 bytes. Jumbo frames can support to 9000 bytes per packet. Jumbo frames decrease the overhead associated with transferring files by limiting the number of packets that your networking equipment needs to process.

Lots of people like graphical utilities for managing their computers, but plenty don't too. If you prefer command line utilities, managing WiFi can be a real pain. Well, it doesn't have to be. wpa_supplicant can be used as a command line utility. You can actually set it up easily with a simple configuration file.

If you're connected to a VPN, you need a killswitch. No, it's not as metal as it sounds. It's just a mechanism that stops your Internet connection when you're disconnected from the VPN. It protects you from inadvertently leaking sensitive information onto the Internet when the VPN connection drops.

World of Warcraft has been around for almost thirteen years, and it's still easily the most popular MMORPG. Unfortunately, after all that time Blizzard never released an official Linux client. It's not all bad, tough. Wine has you covered.

This guide aims to provide a quite complete overview of PDO, guiding the reader step by step from the establishment of a connection to the database, to the choice of the most appropriate fetch mode, showing how to create prepared statements and describing the possible error modes.

When you fist log in to a terminal on a Unix system, Linux included, you are usually greeted by that system's message of the day(MOTD). The message of the day, gives you important information about the system or just messages from the system admin. Of course, if you are are the system admin, it's up to you to set that message. If it's your own system, you can get creative with your message and include any information that you choose.

It's hard not to have heard about Ethereum by now. It's the hottest new cryptocurrency that's still very much so on the rise. Unlike Bitcoin, Ethereum is still practical to mine, and tons of people are getting in on it. If you've been considering mining Ethereum, this guide will help you get started using open source tools and Ubuntu.

If you ask just about any Linux user, they'll agree that Skype is pretty terrible. There's not a whole lot to like there, especially since the Linux client is just a poorly maintained wrapper for the web app.

Matrix is an up-and-coming chat protocol that provides a real alternative to proprietary solutions like Slack. Unlike Slack, Matrix is free, open source, and completely decentralized. With Matrix, you own your chat.

Most people have terrible passwords, and WiFi is no exception. Your WiFi password is your primary line of defense against unwanted access to your network. That access can result in a whole host of other nasty things because an attacker can monitor the traffic on your network and even gain direct access to your computers.

MAC address whitelisting sounds like a great way to prevent unauthorized access to your wireless network, but it doesn't work. The purpose of this guide is to demonstrate exactly how easy it is to spoof a whitelisted MAC address and gain access to a restricted network.

AMD's Ryzen CPUs were designed to be overclocked. They're excellent at it, and they benefit greatly from it. Most Ryzen CPUs can even overclock a few hundred MHz using a stock cooler. That's impressive no matter how you look at it.

The open source AMDGPU drivers don't have a fancy GUI interface that lets you overclock your card. Actually, they don't come with any kind of control center at all. That's alright, though, you can still overclock your card by modifying a couple of values in configuration files, a perfectly Linux solution if you think about it.

Modifying a bash script behavior via runtime options, just like we normally do with command line programs, can be very useful. The bash shell provides the getopts builtin command, a standard way to achieve this. How to use it is what we will learn in this tutorial.

In this tutorial we are going to learn how to restrict access to a Linux machine by interacting with two files: /etc/securetty, which let us specify from what console it's possible to login directly as root, and /etc/security/access.conf, in which we can set some rules to restrict access for specified users or groups from certain origins.

The following post is a little bit different from my other posts as it does not solve any of your Linux configuration problems. Apologies there! This post is an attempt to kill multiple birds with one stone, hence expose children to a command line, avoid web flash and ads driven multiplication practice tests online and most importantly gain some multiplication skills along the way.