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today's howtos

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HowTos
  • How to reduce PDF size in Ubuntu

    All of us use LibreOffice or Microsoft Word programs to create documents that can be exported in PDF format. Sometimes, however, these PDF files tend to get too large and unwieldy in size. Many websites have size restrictions on the files you upload; therefore, it causes a real headache when the file is too big. There are several solutions to this problem, which we will discuss and discuss in this article.

  • What Is Kali Undercover? How to Install It on Linux

    Imagine that you're using Kali Linux, your favorite penetration testing OS, in public. You don't want someone to give you strange looks while you're performing a network scan through the terminal, right?

    Offensive Security, the company that maintains Kali Linux, has developed a quick solution for this. Kali's undercover mode can change the appearance of your desktop, making it look like a traditional Windows system, the one which is familiar to most people.

    In this article, you will learn more about Kali Undercover, how to use it, and the steps to install it on your Linux system.

  • How to install MetaTrader 4 with the KOT4X Broker on a Chromebook

    Today we are looking at how to install MetaTrader 4 with the KOT4X Broker on a Chromebook. Please follow the video/audio guide as a tutorial where we explain the process step by step and use the commands below.

  • How to Execute Curl With Kubectl – Linux Hint

    The command-line tool cURL or Curl, which refers to client URL, is used by developers to transport data to and from a server. At its most basic level, Curl allows you to communicate with a server by defining the destination in the form of a URL and the data you wish to transmit. Curl operates on practically every platform and supports a variety of protocols, which include HTTP and HTTPS. This makes Curl suitable for testing connectivity from a local server to most edge devices or from practically any device. Curl is nearly ubiquitous, whether it’s for validating an API’s output before sending it to production or just requesting a response from a website to ensure it’s not down. Curl is a popular and powerful command. It comes in handy when you are reliant on the command line. It comes with a variety of features and supports a range of protocols. That’s a compelling reason to master this command. Curl commands are intended to be used as a technique to test URL connectivity and a data transmission tool. On the client-side, Curl is driven by libcurl, a free URL transfer library. Because it is developed to function without user interaction, this technology is preferred for automation. Curl can transport several files at once. In the following guide, we are going to check out the usage of the curl command using kubectl in Ubuntu 20.04 operating system.

  • How to Enable ZFS Compression – Linux Hint

    The file system compression feature compresses the files stored on the file system automatically to save the precious disk space of your storage device.
    Like many other file systems, the ZFS file system also supports file system-level compression.

    The benefits of ZFS file system compression are:

    Sleepy Saves Disk Spaces: As I have mentioned, when ZFS compression is enabled, the files you store on your ZFS pool/file system are compressed to save disk space.

    ii) Reduces File Access Time: Processors these days are very fast. They can decompress files in real-time. So, it takes less time to decompress a file than to retrieve it from a storage device (i.e., hard drive). As compressed files take less storage area, they can be retrieved faster from the storage device (i.e., hard drive) than uncompressed files and can be decompressed on the fly. Overall, this reduces file access time and improves the file system performance.

    This article will show you how to enable compression on your ZFS pool and file systems. I will also show you how local and inherited compression of ZFS pool and file systems works. So, let’s get started.

  • How Do I Check My UFW Log? – Linux Hint

    This tutorial explains how to enable UFW (Uncomplicated Firewall) logging and how to read the logs. A firewall is critical to maintain security on your linux and ubuntu systems.

    After reading this tutorial, you will know how to find and read UFW logs. For a complete UFW tutorial, you can read Working with Debian Firewalls (UFW).

  • How to open Google Chrome from the Terminal in Ubuntu? – Linux Hint

    Although most versions of Ubuntu come with Mozilla Firefox installed as the default browser, having Google Chrome installed has its fair advantages. Google Chrome has been the superior choice when it comes to browsing on a desktop, having support for most plugins and a variety of add-ons, the likes of which cannot be found on any other browser.

    This makes Google Chrome an ideal browser and a must-have no matter which operating system you are running. This guide will help you install Google Chrome on Ubuntu and instructions to use it with the help of the Terminal.

    Although this guide is meant for versions of Ubuntu, it should work the same way for any Linux Distribution.

  • How to limit ssh with UFW – Linux Hint

    This tutorial explains how to limit the ssh access using UFW (Uncomplicated Firewall), denying connections from IP addresses who failed to establish a minimum of 6 connections within 30 seconds.

    This feature is very useful for protocols supporting login authenticated connections such as ssh or ftp among others, preventing brute force attacks.

  • How to add secondary IP address on RHEL/CentOS 8

    Sometimes, you might have to assign a secondary IP address to a single Network Interface Card (NIC) on RHEL 8 and CentOS 8 systems.

    There are numerous reasons for this and some of them, such as application requirement or installation of SSL certificate.

    There are two ways to add a secondary IP address to the RHEL 7 and CentOS 7 network interface.

  • Avoid Head Spinning

    If you’re like me and constantly keep triggering it by accident (Blender zooming being Inkscape’s panning having to do with it), you’ll be happy to learn it can be completely disabled. Sip on your favorite beverage and dive into the thick preferences dialog again (Edit>Preferences), this time you’re searching for Lock canvas rotation by default in the Interface section. One more thing that might throw you off is that you need to restart Inkscape for the change to have any effect.

More in Tux Machines

Fairphone 4 5G Revealing Snapdragon 750G SoC Spotted on Geekbench, Launch Expected Soon

We are aware of the fact that Fairphone is prepping up for the launch of the Fairphone 3 successor – the Fairphone 4 5G (FP4). The device’s key specifications and renders were revealed last week, courtesy of a retailer listing. As per the preliminary retailer listing, the Fairphone 4 5G is expected to pack 6GB of RAM and 128GB/256GB storage. The hardware specs of the device remained a mystery up till now. However, these details now are out courtesy of the Geekbench listing. MySmartPrice is the first to spot the Fairphone 4 Geekbench listing. The test results reveal that the device will pack Snapdragon 750G SoC and 6GB of RAM. Read more

Günther Wagner: GNOME Builder 41 Highlights

Builder now maintains a private Flatpak installation to install SDKs and SDK extensions that are not available in the user’s Flatpak installation. This means Builder will no longer add flathub or gnome-nightly to your user’s Flatpak installation. Builder now uses an out-of-process Flatpak helper (gnome-builder-flatpak) to vastly improve its ability to track and resolve SDK extensions. This will improve the situation for applications requiring Rust, LLVM, and others going forward. You can update your SDKs and dependencies together using the “Update Dependencies” button in the build popover. More information can be found in Christian’s blog post. Read more

Games: Steam Deck, FUTEX2, and Anti-Cheat Support

  • Steam Deck, Linux and Mac Get Easy Anti-Cheat Support

    Epic Games has just released an update to its Easy Anti-Cheat software that will add support for the Steam Deck, as well as Linux and macOS operating systems. According to an Epic blog post today, the new update is now available to developers for free and is designed to work with Wine and Steam's Proton compatibility layer to ensure all platforms under Linux get full anti-cheat support. This is great news for Linux Gamers and for the new Steam Deck, since the anti-cheat services were previously locked to Windows operating systems. Even though the games could be fully functional in a compatibility environment such as Proton or Wine. Now, more platforms have the capability to run all multiplayer games with Epic's popular anti-cheat software, as long as developers enable Linux and Mac support. This is especially important for Valve's Steam Deck, which counts on its SteamOS being able to run the entire Steam library. Obviously, lacking anti-cheat support could have been a major problem for the new console.

  • Valve's Steam Deck supports dual boot and booting from a microSD card - Liliputing

    The Valve Steam Deck is expected to begin shipping in December to customers who pre-orders the handheld gaming computer for $399 or more. But ever since introducing the Linux-powered PC with a custom AMD processor this summer, Valve has been getting a lot of questions.

  • Updated "FUTEX2" futex_waitv Patches Posted To Address Latest Feedback - Phoronix

    The promising FUTEX2 work focused on improving the Linux performance for running Windows games via Wine/Proton by extending futex to wait on multiple locks is still moving forward. Last month the work was revised in simpler form by just focusing on the new "futex_waitv" system call and postpone additional improvements planned around variable-sized futexes, NUMA-awareness, and more. That additional work will come later while the immediate focus is on the "futex_waitv" system call to address the needs of Wine/Proton by better matching Windows' WaitForMultipleObjects behavior with more efficient emulation.

Epic Boost to GNU//Linux Gamers

  • Epic Online Services launches Anti-Cheat support for Linux, Mac, and Steam Deck - Epic Online Services

    Easy Anti-Cheat now supports all major PC operating systems, including Linux, Mac, and Steam Deck.

  • Epic Games Announces Easy Anti-Cheat For Linux - Including Wine/Proton - Phoronix

    Not too surprising given the Steam Deck is inching closer towards release and we've known Valve has been working to improve the anti-cheat situation for games on Linux, but today EAC owner Epic Games officially announced Easy Anti-Cheat for both Linux and macOS. Easy Anti-Cheat is one of the popular anti-cheating solutions used by a number of Windows games. Epic Games is now making EAC available for Linux and macOS. Plus they are also making it supported under Wine/Proton too.

  • Epic Games announce full Easy Anti-Cheat support for Linux including Wine & Proton | GamingOnLinux

    Today, Easy Anti-Cheat from Epic Games / Epic Online Services has officially announced a full expansion for Linux including native builds and Wine + Proton. This is big for Linux Gaming and the Steam Deck. For those who don't know, Epic Games owns Easy Anti-Cheat and earlier this year they made it free for all developers making Windows games. Today this has been expanded to fully support developers doing native Linux games (and macOS too). Not only that, this is the big one we've been waiting for — they've also expanded Easy Anti-Cheat support officially for the Wine and Steam Play Proton compatibility layers.

  • Epic Games makes Easy Anti Cheat available for Linux, paving the way for Steam Deck | Windows Central

    One of the big flies in the Steam Deck ointment has always been how anti-cheat software will be handled. The truth is that a lot of the popular Windows games that can't be played on Linux through Steam's Proton Compatibility layer, or through WINE, are because of anti-cheat software. The first big step forward has just happened, though, right as game developers are starting to receive their Steam Deck dev kits. Epic Games, owner of Easy Anti Cheat, has announced that the software is now compatible with Linux, including WINE and Proton, as well as macOS. And all for the low price of free.