Before changing a filesystem setting, check its current value and identify the device that holds it. tune2fs reads and adjusts stored parameters on supported ext filesystems. I’ll show how to read tune2fs parameters and distinguish an inspection from a metadata change. TL;DR tune2fs reads and changes tunable metadata on ext2, ext3, and ext4 filesystems, so
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Setting up Python on Ubuntu or Debian starts with choosing how to install the tools a project needs. Anaconda Distribution includes conda, which installs packages and manages separate software environments. I’ll explain how to install Anaconda from its Linux shell installer and create a separate environment for a project. TL;DR Install Anaconda Distribution on Debian
Install Anaconda on Debian and Ubuntu Read More »
A Rust project needs a compiler before you can build it on Linux. Rustup is Rust’s installer and toolchain manager, which sets up the compiler and lets you choose a toolchain. I’ll show how to install Rustup and check that the Rust tools are available. TL;DR Install Rustup with Rust’s official shell installer, choose the
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Finding events in an Ubuntu server’s logs starts with a way to collect and search them. The ELK stack is a log-analysis system that uses Elasticsearch to search indexed documents, with other components for processing events and exploring the results. I’ll show you how to install the three packages from Elastic’s signed APT repository and
install elk stack on Ubuntu Read More »
A game file on Linux still needs software that can run the system it came from. RetroArch provides menus and shared settings for emulator modules called cores, and each core runs content for a particular system. This guide shows how to install RetroArch from Flathub and use a core to load game content. TL;DR Install
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A download script may need to use a particular type of IP address each time it runs. Wget can restrict a request to IPv4 or IPv6, or try one family first while leaving the other available. This article shows how to check both families and choose between a one-request option and a setting that applies
wget ipv4: Force Wget to Use IPv4 or IPv6 Read More »
A backup file needs to stay readable to you while its contents remain protected from someone who finds the copy. GPG is a command-line program that creates a passphrase-protected file you can decrypt later. This article shows how to encrypt a file and restore it under a chosen name. It also explains what to check
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Before updating a Java application on Linux, identify which Log4j version it uses. Apache Log4j is a Java logging library that an application can include as a dependency. I’ll show you how to check package records and a JAR manifest, then update the package or application dependency that owns the copy. TL;DR: Check Log4j in
How to Check and Update Your Log4J Version on Linux? Read More »
A new person who needs to sign in needs an account on the Linux system first. The adduser and useradd commands create accounts, and useradd can create a home directory when you request one. I’ll show how to create and verify an account, then add supplementary group access without replacing existing memberships. TL;DR: Add a
Add User Linux: Create Accounts and Set Access Read More »
A Snap app from the Snap Store needs snapd available and running on your Linux system before you can install it. Snap is an application package, and snapd is the background service that manages Snap installations. I’ll show you how to set up snapd for your distribution, then install an app. TL;DR Install snapd for
Install Snap on Linux: snapd and Apps Read More »