today's howtos

• Steinar H. Gunderson - Speeding up Samba AD

  One Weird Trick(TM) for speeding up a slow Samba Active Directory domain controller is seemingly to leave and rejoin the domain. (If you don't have another domain controller, you'll need to join one in temporarily.) Seemingly, not only can you switch to LMDB (which has two fsyncs instead of eight on commit—which matters a lot, especially on non-SSDs, as the Kerberos authentication path has a blocking write to update account statistics), but you also get to regenerate the database, giving you the advantage of any new indexes since last upgrade.

• How to Change File Extensions on Linux

  File extensions help both operating systems and users distinguish between different file formats and understand the contents stored inside them. When you see a file with the ".txt" extension, you instantly know it contains text data. Similarly, ".exe" file is a Windows executable and ".sh" files are Linux shell scripts. But what if you want to change these extensions for some reason? Perhaps you need to rename a text file to a Bash script. Simply writing the code in a text file won't do the job. On Linux, changing file extensions is much easier than you might think.

• How to Install and Set up PostgreSQL Database on Ubuntu 22.04 LTS (Jammy Jellyfish) – LinuxWizardry

  PostgreSQL is a free and open-source relational database management system that allows both SQL and JSON querying. With over 30 years of active development, it has gained a solid reputation for its reliability, data integrity, extensibility, ACID compliance, and robust features. It allows you to create your own data types, define custom functions, and write different programming language codes without recompiling your database. It is compatible with all major operating systems including Windows, Linux/UNIX, Mac OS, IRIX, Solaris, etc. This tutorial will teach you how to install and set up PostgreSQL on the Ubuntu system.

• How To Install PlayOnLinux on Ubuntu 22.04 LTS - idroot

  In this tutorial, we will show you how to install PlayOnLinux on Ubuntu 22.04 LTS, as well as some extra required packages by PlayOnLinux

• Setting Up Environment Variables on Ubuntu – TecAdmin

  An environment variable contains a value, that is used to change the behaviors of the processes at run time. Similar to the other operating systems, we can also set the environment variables on a Ubuntu system.

• How to Hide Lock Screen option from System Menu in Ubuntu 22.04 | UbuntuHandbook

  Want to hide the lock screen option from the upper-right corner system menu? Here’s how to do the trick in Ubuntu 22.04 LTS. For Ubuntu, Fedora and other Linux with GNOME desktop, the screen lock can be disabled either totally or only from the system menu.

Free, Libre, and Open Source Software

• Rygel is an open-source free UPnP Media Server

  Rygel is released under the LGPL-2.0 License

• Habitica is more than a gamified habit tracker app, it is an RPG game

  Code is GPL v3 licensed: This Source Code is subject to the terms of the GNU General Public License, v. 3.0.

• Citybound is an open-source city sim game with Rust

  Citybound is released under the AGPL-3.0 License.

• Skytable is a NoSQL real-time Database built with Rust

  This project is licensed under the AGPL-3.0 License.

• DigitalOcean Functions Expands the Serverless Cloud Landscape

  DigitalOcean Functions brings new open-source-based serverless capabilities to the growing cloud provider that targets SMBs.

Ole Aamoton GNOME Voice, GNOME Radio, and Gingerblue

• Voice 0.0.4 for GNOME 42

  Voice will let you listen to and share short, personal and enjoyable Voicegrams via electronic mail and on the World Wide Web by GNOME executives, employees and volunteers. Xiph.org Ogg Vorbis is a patent-free audio codec that more and more Free Software programs, including GNOME Voice (https://www.gnomevoice.org/) have implemented, so that you can listen to Voicegram recordings with good/fair recording quality by accessing the Voicegram file $HOME/Music/GNOME.ogg in the G_USER_DIRECTORY_MUSIC folder in Evolution or Nautilus.

• Radio 16.0.43 for GNOME 42 (gnome-radio) – Ole Aamot

  New stations in GNOME Radio version 16.0.43 is NRK Folkemusikk (Oslo, Norway), NRK P1+ (Oslo, Norway), NRK P3X (Oslo, Norway), NRK Super (Oslo, Norway), Radio Nordfjord (Nordfjord, Norway), and Radio Ålesund (Ålesund, Norway).

• Gingerblue 6.0.1 with Immediate Ogg Vorbis Audio Encoding

  Gingerblue 6.0.1 is Free Music Recording Software for GNOME available under GNU General Public License version 3 (or later) that now supports immediate Ogg Vorbis audio recordings in compressed Ogg Vorbis encoded audio files stored in the $HOME/Music/ folder. https://download.gnome.org/sources/gingerblue/6.0/gingerblue-6.0.1.tar.xz

GUADEC 2022 Conference Takes Place July 20–25 in Guadalajara, Mexico, for GNOME 43

GUADEC 2022 is the first in-person GUADEC event in the last two years due to the COVID-19 pandemic and associated traveling restrictions and health safety measures, and it also marks GNOME’s 25th anniversary.