 Postfix is a mail transfer agent used for electronic mail routing and delivery. Here's a detailed explainer of its working.
Familiarity with email architectures is essential to be able to respond to various security and performance issues about mailing systems. When mailing systems and mail architectures are examined, it's found that one of the most important security issues is with mail transfer agents (MTA).
Postfix is one of the most secure and configurable mail transfer agents. Here's everything you need to know about Postfix and its architecture.
There are many online job sites for technologists. They include Dice, The Ladders, and Crunchboard. But, while there are open-source programs for job sites, such as Jobberbase, there are only a handful of sites specializing in open-source jobs. Now, there's a new entry trying to become The site for open-source technology jobs: Open Source JobHub.
Linux New Media USA, the open-source publishing company behind Linux Magazine and FOSSlife, launched the new global job board to help people find their place in the global open-source ecosystem.
The jobs are out there. The Linux Foundation and edX, the leading massive open online course (MOOC) provider, found in their 2021 Open Source Jobs Report more demand for top open-source workers than ever. Besides that, 92% of managers are having trouble finding enough talent and many of them are also struggling to retain their existing senior open-source staffers.
The 4th-generation Kubuntu Focus M2 mobile workstation promises substantial improvements across almost all components when compared with previous Kubuntu Focus M2 generations. For example, it now features a 15.6-inch QHD 1440p (2560Ãâ1440 resolution) IPS display with a whopping 165Hz refresh rate and 100% DCI-P3 color coverage (205 DPI), bigger speakers for crisper and louder sound with more bass, and faster charging with a 230W charger.
In this video, I am going to show an overview of Ubuntu MATE 22.04 LTS and some of the applications pre-installed.
I'm announcing the release of the 5.17.6 kernel.
All users of the 5.17 kernel series must upgrade.
The updated 5.17.y git tree can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-5.17.y and can be browsed at the normal kernel.org git web browser: https://git.kernel.org/?p=linux/kernel/git/stable/linux-s...
thanks,
greg k-h
99 KLOC (53 KLOC without libraries) is relatively ... a lot, for a Gemini client.
Sometimes I hate numbers. I've seen many products with good test coverage (> 80%), which don't work at all or have rotten tests that pass without testing anything. And most software projects can be "cleaned up" to drastically reduce their LOC counters: sometimes, without any change in binary size or general clarity. Yes, LOC is a bad indicator of code quality or readability: you can always find counter-examples, and I'm not a big fan of dwm's coding style.
[...]
Those who find Lagrange bloated should blame OpenSSL and SDL, and client developers definitely have multiple options to choose from. (Trying the console-based Lagrange is in my TODO list.)
Lagrange's new support for the spartan protocol has generated some discussion on whether this should count as "bloat".
[...]
Solderpunk's Agena is a gemini-to-gopher proxy. It acts as a gemini server, but if it's sent a gemini request for an URI with scheme 'gopher', then it sends a gopher request to the corresponding server and translates the response into gemtext (or other appropriate mimetype) or a gemini error code, and serves it as a response to the gemini request.
Apparently Lagrange is bloated.
Who cares?
This isn't the WWW. There is not a dearth of functional browsers. Use a different one if you don't like Lagrange.
I'm being snarky, but also, I sincerely mean it. The more browsers we use, the less the ecosystem comes to revolve around any one in particular. Use Kristall. Use Amfora. Use a browser you like instead of one you don't.
This tutorial will be helpful for beginners to download and install hplip 3.22.4 on Ubuntu 20.04 LTS, Linux Mint 20.3, and other Linux distributions.
HPLIP – HP Linux Image and Printing, developed by HP for Printing, scanning, and faxing with HP inkjet and laser-based printers on Linux platforms.
The latest version of HPLIP 3.22.4 contains new Distro support and added support to the new printers and the HPLIP installer is available for download.
In this tutorial, we will show you how to install Neofetch on Ubuntu 22.04 LTS. For those of you who didn’t know, Neofetch is a cross-platform and easy-to-use system information command-line script The Neofetch command display brief info about the respective system. It displays info such as Model, OS, Kernel, CPU, GPU, Memory, Uptime, Packages, Shell, Resolution, DE, WM, WP Theme, Theme, Icons, and Terminal.
This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of the Neofetch command-line system information on Ubuntu 22.04 (Jammy Jellyfish). You can follow the same instructions for Ubuntu 22.04 and any other Debian-based distribution like Linux Mint, Elementary OS, Pop!_OS, and more as well.
If you're looking for an easier way to install third-party software on Ubuntu, Martin Wimpress has you covered with deb-get. Jack Wallen shows you how to install and use this handy tool.
Docker lets you run your applications in containers as they are more resource-friendly. Ubuntu 22.04 LTS is the latest stable version of the Ubuntu operating system. In this post, we will show you the process of installing Docker on Ubuntu 22.04 LTS.
Trying out different Gnome Extensions frequently? The new “Extension Manager” app is really a good choice to make life easier!
We usually install extensions by browsing through the Gnome Extension website and using the on page on/off switch. Then, manage the settings via a separate ‘Extensions’ app. However, Ubuntu’s pre-installed Firefox does not support the process since it’s a Snap package.
Without installing anther browser package and opening the site time by time, a new project “Extension Manager” has been created as an “App Center” for Gnome Extensions.
Java is a free, open-source, high-level, object-oriented programming language that is designed to have as few implementation dependencies and it can run on all major operating systems that support Java without the need for recompilation.
Java 17 LTS is the latest long-term support release that includes security and performance updates, and of-course bug fixes.
Zabbix is ââ¬â¹Ã¢â¬â¹a complex for monitoring your server. Zabbix will also allow you to track the status of a computer network and network equipment. Zabbix is ââ¬â¹Ã¢â¬â¹also often used to monitor web servers. In this article, we will look at how to put Zabbix on the lamp stack. Today, we learn how to install zabbix on Debian and Ubuntu Linux. Let’s proceed with the installation...
Node.js is a JavaScript runtime and it is built on Chrome’s V8 JavaScript engine. In this Ubuntu 22.04 LTS tutorial post, we will show you the easy way to install Node.js on Ubuntu 22.04 LTS. There are multiple ways to install Node.js on Ubuntu 22.04 LTS. Node.js version 12.22.9, is included with Ubuntu 22.04 LTS.
Get the simple steps in this tutorial to install Thunderbird on Ubuntu 22.04 LTS Jammy JellyFish using GUI and command terminal.
Thunderbird is Mozilla’s developed open source email client available for Windows, macOS, Linux, and other popular operating systems. The secure and free e-mail client “Mozilla Thunderbird” supports all common e-mail accounts, can encrypt outgoing messages on request, offers an integrated RSS reader, and is highly expandable. If you want, you can even use Thunderbird as a Twitter client.
For better organization, you can also tag individual mails similar to photos with image managers. Thanks to the integrated add-on manager, you can find and install new extensions in no time. It also offers a service called the YouSendIt service to send large files.
The Wine project has released development version 7.8, which arrives with some tweaks to drivers that could make Windows games work better on Linux. The move could ultimately make Linux more attractive to gamers, including on Valve's Steam Deck.
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WINE is a compatibility layer that allows Windows programs to run on Linux and other non-Windows platforms like macOS and BSD-based systems, as well as on the Raspberry Pi. The main focus of the 7.8 release is enhancements to graphics and sound drivers for the system to improve compatibility with Windows software.
The X11 and OSS drivers have been reworked from the standard Linux ELF format to a Portable Executable (PE) format. This means that graphics and sound drivers will work more like Windows drivers that Windows apps will expect. In simpler terms, graphics-and-sound-heavy Windows programs will run more reliably with Wine, especially games.
As a board, we have been working on several initiatives to make the Foundation a better asset for the GNOME Project. We’re working on a number of threads in parallel, so I wanted to explain the “big picture” a bit more to try and connect together things like the new ED search and the bylaw changes.
We’re all here to see free and open source software succeed and thrive, so that people can be be truly empowered with agency over their technology, rather than being passive consumers. We want to bring GNOME to as many people as possible so that they have computing devices that they can inspect, trust, share and learn from.
In previous years we’ve tried to boost the relevance of GNOME (or technologies such as GTK) or solicit donations from businesses and individuals with existing engagement in FOSS ideology and technology. The problem with this approach is that we’re mostly addressing people and organisations who are already supporting or contributing FOSS in some way. To truly scale our impact, we need to look to the outside world, build better awareness of GNOME outside of our current user base, and find opportunities to secure funding to invest back into the GNOME project.
Shortwave internet radio player has reached version 3.0, adding new UI improvements and supporting the new GNOME 42 dark mode.
Internet radio is a digital audio service transmitted via the Internet. The internet radio stations have a huge advantage – you can access them from any geographic location.
Of course, you may listen to them using a variety of tools. Let us introduce you to Shortwave – one of the best apps for listening to internet radio. The good news is it’s open-source and completely free.
Shortwave is a GTK-based internet radio player written in Rust, created as the successor of Gradio, and uses radio-browser.info as its radio stations database, which features more than 30,000 radio stations.
MagicMirror€² is an open source modular smart mirror platform. With a growing list of installable modules, the MagicMirror€² allows you to convert your hallway or bathroom mirror into your personal assistant. MagicMirror€² is the winner in the official Raspberry Pi magazine’s 50th issue celebration feature voted by the Raspberry Pi community.
This plugin installs in a few steps the MagicMirror€² project on top of Raspberry Digital Signage. Code is built by the creator of the original MagicMirror with the incredible help of a growing community of contributors.
Arch Linux is known as an operating system for pros, for those who really know the ins and outs of Linux. If you want Arch that requires a bit less skill, there’s always the likes of Manjaro. But if you want the real deal, know that it’s going to be a bit of a challenge from the outset.
However, the developers of Arch Linux have finally added a tool that makes the installation process a bit easier. Before you get too excited, no, it’s not a beautiful GUI that makes it so anyone (with even only a cursory knowledge of Linux) can install with ease. Arch Linux still relies on a text-based installer. However, this new text-based menu system does guide you through the installation of Arch Linux in such a way that, once you get the hang of it, you shouldn’t have any problems finishing the job.
How does it work? Let me show you.
Over the past years, systemd gained a number of components for building Linux-based operating systems. While these components individually have been adopted by many distributions and products for specific purposes, we did not publicly communicate a broader vision of how they should all fit together in the long run. In this blog story I hope to provide that from my personal perspective, i.e. explain how I personally would build an OS and where I personally think OS development with Linux should go.
I figure this is going to be a longer blog story, but I hope it will be equally enlightening. Please understand though that everything I write about OS design here is my personal opinion, and not one of my employer.
For the last 12 years or so I have been working on Linux OS development, mostly around systemd. In all those years I had a lot of time thinking about the Linux platform, and specifically traditional Linux distributions and their strengths and weaknesses. I have seen many attempts to reinvent Linux distributions in one way or another, to varying success. After all this most would probably agree that the traditional RPM or dpkg/apt-based distributions still define the Linux platform more than others (for 25+ years now), even though some Linux-based OSes (Android, ChromeOS) probably outnumber the installations overall.
And over all those 12 years I kept wondering, how would I actually build an OS for a system or for an appliance, and what are the components necessary to achieve that. And most importantly, how can we make these components generic enough so that they are useful in generic/traditional distributions too, and in other use cases than my own.
A list of 10 best Fedora 36 Features that you should know about before you try this version of Fedora Linux.
Two worlds are meeting as parallel technologies advance: cloud-native applications, and the disaggregation of functions for radio access networks (RANs). In both cases the platform technologies are mature enough to converge in a production environment. This unlocks new opportunities for communications service providers (CSPs) to gain competitive edge through faster innovation and greater flexibility, and they are exploring these in earnest. Nokia’s Jane Rygaard, Head of Dedicated Wireless Networks and Edge Clouds, and Red Hat CTO Chris Wright discussed this recently in an interview with Telecom TV: Accelerating cloud RAN technology innovation in the 5G era.
People who really believe in free software don't just vanish like this.
When professional women come to a Debian event and they see all the women there are already part of a couple it gives them a very bad feeling.
The promotion of non-developing developers has benefited a lot of girlfriends who acquired voting rights over the heads of real developers.
Debian is spending all this money on legal fees to cover up these relationships...
[...]
On 5 December 2018, the Debian leader's ex-girlfriend, Molly de Blanc, who never did any technical work, was given the highest rank, Debian Developer. How would Lucy Wayland and all the other women feel? When women see a promotion like that, they feel that their skills are being ignored and the only way to get ahead is to sleep with somebody.
Dubbed “Impish Indripo”, Ubuntu 21.10 was released on October 14th, 2021, and it’s an interim release supported with software and security updates for only nine months.
Canonical already slated the end-of-life for Ubuntu 21.10 on July 14th, 2022, two months from the moment of writing this article, to give users enough time to upgrade their installations to the latest Ubuntu release, in this case, Ubuntu 22.04 LTS (Jammy Jellyfish).
These days, supercomputing has become a synonym for high-performance computing. However, they are not exactly interchangeable: supercomputers and supercomputing generally refer to the larger cluster deployments and the computation that takes place there, while HPC mainly refers to a computation that’s performed using extremely fast computers on clusters that can vary from small scale HPC clusters to large supercomputers. Most often HPC clusters and supercomputers even share most of the same architecture and are both being built out of commodity servers. But of course, some systems are still being built to reflect a closer representation of supercomputing as it was known in the past.
Historically, supercomputing was a type of high-performance computing that took advantage of a special set of systems. Similar to the HPC clusters of today, they worked on massively complex or data-heavy problems, although comparing the two is a little bit like comparing apples to pears when it comes to computing power. Even a mere mobile phone today is more powerful than the first supercomputers. For example, some mobile phones can reach a few gigaflops whereas the CDC 6600 was estimated to deliver about 3 megaflops.
However, at the time, supercomputers were more powerful than anything else on the market, very expensive to build and develop, and their architecture was far superior to the personal computers that were available at the time. That is why they were called supercomputers. They were the original HPC systems and were generally reserved for the realm of governments and research universities. Unlike current HPC clusters, supercomputers were quite different in terms of architecture. Ultimately, they were huge multi-processor systems with very specialised functionality.
 The Banana Pi BPI-R2 Pro is a single-board computer with a Rockchip RK3568 processor, 2GB of LPDDR4 memory, 16GB of eMMC storage.
But what sets this little computer apart from most single-board PCs is that it’s designed for use as a router. It has five Gigabit Ethernet ports and connectors that you can use to add an optional wireless card.
Two years before I started working on cameras for the Librem 5, I thought the work would go something like this: first, write a driver, then maybe calibrate the colors, connect to the camera support infrastructure, and bam! PureOS users on the phone would then do teleconferences with Jitsi or snap selfies with Cheese, just like they can on laptops.
The title of this blog post already gives away what happened. I wrote a driver and connected it up, yet teleconferences remain in the future. In fact, our version of Megapixels is the only app that can shoot photos on the Librem 5 today, and that’s because it received special attention. How come? Aren’t cameras pretty simple in the end? Light in, pixels out. That’s pretty plug-and-play!
Well actually, no. Cameras can be made of a multitude of components, and light sensors are just one piece of the puzzle. There are cameras that output raw light values, but the whole module also includes mechanical parts like a flash light, focus motor, or one for zoom, or maybe active image stabilization actuators. There are also Image Signals Processors (ISPs) which can do a multitude of tasks, like debayering, denoising, lens correction, color balance, color conversions, and more.
Smart Bee Designs’ Bee Motion is an ESP32-S2 board with a PIR motion sensor, some GPIOs for expansion, and promising over a year of battery life under the right circumstances.
If the name “Bee Motion” rings a bell, it’s because we covered the Bee Motion Mini board last month with an ESP32-C3 processor and a PIR sensor, but no USB port for programming and no expansion ability. It was just designed to be used as a battery-powered wireless PIR motion sensor. The Bee Motion expands the use cases of the solution, although it only features WiFi connectivity, and loses Bluetooth LE.
The workaround involves using a Rasberry Pi with an LTE modem and a Wi-Fi access point, running a custom Android-based firmware, as well as a micro-HDMI to HDMI cable and Ethernet cable. As demonstrated in a YouTube video, the in-car browser is used to connect to the Rasberry Pi and display the ââ¬Åââ¬ÅCarPlayââ¬Åââ¬Å interface on the Tesla's screen, where Apple apps including Maps and ââ¬ÅApple Musicââ¬Å function as expected. The system works while driving, and can also be controlled with the media buttons on the Tesla's steering wheel.
Fancy golfing simulators are excellent for learning the best techniques such as balance and how to hold a club properly. However, their large cost puts them out of the reach of most people, so Nick Bild decided to create a far cheaper alternative that can still be beneficial. His Golf Ace system relies on a specially modified putter that runs a machine learning algorithm to give feedback about the quality of the putt.
Habo is released under the GPL-3.0 license.
Welcome, May --we're opening the month with another great week. Here's what the Apache community has been up to
After years of stumbling without a certain destination, it seems that the situation of Thunderbird is clearing up and that the project has ambitious plans, since its arrival on Android could take place sooner rather than later, according to one of the main people in charge of the application.
The story comes from a Twitter conversion featuring Adam Overa, a staff writer at Tom’s Hardware, and Jason Evangelho, a well-known Linux popularizer and recently Thunderbird marketing manager.
Overa asked in response to the tweet in which Evangelho announced his new position if it was possible to polish the user interface and have a mobile application. Evangelho responded by saying that he was going to ask his now colleagues about the possibility of the email client reaching mobile phones, and Ryan Lee Sipes , manager of product and business development at Thunderbird, appeared there, saying that the mobile application is in road .
The reason why we have said Android at the beginning instead of mobile phones is because Sipes retweeted a montage of Overa in which the phrase “release APK file” , or what comes to the same thing, a installation package for Android.
From having around three-quarters of the Java market in 2022, its share has now fallen to just over a third. In the same period Amazon has gone from a 2% share to 22%.
In the process of writing an SSH agent for Himitsu, I needed to implement many SSH primitives from the ground up in Hare, now available via hare-ssh. Today, I’m going to show you how it works!
The other night in Barcelona I was walking around the gothic quarter. I just got done eating some halal food from a place someone had recommended to me, and after miscommunicating to the staff that I wanted it for take out instead of dine in, I was forced to gobble my delicious little falafel in the street. No water either. I was so worried I may need some water that it occupied my mind a bit more than the food did. You know when you eat too fast and you get a hard lump of food stuck in your chest? That's what I was thinking about. After doing some visual meditations with Chris, I realized that it was perfectly possible for me to ignore my senses. I think our minds only have a set amount of space to store conscious perception, one that's shared between our 5 senses and our thoughts. If one is full enough in thought, the stream of information from your senses may get tossed aside for lack of room, even if it's a delicious steaming falafel in Spain.
Rick & Morty's parallel episodes show myriad alternative versions. There's Fat Rick, Juggling Rick, et c.
This is an amazing piece of fine engineering, with sustainability in mind. In addition, these sandals are very economical: in the long term, they're extremely long-lasting. The warranty covers the things that matter (my sandals are still covered), and I've heard of people who received a new pair from the factory, after phasing out an old pair in favor a new but defective one. In the short term, they're relatively affordable, especially if you buy them during the annual summer discounts. (However, I don't know if they're available at the same price internationally, and it's not surprising that comparable imported sandals, like Teva's, tend to cost cost much more here.)
So I had interview today.
I was asked some very basic programming questions. I barely could answer half of them...
I could go over what I asked but it was basically "what does keyword mean" or "what is difference between x and y"
I didn't really know many of it. I am bit bummed.
I was never really taught these things, nor never really learned them on my own.
Security updates have been issued by CentOS (firefox and thunderbird), Debian (ecdsautils and libz-mingw-w64), Fedora (cifs-utils, firefox, galera, git, java-1.8.0-openjdk, java-11-openjdk, java-17-openjdk, java-latest-openjdk, mariadb, maven-shared-utils, mingw-freetype, redis, and seamonkey), Mageia (dcraw, firefox, lighttpd, rsyslog, ruby-nokogiri, and thunderbird), Scientific Linux (thunderbird), SUSE (giflib, kernel, and libwmf), and Ubuntu (dbus and rsyslog).
This round of commitments is led by two new premier members, Atlassian and Sonatype, who will join the OpenSSF governing board. New general member commitments come from Arnica, Bloomberg, Comcast, Cycode, F5 Networks, Futurewei Technologies, Legit Security, Sectrend, SUSE, and Tenable.
Researchers have uncovered a highly-evasive Chinese surveillance tool using the Berkeley Packet Filter (BPF). The malware, dubbed BPFDoor, is present on “thousands” of Linux systems, its controller has gone almost completely unnoticed by endpoint protection vendors despite it being in use for at least five years.
It’s been at least 485 days since we and local partners first tried to contact companies that distribute mass surveillance technology in Latin America. In August 2021, jointly with Asociación por los Derechos Civiles (ADC), the Laboratório de Políticas Públicas e Internet (LAPIN), and LaLibre.net (Tecnologías Comunitarias), we launched a report on some of the companies deploying such tech in Argentina, Brazil, and Ecuador, drawing attention to the opacity of their agreements with the governments. We hope this blog post serves to solicit a serious response from the companies about their operations and responsibility to respect human rights. Below, we share what has happened since we published our report, and the questions we want to see answered.
Today, President Biden and Vice President Harris will announce that the administration is accepting voluntary commitments from broadband providers to offer $30 a month internet service to qualifying low-income consumers as part of the existing Federal Communications Commission’s Affordable Connectivity Program.
These voluntary commitments form a strange juxtaposition to the aggressive delay efforts orchestrated by the very same broadband providers, wireless carriers, and broadcasters the FCC regulates to stall the confirmation of Gigi Sohn, a strong consumer champion, to the agency. These delay tactics hamstring the agency’s work to provide oversight and enforceable consumer protections for affordable broadband for all Americans. Public Knowledge urges the Biden administration to support its nominee by securing Ms. Sohn’s Senate confirmation and clarifying its commitment to the long-term protection of consumers in the broadband market.
The written decision confirms that this patent EP 3 294 969 is not limited to the specific Unicoat technology, but also covers other waterproof coatings that protect the edges of HDF-based floors from water damage.
