An application server is computer software which provides the business logic for an application program. It offers services such as management of large distributed systems, data services, load balancing, transaction support, and network security. The application server is one part of a three-tier application, consisting of a graphical interface server, an application (business logic) server, and a database / transaction server.
There are good reasons to deploy an application server in a corporate environment. At a high level, an application server enables updates and upgrades to applications to be distributed to all users. System administrators also benefit from the fact that changes to application configuration can take place centrally, which greatly simplifies technical support and ultimately the end user experience. Application servers also simplify user management, avoiding the need to set up and maintain user-management systems for applications. This type of software also enhances scalability and resource usage, and exposes business components via different deployment wrappers.
On this episode of This Week in Linux: Linux From Scratch 11.1, openSUSE Leap 15.4 Beta, Linux Mint Debian Edition 5 Beta, FSF’s New Executive Director: Zoë Kooyman, Armbian 22.02, Hyperbola 0.4, Element Call: Native Matrix VoIP, scrcpy 1.23, Firewalld 1.1, Steam Deck Effect: Apex Legends & Destiny 2, Steam Deck To Ramp Up Production, Humble Bundle. All that and much more on Your Weekly Source for Linux GNews!
We have privacy frontends for plenty of services like Twitter, Instagram and ever YouTube but now we finally have one for Tiktok as well, this is Proxitok
The popular Kodi media center has the first update in 2022 by releasing v19.4. Here’s how to install it in Ubuntu.
The release fixed many issues in the Kodi 19 “Matrix”, including Chinese keyboard character display issue, seekbar wouldn’t disappear when pause via a remote app, EDL mute now working, flickering with interlaced H.264 SD on AMD GPUs. For Linux, it now automatically plays DVDs.
And for Xbox users, it may now passthrough audio via WASAPI, and install Python add-ons without permission issue. See release note for more about Kodi 19.4.
In this tutorial, we will show you how to install LibreWolf Browser on Ubuntu 20.04 LTS. For those of you who didn’t know, LibreWolf is an independent “fork” of Firefox, with the primary goals of privacy, security, and user freedom. LibreWolf is designed to increase protection against tracking and fingerprinting techniques, while also including a few security improvements. This is achieved through our privacy and security-oriented settings and patches. LibreWolf also aims to remove all the telemetry, data collection, and annoyances, as well as disabling anti-freedom features like DRM.
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 LibreWolf Browser on Ubuntu 20.04 (Focal Fossa). You can follow the same instructions for Ubuntu 18.04, 16.04, and any other Debian-based distribution like Linux Mint.
Yesterday I received an email from one of our readers and he asked me to fix his issue where he was not able to open PDF from the storage when the user clicked on the button. And his application was running flawlessly on an older version of Android. After Android 11, his application was not working as per his plan.
Although it’s possible to deploy Docker containers without root privileges, that doesn’t necessarily mean it’s rootless throughout. That’s is because there are other components within the stack (such as runc, containerd, and dockerd) that do require root privileges to run. That can equate to a security issue by way of heightened privilege attacks.
Sure, you can add your user to the docker group and run the docker deploy command without the help of sudo, but that really doesn’t solve the problem. There are other ways to run docker that seem like a good idea but, in the end, they’re just as dangerous as running docker with sudo privileges.
So, what do you do? You can always go rootless.
It is important to understand how the command-line processing occurs. The procedure of examining the command issued is not as straight-forward as you might think.
Going over a command to see how processing is achieved can show you how the command can fail. It can help you determine why it failed and how to fix it, so it works.
Developers need tools to help them create applications in the best possible way. That is why there are different frameworks. Although we have recently discussed CakePHP, today we will bring up a very peculiar one because it is focused on mobile. In this post, you will learn how to install Ionic framework in Ubuntu 20.04.
LXQt is a free desktop environment known for being lightweight, fast, and energy-efficient, which can replace the standard default GNOME Desktop on your Ubuntu system, which can be desired for users with low-powered computers and laptops, and netbooks.
LXQt has had a colorful history of merging and then splitting with the LXDE project in 2013 and 2018. However, both projects are of a high standard in sharing similar approaches regarding being more efficient than the major players such as GNOME and KDE.
In the following tutorial, you will learn how to install LXQt on Ubuntu 22.04 LTS Jammy Jellyfish.
Xfce is a lightweight free, open-source desktop environment for UNIX-like operating systems. It is designed to be fast and light on system resources while more visually appealing than the default desktop environments that ship with most operating systems. Xfce is very popular with older systems with hardware as a key feature in its design is to conserve both memory and CPU cycles.
In the following tutorial, you will learn how to install Xfce on Ubuntu 22.04 LTS Jammy Jellyfish using the command line terminal for users that seek an alternative desktop environment to run that is lightweight, clean, and simple.
I am not a Windows user, but the one feature I truly appreciate and probably take with me across other platform is a Windows-like start menu. I have enabled Windows-style start menu on both Ubuntu and Linux Mint installations. The start menu is probably the most convenient way to search and find apps on a Computer.
Chrome OS had another take on the App launcher. Before Chrome OS 94, the app launcher user interface occupies half the screen when launched with the Everything button and full screen with you click on the caret icon to reveal more apps. However, now you can enable the new experimental Windows-style App launcher which only covers half the screen vertically on the left.
In this tutorial, we will show you how to install Geany on Ubuntu 20.04 LTS. For those of you who didn’t know, Geany is a powerful, stable, and lightweight programmer’s text editor that provides tons of useful features without bogging down your workflow. It’s a cross-platform application available on Linux, Microsoft Windows, BSD, Solaris, and macOS. It should run on every platform, which is supported by the GTK libraries.
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 Geany IDE text editor on Ubuntu 20.04 (Focal Fossa). You can follow the same instructions for Ubuntu 18.04, 16.04, and any other Debian-based distribution like Linux Mint.
In this tutorial, we will show you how to install Spyder on Ubuntu 20.04 LTS. For those of you who didn’t know, Spyder is a free and open-source scientific integrated development environment(IDE) written in Python. It features a unique combination of the advanced editing, analysis, debugging, and profiling functionality of a comprehensive development tool with the data exploration, interactive execution, deep inspection, and beautiful visualization capabilities of a scientific package.
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 Spyder IDE on Ubuntu 20.04 (Focal Fossa). You can follow the same instructions for Ubuntu 18.04, 16.04, and any other Debian-based distribution like Linux Mint.
There are a lot of commercial VPN providers available, but in many cases, setting up your own VPN is the best option.
When you use a third-party VPN, your data is routed through their servers, meaning that we have no knowledge of what happens to our data on the back end. If you want to maintain your privacy, you should consider setting up your own VPN server using WireGuard.
But why should you use WireGuard to set up a VPN? What actually is WireGuard? And how can you use it to create your own secure network?
Apache, also known as Apache HTTP server, has been one of the most widely used web server applications globally for the past few decades. It is a free and open-source web application software maintained by the Apache Software Foundation. Apache provides some powerful features with dynamically loadable modules, easy integration with other software, and handling of static files, among other popular features.
In the following tutorial, you will learn how to install Apache Web Server on Ubuntu 22.04 LTS Jammy Jellyfish using the command line terminal for desktop or server and basic configuration along with creating a TLS/SSL certificate with Let’s Encrypt.
It is a matter of regret that most people have a negative idea about Linux gaming. Indeed, you cannot enjoy games like Witchers, God of War, Kingdom Come Deliverance, etc., on Linux as you do on your Xbox or Playstation. But there are many games available on Linux to compete with those games. Some of the best multiplayer games for Linux are like that.
If you have never tried multiplayer games on Linux and wish to try some, please stick up to this article till the end. Here, we are sharing our experience of playing the best multiplayer games. Hopefully, here, you will get introduced to something that will change your thought on Linux gaming.
A new xfce4-terminal development release is here, and this time it is special. This version serves also as the release candidate for xfce4-terminal 1.0.0. If you want to help keep xfce4-terminal bug-free, this is the time to test and report any bugs you find!
I tested the Leap 15.4 Beta GNOME Desktop today on a Lenovo ThinkPad X250. The installation went through without any hiccup and I documented every step of the installation in a Twitter thread.
One thing that I noticed was new in the installer is the icon to change the color theme during installation. This was not present when I tested the Leap 15.4 Alpha distribution.
On the top-right corner of the installer there is a moon icon which can be clicked to select a different theme for the installer. Five themes are available which contain three dark and two light variants.
After openSUSE Leap 15.3 arrived last year, the openSUSE team is now preparing for the next minor version 15.4, which will release in June 2022.
Along the same lines, the beta version of openSUSE Leap 15.4 has been released for the general public to download and test. Leap 15.4 Beta is based on the Jump concept that combines openSUSE Backports with binaries from SUSE Linux Enterprise.
Even though it is technically a minor release, there are some significant changes worth noting along with some updates and improvements.
I wrote about a patched version of Mutter that delivers one of the Linux desktop’s most-desired effects: translucent app windows with frosted blur effect, similar to the sort found on macOS and Windows 11.
That method uses a project called Mutter Rounded, which provides a command line script that recompiles Mutter (a core system component) to ‘patch’ in a set of third-party code to add the blur support natively.
While the process isn’t hard to get up and running —I did it ðŸË⦗ it is a lot more “involved” than some are comfortable with.
Thankfully there is an easier alternative.
Welcome again! Today we will have to compare Ubuntu vs OpenSUSE. Eventually, all system administrators and DevOps engineers always looking for a stable Linux distro that can justify their specific requirements. When choosing an operating systems things vary from situation to situation. Here we will consider different aspects while having a look, whether OpenSUSE is good for us one will do better in some specific cases. For example, let’s consider an example of sharing printer resources, which might be working smoothly with OpenSUSE but may face issues for driver support with another. But, there are possibilities that remote access will work better with one and may give hiccups while working with OpenSUSE.
I would like to add here that the things I will be discussing here, are purely based upon my personal work experience, things may be different for the audience while working with both of the platforms.
I am very proud to announce the release of series 4.0 from the GNU Health Hospital Management Information System (HMIS) component!
Thanks to our community, GNU Health is now a leading Hospital Management Information System, with implementations in many countries around the world. The 4.0 series improves the navigation, introduces many more language teams, new packages and much better integration of evaluation, laboratory and Dx Imaging services.
Welcome to the February 2022 report from the Reproducible Builds project. In these reports, we try to round-up the important things we and others have been up to over the past month. As ever, if you are interested in contributing to the project, please visit our Contribute page on our website.
When we move from model IDs to slugs, we have to pay attention to controller actions’ names collision.
A while back, I wrote about the simplest method to implement slugs in Rails. While the implementation is easy, it’s not everything we have to pay attention to. Once we move from IDs to slugs, we need to make sure our users don’t choose slugs that would break the application.
This month I accepted 484 and rejected 73 packages. The overall number of packages that got accepted was 495.
The overall number of rejected packages was 76, which is about 15% of the uploads to NEW. While most of the maintainers do a great job when creating their debian/copyright, others are a bit lax. Unfortunately those people seem to be more enthusiastic when fighting for changes in NEW processing or even removing NEW.
One argument in discussions about NEW is that the copyright verification of packages can be done by the community after accepting the packages in the archive. Last month I did not get any hint that such checks have been done by anybody. As the past already showed several times, this community based checks simply do not exist.
So in the end poorly maintained copyright information will rot in the archive and I am not sure that this really corresponds with the Debian Social Contract.
Last year, impressed with the apparent speed of an M1 Mac Mini I bought to try out, I explored its perl performance and wrote about it in a blog post. I used mainly my own benchmarks which were mostly representative of workloads I was interested in. Recently, I did an evaluation of our Google Cloud setup at work and, after some tests, I noticed that instance types affected performance significantly and sometimes in a way quite different from what you'd expect based on their price. I packaged my benchmarks in a single suite and over the holidays I run them against various GCP types to see where the best performance and/or value is. After that, I got curious and expanded to include more cloud providers and decided to try and make as best a comparison as I could and write it up, both for my own future reference, and for anyone looking for the best performance or value for various workloads. As a bonus, I threw in Geekbench 5 for a non-perl perspective and the laptops I had at home as a comparison basis. Note that this became quite a long comparison as I found out various things, became curious and had to do more testing etc.
“In the United States, demographers predict that as many as half of today’s 5-year-olds can expect to live to the age of 100,” said The New Map of Life, a recent report from the Stanford Center on Longevity. The cross-disciplinary Stanford Center was founded in 2007 to conduct research on the key issues associated with increased longevity, - from cognitive health to physical well-being and financial security, - with the aim to make long lives healthy and rewarding.
While the 100-year life may be here, we’re not ready. “By the middle of this century, this once unattainable milestone may become the norm for newborns, continuing a remarkable trend that saw human life expectancies double between 1900 and 2000, and still rising in this century, despite the grievous toll of the Covid-19 pandemic,” notes the report. “Longevity is one of the greatest achievements in human history, brought about by reductions in infant mortality, advances in sanitation and medicine, public education, and rising standards of living. Yet the change came about so quickly that the social institutions, economic policies, and social norms that evolved when people lived for half as long are no longer up to the task.”
According to the Stanford Center, there’s a clear distinction between aging and longevity. Aging is the biological process of getting older - the accumulation of changes in a human being over time. Longevity is “the measure of long life,” - the ways to enhance the quality of a long life “so that people experience a sense of belonging, purpose, and worth at all ages and stages.”
