Flatpak normally does a good job of keeping apps up to date by querying your configured remotes for new versions of installed apps. However, if Flatpak runs into trouble during an update, you may receive the Error updating application message in your terminal. This could occur for a variety of reasons, but usually just means that Flatpak can’t access the remote repository to install a needed update.
You might receive the Dependency not found error in Flatpak whenever an application that you are trying to run or install has a dependency that can’t be currently found on your Linux system. Ordinarily, Flatpak will automatically download all necessary dependencies when it installs an application, but this does not always work perfectly in practice. The fix for this error usually involves identifying the missing dependency, and then installing it.
Flatpak provides developers and administrators with a lot of flexibility in how they decide to distribute applications. Flatpak can query online repositories (or “remotes”) for software to download and for new updates to already installed applications. Developers can choose to host their own repo and share it with users that wish to download their software, or submit their work to a well known online repo like FlatHub.
As an application developer, you may be interested in packaging and distributing your work through Flatpak. Lots of developers choose to use Flatpak because it allows them to deploy their application across a variety of different Linux system, without needing to worry about individual dependencies and differences between distributions. There are also many public software repositories, like FlatHub, where you can upload your work and not need to worry about hosting it yourself.
The Error installing application response in Flatpak is a generic error message that may occur whenever Flatpak runs into some trouble with installing an application. The most common cause for this type of error is something simple like specifying an application that does not exist, or is not available in any of your configured remote repositories. But this error could also be indicative of more serious problems with Flatpak.
Flatpak is a third party software deployment and package manager application that can be installed on OpenSUSE Linux or any other major Linux distro. It allows applications to be packaged in a self contained format, which can then be installed and run on any Linux system, without needing to worry about which distribution you are running. One of the biggest benefits of Flatpak is that you can install programs which are not ordinarily available in the default OpenSUSE software repository.
In this tutorial, you will learn how to configure OpenLiteSpeed as a reverse proxy server. A system that sits between a client and a web server (or servers) can be configured as a reverse proxy. The proxy service acts as a frontend and works by handling all incoming client requests and distributing them to the backend web, database, and/or other server(s). The advantages of a reverse proxy become most apparent under high traffic conditions or situations where multiple backend servers are deployed and need some form of load balancing.
Since Ubuntu does not have a native way to open PDF documents by default, users will need to install Adobe Acrobat Reader for Linux, or some other program capable of opening the documents. The objective of this tutorial is to install Adobe Acrobat Reader on Ubuntu 20.04 Focal Fossa Linux.
Virtualization is a helpful technology that has exploded in popularity and accessibility in the last decade. There are many great reasons to use virtual machines, such as having a test environment separate from your host operating system. It also allows you to run multiple operating systems or Linux distros simultaneously – all inside of their own sandboxed environment, with optional network interconnectivity among your machines.
Users have a lot of choices when it comes to virtualization on a Linux system. There are many use cases for virtualization, whether you want to have a test system that is isolated from your host system, test out a different Linux distribution, or even run a completely different operating system. Whatever the case may be, you will need to have a hypervisor. A hypervisor is what manages and allows you to interact with your virtual machines.
VNC is a system that allows you to remotely control another computer. It allows you to relay your mouse and keyboard inputs as if you were physically sitting in front of the system, when in fact you could be on the other side of the world. It works well for sharing your desktop screen with another user, whether you want to grant them the ability to control your computer or just be able to see what you are doing on it (with mouse and keyboard input blocked).
If you are looking to burn an ISO image to physical media such as a CD or DVD, instead of a conventional method using a GUI application, there are also many ways on how to burn an ISO image from the command line. One way is to use the wodim command. In this tutorial, we will cover the step by step instructions to burn an ISO image to disc using the wodim tool on a Linux system.