News, Tutorials, Howtos for Ubuntu Linux
For Ubuntu 24.04 and its based systems, the Mainline Kernel PPA finally fixed building recent Kernel packages since v6.10.3.
The Mainline Kernel PPA is Ubuntu maintained package archive that keeps building the upstream Linux Kernel releases for testing purpose.
The recent builds since v6.10-rc3 were broken due to unknown reason. If you’re waiting for the fix for it, the latest build for Kernel 6.10.3 is backing for working again.
This tutorial shows how to install the guest additions for Debian, Ubuntu, Linux Mint based systems that are running as Virtualbox virtual machine.
Guest Additions is an external package designed to be installed inside a VirtualBox guest OS. It enables closer integration between the host and guest OSes, including features such as shared folder, custom video drivers, seamless window mode, and more.
Guest Additions is not installed by default after installed your system as virtual machine. It’s however easy to install through the official CD image.
Ubuntu 24.04 Guest OS in VirtualBox
This is a step by step tutorial shows how to encrypt Ubuntu, while preserving its data, after you installed it on your computer.
While installing Ubuntu 24.04, if you didn’t choose to use the entire disk, then there’s no graphical option to enable encryption. You can however manually encrypt the full Ubuntu system afterward.
So, on every boot of the Ubuntu system, it asks to input password to unlock boot entry (if /boot partition is also encrypted), then asks again to unlock disk partition before user being able to login.
it asks password twice to unlock boot entry & then root partition
NVIDIA Linux driver has reached 560 release series. Here’s how to install it or the 555 series in Ubuntu 24.04, Ubuntu 22.04, Ubuntu 20.04, and their based systems.
NVIDIA 560 so far is the latest new feature branch driver for Linux. It added support VRR (Variable Refresh Rate) on notebooks with the open kernel modules, as well as for Wayland on pre-Volta GPUs.
As well, there are multiple concurrent clients support to NvFBC direct capture, PipeWire backend to NvFBC, and EGL_KHR_platform_x11 and EGL_EXT_platform_xcb on Xwayland. See release note for more.
For NVIDIA 555, it uses GSP firmware by default on all GPUs that support it, which acts like a CPU embedded into the GPU that can offload GPU initialization and management tasks.
The 555 driver enabled HDMI 10 bits per component support by default. It also has better Wayland support. It now has less screen tearing, and supports linux-drm-syncobj-v1 protocol for explicit synchronization in EGL. For more about the new driver, see the release page.
This tutorial shows how to install and setup RetroArch to play classic video games, including Arcade, Atari, Commodore, Nintendo, Sony Playstation games, in Ubuntu PC or laptop.
RetroArch is a free open-source cross-platform front-end for emulators, game engines, media players, and other applications. It’s the reference frontend for the libretro API, that offers several uncommon technical features, such as multi-pass shader support, real-time rewinding, and video recording.
This is a beginner’s guide shows you how to enable, disable, and configure firewall in Ubuntu using UFW.
Firewall is a network security system that monitors incoming and outgoing network traffic, and decides whether to allow or block specific traffic based on pre-defined security rules.
Linux Kernel has the Netfilter subsystem, which is implemented as a packet filter and firewall. Iptables (and nftables, the successor of iptables) is the user-level command line tool to configure the firewall by adding/removing netfilter rules.
Iptables (and nftables) is much more flexible but really hard for beginners. UFW (Uncomplicated Firewall), the user-friendly front-end for iptables, is which I’m going to talk about below.
Image by Pete Linforth from Pixabay
Ubuntu 24.04 has a new circular arrow indicator icon in top right system tray, when there are available system updates. By clicking on it allows to quickly launch Software Updater (Update Manager) tool for installing updates.
If you don’t like that indicator icon, here’s how to disable it, as well as stop checking for updates automatically.
Indicator icon reminding there are system updates
This simple tutorial shows how to use your Android or iOS Phone as remote input (e.g, touchpad, send command) for Ubuntu and other Linux Desktop.
KDE community has an popular free open-source software project called KDE Connect. It enables ability to communicate between your computer (Linux, macOS, and Windows) and mobile devices (Android and iOS) in local network.
With it, you can send photos, videos, and files between paired devices, share clipboard, and do remote actions such as:
There are as well features to send SMS from PC, “Ring” your phone to help find it, and browser your files on Mobile Phone. However, the features may NOT work due to either permission issues or requirement of running mobile app in foreground.
Have Ubuntu computer connected with multiple monitors? Here’s how to make the top panel show in all displays!
GNOME, the default desktop in Ubuntu, so far only shows the top-panel in the primary display. There is a multi-monitors-add-on extension, allowing to make it work in all displays. However, it’s no longer in development and supports end at GNOME 3.38.
Thankfully, there’s open-source fork of that extension with GNOME from version 42 to 46 support, meaning for Ubuntu 22.04 and Ubuntu 24.04, Debian 12, Fedora Workstation, RHEL 9 , and other Linux with recent GNOME.
This simple tutorial shows how to easily turn your Ubuntu or Debian into home media server, so that you can listen to the music, watch photos and videos that are stored in Linux PC remotely using your mobile phones and/or smart TVs.
GNOME, the default desktop in Ubuntu and Fedora Workstation, has built-in option to enable this feature. It uses Rygel home media solution as backend.
It automatically transcode media to a format compatible with the client device. And, client machines that supports DLNA/UPnP, such as Sony PlayStation, Microsoft Xbox, smart TV, Android, iOS, can access them through the local network.
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