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Enable Wake-on-LAN to Wake up (or Boot) Ubuntu 24.04 Remotely

Last updated: August 19, 2024 — Leave a comment

This is a step by step guide shows how to enable Wake-on-LAN feature in Ubuntu, so you can wake it up from suspend, hibernation, or shutdown state remotely using another computer or mobile phone.

Wake on LAN, WoL in short, is a protocol allows computer to be turned on or waked up from sleep using network message. It’s based on AMD’s Magic Packet Technology, and also known as wake on WAN, remote wake-up, power on by LAN, and resume by LAN.

WoL uses wired network on target computer for the communication. Though, there’s also Wake on Wireless LAN (WoWLAN) allowing to wake up wirelessly.

In Howtos network, power

How to Disable IPv6 in Ubuntu 24.04

Last updated: August 18, 2024 — Leave a comment

This is a step by step beginner’s guide shows how to disable IPv6 in Ubuntu 24.04 LTS with or without system restart.

IPv6 is the future of internet protocols. But for some reasons, such as compatibility with certain networks, testing purpose, or security concerns, or just because don’t use that thing, users may want to disable IPv6 in their machines.

Disabling IPv6 is generally safe. There may be small performance loss on some websites and services that are optimized for IPv6, though you can re-enable it at any time as you want.

In Howtos network

PyCharm 2024.2 Released! Wayland Rendering Support & New AI Features

Last updated: August 14, 2024 — Leave a comment

JetBrains announced the new 2024.2 release of its PyCharm IDE just a few days after the release of IntelliJ IDEA.

The new release introduces significant improvements to the AI Assistant. It enhances cloud-based code completion with faster and more accurate suggestions, and features better UX including syntax highlighting for suggested code, and option to accept suggestions incrementally.

The AI now uses the latest GTP-4o model, supports chat references and semantic search. It features AI integration in the Terminal tool window, and AI-assisted VCS conflict resolution.

In News PyCharm

Create Separate /home Partition (e.g., on USB) for Ubuntu 24.04

Last updated: August 12, 2024 — 2 Comments

This tutorial shows how to separate /home from an existing Ubuntu file-system, to individual disk partition or even USB stick, while preserving all personal data.

Linux can have separate /home partition, which is useful for re-installing system, or even trying different Linux distributions without losing most of custom settings, configurations, downloads, etc.

While installing Linux, there’s usually an option to create separate /home. If you didn’t do that, then here’s step by step guide shows you how to do the trick afterward.

In Howtos

IntelliJ IDEA 2024.2 Released! New Default UI, Wayland Rendering Support

Last updated: August 10, 2024 — Leave a comment

JetBrains announced the new 2024.2 release of its IntelliJ IDEA integrated development environment (IDE).

The release uses new clean and modern UI as default, while classic one is available as plugin. For Linux, it auto-places window controls to left or right depends on your desktop settings. And, it switched to JetBrains Runtime 21 with enhanced security, performance, as well as Wayland rendering support.

In News IntelliJ IDEA, programming

Linux Kernel 6.10 Available to Install via Mainline Kernel PPA

Last updated: August 8, 2024 — Leave a comment

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.

In Howtos kernel

Install VirtualBox Guest Additions for Ubuntu 24.04 VM

Last updated: September 12, 2024 — Leave a comment

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

In Howtos Virtualbox

Scrcpy 2.6 Added Mirroring Android Audio Support

Last updated: August 7, 2024 — Leave a comment

Scrcpy, the free open-source Android screen mirroring app, released version 2.6 (then 2.6.1 with quick fix) a few days ago.

Scrcpy is an app works on Linux, Windows, and macOS, allowing users to remote access and control their Android screen from PC/laptop, either wirelessly through TCP/IP in same network or wired with USB cable.

It uses Android Debug Bridge (adb) to communicate with Android device. Nothing needs to be installed on Android side, but it needs to enable developer mode for USB debugging option which is required by adb.

In News Android, Android Remote Control

How to Encrypt An Existing Ubuntu 24.04 System

Last updated: September 6, 2024 — 5 Comments

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

In Howtos Disk Encryption, security

How to Install NVIDIA 560 / 555 Series Driver in Ubuntu via PPA

Last updated: November 10, 2024 — 2 Comments

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.

In Howtos nvidia

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