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KeePassX 2 YubiKey support

KeePassXC password manager 2.5.3 was released today with stability improvements and new feature: browser extension for Chromium-based Edge browser.

KeePassXC 2.5.3 changelog:

  • Fix possible database lockout when removing a YubiKey from a KDBX 3.1 database
  • Fix crash if Auto-Type is performed on a new entry
  • Fix crash when all entries are deleted from a group
  • Improve the reliability of clipboard clearing on Gnome
  • Do not check cmd:// URLs for valid URL syntax anymore
  • Prevent unnecessary merges for databases on network shares
  • Browser: Prevent native messaging proxy from blocking application shutdown
  • Browser: Improve website URL matching

How to Install KeePassXC 2.5.3 in Ubuntu:

For Ubuntu 18.04 and higher, KeePassXC Snap package (runs in sandbox) can be easily installed via Ubuntu Software.

For those prefer native Ubuntu .deb package, open terminal from application menu or press Ctrl+Alt+T on keyboard, and run following commands one by one:

1.) Run command to add the official PPA, which so far supports for Ubuntu 16.04, Ubuntu 18.04, Ubuntu 19.04, and Ubuntu 19.10.

sudo add-apt-repository ppa:phoerious/keepassxc

Type user password (no asterisk feedback due to security reason) when it prompts and hit Enter to continue.

2. Then upgrade KeePassXC from previous release via Software Updater:

or run commands one by one in terminal to install the password manager:

sudo apt update

sudo apt install keepassxc

Uninstall:

To remove the PPA, open Software & Updates and navigate to Other Software tab.

To remove KeePassXC .deb package, run command in terminal:

sudo apt-get remove --autoremove keepassxc

Linux Kernel

The first maintenance release for Oracle Virtualbox 6.1 series was released one day ago.

Virtualbox 6.1.2 added kernel 5.5 support in Linux hosts (guest additions not yet), and improved resize and multi-monitor handling for Linux guests using VMSVGA.

Other changes include:

  • fixed performance issue observed with Windows XP guests on AMD hosts
  • fixed audio input handling when VRDE is enabled
  • fixed use of encrypted disks with snapshots involved
  • improve performance of virtio-scsi
  • and some Windows hosts and guests improvements and fixes.

How to Install Virtualbox 6.1.2 in Ubuntu:

For 64-bit Ubuntu 16.04, Ubuntu 18.04, Ubuntu 19.04, Ubuntu 19.10, and their derivatives, you can either download the official .deb binary from the link below:

Download Virtualbox for Linux

or install VBox from its official apt repository by running following steps:

1. Open terminal (Ctrl+Alt+T), paste below command and run to add the repository:

sudo sh -c 'echo "deb [arch=amd64] https://download.virtualbox.org/virtualbox/debian $(lsb_release -sc) contrib" >> /etc/apt/sources.list.d/virtualbox.list'

For Linux Mint, you HAVE to replace $(lsb_release -sc) in the command with bionic for Mint 19.x, or xenial for Mint 18.x.

2. Then download and install the repository key via command:

wget -q https://www.virtualbox.org/download/oracle_vbox_2016.asc -O- | sudo apt-key add -

3. Refresh system package cache via command:

sudo apt update

4. Finally install Virtualbox 6.1:

sudo apt install virtualbox-6.1

Uninstall:

To remove it, simply run command in terminal:

sudo apt remove --autoremove virtualbox-6.1

And go to Software & Updates -> Other Software to remove apt repositories.

The open-source LaTeX text editor TeXstudio 2.12.20 was released today as a new bug-fix release for the 2.12 series.

Most notably changes in TeXstudio 2.12.20 include fix bug when replacing highlighted search results, and add \text{} to amsmath.cwl.

How to Install TexStudio 2.12.20 in Ubuntu:

The official PPA has made the new release packages for Ubuntu 16.04, Ubuntu 18.04,
Ubuntu 19.10, Ubuntu 20.04, and their derivatives.

1. Open terminal either by pressing Ctrl+Alt+T on keyboard or by searching for ‘terminal’ from software launcher. When it opens, run command:

sudo add-apt-repository ppa:sunderme/texstudio

Type user password (no asterisk feedback) when it asks and hit Enter to add the PPA.

2. If an old version was installed in your system, remove the texstudio-doc, texstudio-l10n (if any) package before upgrading the software:

sudo apt-get remove texstudio-doc texstudio-l10n

3. After adding the PPA, you can either upgrade it via Software Updater:

or run commands in terminal to install or upgrade the software:

sudo apt-get update && sudo apt-get install texstudio

Uninstall:

To remove the LaTeX editor, run command in terminal:

sudo apt-get remove --autoremove texstudio

And go to Software & Updates -> Other Software to remove PPA repositories.

Cawbird is a fork of the Corebird GTK twitter client that continues to work with Twitter on Linux.

Corebird became unsupported after Twitter disabled the streaming API. Cawbird takes up the job to work with the new APIs and includes a few fixes and modifications.

Cawbird 1.0.4 was released today as the latest version including following changes::

  • Reduce bespoke themeing and make the main bar use native colors
  • Import favourited images from Corebird
  • Fixed crash caused by Twitter sending invalid entity positions in tweet
  • Fixed tweet length error with counting prime marks (quotes)
  • Update Italian translation

How to Install Cawbird in Ubuntu:

The community maintained Cawbird Snap package, which runs in sandbox, can be easily installed from Ubuntu Software:

For those prefer native .deb package, go to the developer maintained repository at the link below:

Download Cawbird

Select Ubuntu, then click ‘Grab binary packages directly‘ and download the .deb package for your system.

Finally install the .deb via Gdebi package installer (available in Ubuntu Software) and enjoy!

TLP

TLP, an advanced power management tool for Linux, released version 1.3 beta for testing. Here’s how to install it in Ubuntu 18.04, Ubuntu 19.10, and Ubuntu 20.04.

If you’re just looking for how to save your Ubuntu laptop battery life, simply open terminal by pressing Ctrl+Alt+T on keyboard and install the stable version of TLP by running command:

sudo apt install tlp

This command line tool comes with a default configuration already optimized for battery life, so you may just forget it afterwards.

TLP 1.3 Beta comes with new configuration scheme. System wide user configuration file /etc/default/tlp is replaced by /etc/tlp.conf. And settings are read in the following order:

  1. Intrinsic defaults
  2. /etc/tlp.d/ – Drop-in customizations
  3. /etc/tlp.conf – User configuration

For more about the beta release, see the github releases page.

How to Install TLP 1.3 Beta in Ubuntu:

The software has an official PPA repository for the beta releases. So for, it supports for Ubuntu 18.04, Ubuntu 19.10, and Ubuntu 20.04.

1.) Open terminal either from application launcher or by pressing Ctrl+Alt+T on keyboard. When it opens, run command to add the PPA:

sudo add-apt-repository ppa:linrunner/tlp-beta

Type user password (no asterisk feedback) when it asks and hit Enter to continue.

2.) If you already installed an old version, open Software Updater and upgrade the package.

Or run command in terminal:

sudo apt update && sudo apt install tlp

Uninstall:

You can run command in terminal to purge the PPA which also downgrade TLP to the stable version available in Ubuntu main repository:

sudo apt install ppa-purge && sudo ppa-purge ppa:linrunner/tlp-beta

To completely remove the TLP power management tool, run command:

sudo apt remove tlp tlp-rdw