mhtsai1010

Ref: https://bbs.archlinux.org/viewtopic.php?id=65508

1/ Method 1
# First, create a new Linux group which has permission to use promiscuous mode, and add yourself to the group.
$ groupadd promiscuous
$ usermod -a -G promiscuous <your_user_id>

# Update the group ownership and access permission of /dev/vmnet*
$ chgrp promiscuous /dev/vmnet*
$ chmod g+rw /dev/vmnet*

magnetikonline

VirtualBox create host-only interface and attach

A host-only network interface is created virtually in software which appears to the host system.

This interface can be attached to one or more VMs, allowing connectivity between those VMs and communication between the host system and VMs.

• Create & attach interface
• Configure Ubuntu guests
  • Ubuntu 18.04+
  • Ubuntu pre 18.04

curioswati

To run a flatpak app from dmenu, you can create a symlink for the app in /usr/bin. You can find the flatpak apps binary link in /var/lib/flatpak/exports/bin/ on ubuntu. E.g. to run Rocket Chat (installed from flatpak via software center), you can do something like this:

sudo ln -s /var/lib/flatpak/exports/bin/chat.rocket.RocketChat /usr/bin/rocket-chat

This way you will be able to find it in the dmenu.

Resources:

• i3wm dmenu add .desktop file

Cardoso1994

################################
#### Gruvbox Material Light ####
################################
set $bg       #fbf1c7
set $fg       #654735
set $red      #c14a4a
set $orange   #c35e0a
set $green    #6c782e
set $blue     #45707a
set $purple   #945e80

eloylp

Fedora35 hibernation

This guide helps to configure the hibernation on a default Fedora35 (also worked fine in previous Fedora34) installation by using a swap file. The Fedora35 installation comes with btrfs as default filesystem. Also, it comes with a zram swap device:

$ swapon
NAME       TYPE      SIZE USED PRIO
/dev/zram0 partition   8G   0B  100

the-spyke

Enable PipeWire on Ubuntu 22.04

This guide is only for original Ubuntu out-of-the-box packages. If you have added a custom PPA like pipewire-debian, you might get into conflicts.

Ubuntu 22.04 has PipeWire partially installed and enabled as it's used by browsers (WebRTC) for recoding the screeen under Wayland. We can enable remaining parts and use PipeWire for audio and Bluetooth instead of PulseAudio.

Starting from WirePlumber version 0.4.8 automatic Bluetooth profile switching (e.g. switching from A2DP to HSP/HFP when an application needs microphone access) is supported. Jammy (22.04) repos provide exactly version 0.4.8. So, we're good.

Based on Debian Wiki, but simplified for Ubuntu 22.04.