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@colematt
colematt / Backup-and-Restore-GPG-and-SSH-keys.md
Created November 16, 2020 03:24
[Backup and Restore GPG and SSH keys] #git #gpg #ssh

Backup

  1. Copy both id_rsa and id_rsa.pub from ~/.ssh/ to a USB drive. Identify the private key by executing the following command. 
    gpg --list-secret-keys --keyid-format LONG
  2. It will show something similar to this. 
    sec   4096R/3AA5C34371567BD2 2016-03-10 [expires: 2017-03-10]
@ChriRas
ChriRas / readme.md
Last active January 29, 2026 17:49
Set up default audio device on Ubuntu 20.04 LTS

Problem

I have a notebook connected to a port replicator. I want to use the build-in speakers and microfone and not the external ones. If I boot my notebook in my port replicator Ubuntu changes the devices to external.

Solution

  1. Find your internal speaker
pactl list short sinks
@diffficult
diffficult / bluetoothdoubledipping.md
Last active March 10, 2026 16:49
Bluetooth Pairing one device on Dual Boot of Windows & Linux - Stop having to Pair Devices

Bluetooth Pairing one device on Dual Boot of Windows & Linux - Stop having to Pair Devices

You may have experienced when dual booting that you need to re-pair your bluetooth devices (ie., Headphones, mouse, keyboard, etc) this usually happens because you have already paired the device with another operating system using the same bluetooth adapter when dual booting (either Linux or Windows).

Some devices cannot handle multiple pairings associated with the same MAC address (ie., bluetooth adapter). As per suggested on the ArchWiki you can fix this by re-pairing the device each time, but there's actually another solution to not do so each time you choose to use your device on a different OS.

How can we accomplish this?

Easy, just pair the device on a OS and copy the bluetooth keys generated to the other OS so our device doesn't notice the difference.