Chris Blackburn midwire

https://askubuntu.com/questions/1167691/passwordless-login-with-yubikey-5-nfc

Here is my approach:

To enable a passwordless sudo with the yubikey do the following:

sudo apt-get install libpam-u2f
# Open terminal
# Insert yubikey

How to enable passwordless login

(https://askubuntu.com/questions/1167691/passwordless-login-with-yubikey-5-nfc)

Although you should be careful, the process is easy and straightforward. To make it even easier, I've written this so you can simply cut and paste the following commands into a terminal:

sudo apt install libpam-u2f

pamu2fcfg | sudo tee /etc/u2f_mappings

	# Some versions of Rails have a bug where you cannot even examine the `params` object in IRB or Pry
	# If you get a message like: "unable to convert unpermitted parameters to hash" when you try to look at it
	# You can do this:
	params.permit!

	# List the services
	synoservice --list

	# Stop a service
	synoservicectl --stop pkgctl-EmbyServer

	# Start a service
	synoservicectl --start pkgctl-EmbyServer

	# For a couple files..
	tar -czf archive.tar.gz file1 file2

	# For an entire directory - recursively
	tar -cfz archive.tar.gz directory_path

	# Create an archive and send to another host over SSH - extract it there
	tar cvf - project \| ssh user@ip_addr "tar xv -C /var/www"

	# Extract a tar.gz file

	-- If necessary:
	-- sudo su - postgres
	-- psql

	ALTER ROLE username WITH PASSWORD 'password';

	-- Before starting postgres server
	-- export ENVNAME='whatever'
	-- pg_ctl -D /usr/local/var/postgres [etc...] start

	DROP TABLE IF EXISTS env;
	DROP TABLE IF EXISTS env_tmp;
	CREATE TEMP TABLE env_tmp(e text);
	CREATE TEMP TABLE env(k text, v text);

	COPY env_tmp ( e ) FROM PROGRAM 'env';


	Handy one-liners for SED

	HANDY ONE-LINERS FOR SED (Unix stream editor) Mar. 23, 2001
	compiled by Eric Pement <[email protected]> version 5.1
	Latest version of this file is usually at:
	http://www.student.northpark.edu/pemente/sed/sed1line.txt
	http://www.cornerstonemag.com/sed/sed1line.txt
	This file is also available in Portuguese at:
	http://www.lrv.ufsc.br/wmaker/sed_ptBR.html

	# Launch screen with a title
	screen -t <title>
	# start long running command
	<ctrl>-a d # detach screen

	# Launch named screen session
	screen -S <title>


	# live a happy life.

	Kernel.silence_warnings do
	# do stuff here
	end