Yan krokwen

Fedora34 hibernation

This guide helps to configure the hibernation on a default Fedora34 installation by using a swap file. The Fedora34 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

Symmetic encryption

For symmetic encryption, you can use the following:

To encrypt:

openssl aes-256-cbc -salt -a -e -in plaintext.txt -out encrypted.txt

To decrypt:

Setup

Copy 99-u2f_lock_screen.rules to /etc/udev/rules.d.
Copy gnome_lock_all_sessions to /usr/local/bin.
Mark gnome_lock_all_sessions as executable: chmod +x /usr/local/bin/gnome_lock_all_sessions
Reload udev: udevadm control -R

	# ubuntu 16.04 used on all nodes

	# all your nodes must have static ip in local network
	# all your nodes must no have enabled swap partition

	# perform this on all nodes:

	apt update && apt upgrade -y
	apt install -y docker.io
	curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg \| apt-key add -

	#!/bin/bash

	if [ -z "$1" ]; then
	MB=1024
	else
	MB="$1"
	fi

	if [ -z "$2" ]; then
	browser="google-chrome-beta"

	#!/bin/bash

	echo "removeing evaluation key"
	rm ~/.IntelliJIdea15/config/eval/idea15.evaluation.key

	echo "resetting evalsprt in options.xml"
	sed -i '/evlsprt/d' ~/.IntelliJIdea15/config/options/options.xml

	echo "resetting evalsprt in prefs.xml"
	sed -i '/evlsprt/d' ~/.java/.userPrefs/prefs.xml