andyrbell

# use ImageMagick convert
# the order is important. the density argument applies to input.pdf and resize and rotate to output.pdf
convert -density 90 input.pdf -rotate 0.5 -attenuate 0.2 +noise Multiplicative -colorspace Gray output.pdf

gboudreau

Exporting your 2FA tokens from Authy to transfer them into another 2FA application

IMPORTANT - Update regarding deprecation of Authy desktop apps

Past August 2024, Authy stopped supported the desktop version of their apps:
See Authy is shutting down its desktop app | The 2FA app Authy will only be available on Android and iOS starting in August for details.

And indeed, after a while, Authy changed something in their backend which now prevents the old desktop app from logging in. If you are already logged in, then you are in luck, and you can follow the instructions below to export your tokens.

If you are not logged in anymore, but can find a backup of the necessary files, then restore those files, and re-install Authy 2.2.3 following the instructions below, and it should work as expected.

drkarl

Linux Backup Solutions

I've been looking for the best Linux backup system, and also reading lots of HN comments.

Instead of putting pros and cons of every backup system I'll just list some deal-breakers which would disqualify them.

Also I would like that you, the HN community, would add more deal breakers for these or other backup systems if you know some more and at the same time, if you have data to disprove some of the deal-breakers listed here (benchmarks, info about something being true for older releases but is fixed on newer releases), please share it so that I can edit this list accordingly.

Amanda (comments by sammcj)

• It has a lot of management overhead and that's a problem if you don't have time for a full time backup administrator.

hrj

LogShark is a simple utility to collect logs from an Android device using a PC.

I created this to help Android developers collect information from their app's users. This information can be very useful for debugging purposes.

From Android version 4.1 (Jelly Bean) onwards, it has become difficult to collect this information through the device itself. Hence the need for an app that runs on the PC.

Note that the collection of information is entirely voluntary. Moreover, the user can (and should) review the information before sending it to developers or other people.

Pre-requisites

DamienCassou

#! /usr/bin/env bash

# Author: Damien Cassou
#
# This is the script I use to build Emacs packages for Ubuntu. These
# packages are uploaded to
# https://launchpad.net/~cassou/+archive/emacs/. Each package is
# either build from a Debian package or from
# http://emacs.naquadah.org/.