fannar fannar

How to work with nssdb and certutil

remove database

rm -r ~/.pki/nssdb

create database directory

Anonymising PDFs

PDF metadata

Metadata in PDF files can be stored in at least two places:

the Info Dictionary, a limited set of key/value pairs
XMP packets, which contain RDF statements expressed as XML

PDF files

Note: You MUST have curl 7.47+ with http/2 support compiled in

PEM

Convert P12 to PEM: openssl pkcs12 -in cert.p12 -out cert.pem -nodes -clcerts

curl -v \
-d '{"aps":{"alert":"<message>","badge":42}}' \
-H "apns-topic: <bundle id>" \

Arch Linux and Systemd: Rbenv, Passenger and Nginx

Rbenv

git clone https://github.com/sstephenson/rbenv.git ~/.rbenv
git clone https://github.com/sstephenson/ruby-build.git ~/.rbenv/plugins/ruby-build

export PATH="$HOME/.rbenv/bin:$PATH"
eval "$(rbenv init -)"

I use Homebrew for package management, so the instructions here work with that. You could probably get p7zip and atool another way if you want.

install p7zip with homebrew: brew install p7zip
install atool with homebrew: brew install atool
extract individual files from .7z archives to current directory: atool -X . -e -E *.7z
delete or move the .7z files: rm *.7z
archive each file into its own ZIP archive using find and atool: find . -d 1 -type f -exec atool -a -F 7z -E -e {} ';'
delete the uncompressed rom files. They should have a common file extension, which you'll need to change depending on the ROM type. For example, I needed to delete a bunch of .gb and .gbc files: rm *.gb; rm *.gbc

Keybase proof

I hereby claim:

I am fannar on github.
I am fannar (https://keybase.io/fannar) on keybase.
I have a public key whose fingerprint is 40BB B9C9 7E42 3FA0 4C58 94F4 04D9 977E 6F8C 26C5

To claim this, I am signing this object:

	#!/bin/bash

	# Script for converting a folder of MXF video files to different to a single MP4 file.
	# Alexander Refsum Jensenius, RITMO, University of Oslo
	# v0.1 2019-11-03

	# Find and move all MXF files to the "root" (where the script is run from)
	find . -name "*.MXF" -exec mv {} . ";"

	# Create list of files to be used for concatenation

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


	For Asymmetric encryption you must first generate your private key and extract the public key.

	# vim: syntax=config

	###########
	# General #
	###########

	priority=high

	input-ipc-server=/tmp/mpvsocket # listen for IPC on this socket
	load-stats-overlay=yes # use local stats.lua

	###########
	# General #
	###########

	vo=libmpv
	cocoa-force-dedicated-gpu=yes
	#load-stats-overlay=no

	# OpenGL settings
	gpu-api=opengl