Niraj Fonseka Niraj-Fonseka

Secure data transfer using GPG keys

Sometimes you need a secure way to pass a file from one place to another, ensuring that only the intended recipient can read its contents. We can achieve this simply using GPG keys.

The flow is:

Recipient generates a GPG key
Recipient exports a public key
Recipient sends public key to sender
Sender receives public key from recipient

apt install bbswitch

/etc/modprobe.d/bbswitch.conf
    options bbswitch load_state=0 unload_state=1

To run bbswitch without bumblebeed on system startup, do not forget to add bbswitch to /etc/modules-load.d.

nano /etc/modules-load.d
    bbswitch

Docker compose as a systemd unit

Create file /etc/systemd/system/[email protected]. SystemD calling binaries using an absolute path. In my case is prefixed by /usr/local/bin, you should use paths specific for your environment.

[Unit]
Description=%i service with docker compose
PartOf=docker.service
After=docker.service

Moved to git repository: https://github.com/denji/golang-tls

Generate private key (.key)

# Key considerations for algorithm "RSA" ≥ 2048-bit
openssl genrsa -out server.key 2048

# Key considerations for algorithm "ECDSA" ≥ secp384r1
# List ECDSA the supported curves (openssl ecparam -list_curves)

	# This script requires to have some basic Python skills
	# - Install python dependencies (thanks to TitwitMuffbiscuit on reddit) :
	# pip install nltk beautifulsoup4 googlesearch-python trafilatura wolframalpha
	#
	# If you get this error "Resource punkt not found", it's because Punkt sentence tokenizer for Natural Language Toolkit is missing.
	# Edit the file and add this before
	# from nltk.tokenize import word_tokenize ,
	# it will download the necessary english.pickle:
	# import nltk
	# nltk.download('punkt')

	import network
	import socket
	import time
	import struct

	from machine import Pin

	NTP_DELTA = 2208988800
	host = "pool.ntp.org"

	package main

	import (
	"fmt"
	"log"
	"os"
	"time"

	"github.com/tarm/serial"
	)

	#!/bin/bash

	# tunejack.sh uses the TuneIn public API (at opml.radiotime.com) to search for
	# a radio station, print out its details and try to play it somehow.

	if [ "$#" -eq 0 ]; then
	echo "$0: search for a radio station using the TuneIn API"
	echo "Usage: $0 PATTERN"
	exit 1
	fi

	This is free and unencumbered software released into the public domain.

	Anyone is free to copy, modify, publish, use, compile, sell, or
	distribute this software, either in source code form or as a compiled
	binary, for any purpose, commercial or non-commercial, and by any
	means.

	In jurisdictions that recognize copyright laws, the author or authors
	of this software dedicate any and all copyright interest in the
	software to the public domain. We make this dedication for the benefit

	package main

	import (
	"log"
	"net/http"
	)

	func redirect(w http.ResponseWriter, r *http.Request) {

	http.Redirect(w, r, "http://www.google.com", 301)