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Securing you Linux Computer (Raspberry Pi)

This was inspired by the concise works of jeff's Skinner Box

Primary Article to begin with:

HowTo: Set-Up the Raspberry Pi as a Headless Device

Lets make sure that we have all the sheilds up!

Protect your Network

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#!/usr/bin/python
#######
# This program would generate Squence pulse train on GPIO 7 Pin 26 of P1
#######
import RPi.GPIO as GPIO
from time import sleep
import sys
import signal

def signal_handler(signal, frame):

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Details

This command would alter the default committer name and email address for each of the commits.

This command uses the git filter-branch command.

$ git filter-branch --env-filter '
WRONG_EMAIL="wrong@example.com"
NEW_NAME="New Name Value"

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Manjaro Linux : Tips and Tricks

We have been using [Manjaro linux][2] for past year and have been happy with its perfomance. Though we don't use te [AUR][1] (Arch User Repository, since many are not supported into Manjaro.

The best part is even with bad / dumb users like myself, IT-DOES-NOT-BREAK. So, we very much recommend [Manjaro][2].

It seriously worked much better than Ubuntu. We might not be able to have all the boat load of software & support like Debian, but we are happy.

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/**
 * Arduino Pro Mini Low power Sleep Example
 *
 * @license BSD Open Source License
 * Copyright (c) 2004-2021 Abhijit Bose < salearj [at] hotmail [dot] com >
 * If you require a license, see
 *    http://www.opensource.org/licenses/bsd-license.php
 *
 * @note
 * This example show how to properly enter sleep mode and wake up

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Raspberry Pi InfluxDB: The solution for IoT Data storage

Raspberry Pi is costeffect linux computer very commonly used for IoT home automation projects.

Here are the 3 problems with conventional databases for IoT data store applications:

• Too much or complex configuration
• Unable to expire data / set retentional policies
• Not tailor made of Time Series Data

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#!/usr/bin/python
#######
# This program would generate PWM on GPIO 7 Pin 26 of P1
# with 50% Dutycyle at 1kHz
#######
import RPi.GPIO as GPIO
from time import sleep

GPIO.setmode(GPIO.BCM)
GPIO.setup(7,GPIO.OUT)

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// Copyright 2021 Abhijit Bose. All rights reserved.
// Use of this source code is governed by a Apache 2.0 license

package main

import (
	"bytes"
	"crypto/rand"
	"crypto/sha256"
	"encoding/hex"

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// Copyright 2021 Abhijit Bose. All rights reserved.
// Use of this source code is governed by a Apache 2.0 license

package main

import (
	"fmt"
	"encoding/hex"
	"golang.org/x/crypto/bcrypt"
)

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// Copyright 2021 Abhijit Bose. All rights reserved.
// Use of this source code is governed by a Apache 2.0 license

package main

import (
	"crypto/aes"
	"crypto/cipher"
	"encoding/hex"
	"fmt"