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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:

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Generate ssl certificates with Subject Alt Names on OSX

We can generate a common CA certificate, and then each project can use this CA certificate to sign and issue a project certificate. Hence the CA certificate is needed to install as a trusted cert, and once the project is signed and issue using this CA cert, the new project certificate will be trusted via chain of trust policy.

Generate a CA key

openssl genrsa -out ca.key 4096

Generate a CA public key, ensure expiry date is exceeding the individual cert

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package com.softwaremill.akka

import java.time._

import akka.actor.ActorSystem
import akka.stream.ActorMaterializer
import akka.stream.scaladsl.Source

import scala.collection.mutable
import scala.concurrent.Await

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Open PostgreSQL and Create a table student in database student.

CREATE EXTENSION hstore;

CREATE TABLE student (
    id     int,
    name   varchar(254) NOT NULL,
    hobbies  text[],
    marks hstore
);

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#!/bin/sh
AMBARI_USER=admin
AMBARI_PASSWORD=
CLUSTER_NAME=sandbox
AMBARI_API=http://127.0.0.1:8080/api/v1/clusters/$CLUSTER_NAME
BLUEPRINT_API=http://127.0.0.1:8080/api/v1/blueprints

hostname="hostname.example.com"
service="aservice"