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Install Terminator (shell)

sudo add-apt-repository ppa:gnome-terminator
sudo apt-get update
sudo apt-get install terminator

Terminator should be setup as default now. Restart your terminal (shortcut: "Ctrl+Alt+T").

Install ZSH

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1. Clone your fork:

git clone git@github.com:YOUR-USERNAME/YOUR-FORKED-REPO.git

2. Add remote from original repository in your forked repository:

cd into/cloned/fork-repo
git remote add upstream git://github.com/ORIGINAL-DEV-USERNAME/REPO-YOU-FORKED-FROM.git
git fetch upstream

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Github : Signing commits using GPG (Ubuntu/Mac) 🔐

• Do you have an Github account ? If not create one.
• Install required tools
• Latest Git Client
• gpg tools

# Ubuntu
sudo apt-get install gpa seahorse
# Mac

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server {
  listen 80 default_server;
  listen [::]:80 default_server;

  root /your/root/path;

  index index.html;

  server_name you.server.com;

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[
  {
    "value": "001",
    "label": "Banco do Brasil S.A."
  },
  {
    "value": "003",
    "label": "Banco da Amazônia S.A."
  },
  {

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import 'package:bip39/bip39.dart' as bip39;
import "package:hex/hex.dart";
import 'package:web3dart/credentials.dart';
import 'package:bip32/bip32.dart' as bip32;

abstract class OKAddressETH {  
  String generateMnemonic();  
  String getPrivateKey(String mnemonic);  
  Future<EthereumAddress> getPublicAddress(String privateKey);            
}

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Setup HashiCorp Vault on docker

Vault secures, stores, and tightly controls access to tokens, passwords, certificates, API keys, and other secrets in modern computing. Vault is primarily used in production environments to manage secrets. Vault is a complex system that has many different pieces. There is a clear separation of components that are inside or outside of the security barrier. Only the storage backend and the HTTP API are outside, all other components are inside the barrier.

Figure 1: Architecture of Vault and Spring App (Click to enlarge)

The storage backend is untrusted and is used to durably store encrypted data. When the Vault server is started, it must be provided with a storage backend so that data is available across restarts. The HTTP API similarly must be started by the Vault server on start so that clients can interact with it.