Mitch Pierias MitchPierias

Deploying a Neo4j Instance on Amazon EC2

Instance Setup

IAM Credentials

Ensure you have an IAM user created with correct EC2 or more access for the individual or machine you are wokring on and add your IAM User credentials into ~/.ssh/credentials

Instance Access credentials

Download .pem file and chmod 400 YOUR_CREDENTIALS.pem.

Prerequisites

OOO in Distributed Applications

For security reasons, it's important to remember the order of which you perform operations within the actions of your distrubuted application.

Checks
Effects
Interactions

Performing operations in this order will prevent the vulnerability seen in the infamous DAO hack (Google it), where an attacker opened a series of withdrawals, and transfered funds before the contract could update it's balance data.

	# the endpoint upon which to listen for incoming connections (eosio::bnet_plugin)
	bnet-endpoint = 0.0.0.0:4321

	# the number of threads to use to process network messages (eosio::bnet_plugin)
	# bnet-threads =

	# remote endpoint of other node to connect to; Use multiple bnet-connect options as needed to compose a network (eosio::bnet_plugin)
	# bnet-connect =

	# this peer will request no pending transactions from other nodes (eosio::bnet_plugin)