Ethereum Proof of Authority

In this repository your will find a step by step for setup an Ethereum private network with the Consensus PoA (Proof of Authority).

Install Go-lang

sudo add-apt-repository ppa:longsleep/golang-backports 
sudo apt update 
sudo apt install golang-go

Install Geth + Tools

• Access and clone the repository: https://github.com/Dkdaniz/go-ethereum

• enter and Make all

• In the Stable Releases do the Download of Geth & Tools current stable release

• Create a new folder with name utils

• Move the geth and tools for this folder.

Setting Files

• Open Terminal in Folder of your Project

mkdir validators && cd validators && mkdir validator1 validator2 validator3 && cd ../

Create Accounts of Validators

• Open Terminal in Folder of your Project

./utils/geth --datadir validators/validator1/ account new

./utils/geth --datadir validators/validator2/ account new

./utils/geth --datadir validators/validator3/ account new

Save Public Keys

• Open Terminal in Folder of your Project

echo '0xc701373BfEB21913ddfD8a8De0b08476be84A067' >> accounts.txt

echo 'PUBLIC-KEY-VALIDATOR2' >> accounts.txt

echo 'PUBLIC-KEY-VALIDATOR3' >> accounts.txt

Save Passwords

• Open Terminal in Folder of your Project

echo '123456789' > validators/validator1/password.txt

echo '123456789' > validators/validator2/password.txt

echo '123456789' > validators/validator3/password.txt

Create your Genesis file using Puppeth

• Open Terminal in Folder of your Project

• ./utils/puppeth

1 - Specify network name

Please specify a network name to administer (no spaces, hyphens or capital letters please)

• Enter name: YOUR-NETWORK-NAME

2 - Generate a new genesis file

What would you like to do? (default = stats)

• Choose: 2

What would you like to do? (default = stats)

• Choose: 1

3 - Select Consensus Type (proof-of-authority)

Which consensus engine to use? (default = clique)

• Choose: 2

4 - Time to generate a new Block

How many seconds should blocks take? (default = 15)

• Choose: 1

5 - Pre-funded Config

Which accounts should be pre-funded? (advisable at least one)

• Choose: 0x

Should the precompile-addresses (0x1 .. 0xff) be pre-funded with 1 wei? (advisable yes)

• Choose: yes

6 - Specify your chain/network ID

Specify your chain/network ID if you want an explicit one (default = random)

• Choose: 1717

6 - Backup Genesis File

Manage existing genesis

What would you like to do? (default = stats)
 1. Show network stats
 2. Manage existing genesis
 3. Track new remote server
 4. Deploy network components

• Choose: 2

Export genesis configurations

 1. Modify existing configurations
 2. Export genesis configurations
 3. Remove genesis configuration

• Choose: 2

7 - Rename File for genesis.json

• Open Terminal in Folder of your Project

 mv YOUR-NETWORK-NAME.json genesis.json && rm -rf YOUR-NETWORK-NAME-harmony.json

8 - Modify the Genesis file

• Alter period of 1 for 0.

 "clique": {
     "period": 0,
     "epoch": 30000
   }

9 - Initialize the Nodes

• Open Terminal in Folder of your Project

./utils/geth --datadir validators/validator1 init genesis.json 

./utils/geth --datadir validators/validator2 init genesis.json 

./utils/geth --datadir validators/validator3 init genesis.json 

10 - Run the Nodes

Fullnode Without Validator

nohup ../../utils/geth --nousb --datadir=$pwd --syncmode 'full' --port 30311 --rpc --rpcaddr 0.0.0.0 --rpccorsdomain "" --rpcport "8547" --rpcapi "db, eth, net, web3, personal" --ws --wsport 8548 --wsaddr 0.0.0.0 --wsorigins "" --wsapi "web3, eth" &

Validator1

cd validators/validator1 && ../../utils/geth --nousb --datadir=$pwd --syncmode 'full' --port 30310 --miner.gasprice 0 --miner.gastarget 470000000000 --http --http.addr 'localhost' --http.port 8545 --http.api admin,eth,miner,net,txpool,personal,web3 --mine --allow-insecure-unlock --unlock "PUBLIC-KEY-VALIDATOR1" --password password.txt

• Copy Enode:

INFO [12-23|15:19:04.669] Started P2P networking self=enode://061128ea0a67e04017832cf85d6c560a6464db7b475da2161cb8f97341969c8cfe3b749a14fca28b3e3cd0965c4dc6a5d8978a8c85b53881d2e99d602c6379e7@127.0.0.1:30310

In my case is enode://061128ea0a67e04017832cf85d6c560a6464db7b475da2161cb8f97341969c8cfe3b749a14fca28b3e3cd0965c4dc6a5d8978a8c85b53881d2e99d602c6379e7@127.0.0.1:30310

Validator2

cd validators/validator2 && ../../utils/geth --nousb --datadir=$pwd --syncmode 'full' --port 30311 --miner.gasprice 0 --miner.gastarget 470000000000 --http --http.addr 'localhost' --http.port 8546 --http.api admin,eth,miner,net,txpool,personal,web3 --mine --allow-insecure-unlock --unlock "PUBLIC-KEY-VALIDATOR2" --password password.txt && cd ../../.

• Copy Enode:

INFO [12-23|15:23:49.558] Started P2P networking self=enode://ca3a50686129eb9cae43f1b6d1bb14fd47dbd5845ca7a0f3ea5a40e6d8364ec5c10fe634e9a6fbdf5cea662937d0093cd238c24abbe114804132232289bbb83e@127.0.0.1:30311

Validator3

cd validators/validator3 && ../../utils/geth --nousb --datadir=$pwd --syncmode 'full' --port 30312 --miner.gasprice 0 --miner.gastarget 470000000000 --http --http.addr 'localhost' --http.port 8547 --http.api admin,eth,miner,net,txpool,personal,web3 --mine --allow-insecure-unlock --unlock "PUBLIC-KEY-VALIDATOR3" --password password.txt && cd ../../.

INFO [12-23|15:23:49.558] Started P2P networking self=enode://5e0a0e476051c69f24914c5880e682567c745ddcc43f844d8816f838688e415347df096d82e990e45736b75df7db80ea2c2c815052cc202df3583b7a6e52ae8c@127.0.0.1:30312

11 - Create static-nodes.json file

At this stage, you will create a static-nodes.json with all the Enode that was previously created.

[
  "enode://4511239b3b16175dc4ea4f93ed6439e4bdaafa89fb45b0aa77b8849491f872633f1204fb0a6b0cb14bec5d6adafcdd93d6531d8fbfe7f30fd76de34a82737b2b@127.0.0.1:30310",
  "enode://6180de6f00d28833fbde6b6787ae18a5c8505b0d03c5e3b563e9ca7fb3d92117ea08d88fe5f1b013eb8ac5d81cf539d77817cb662791ead1e79f653fffe5184c@127.0.0.1:30311",
  "enode://1675d24f25cad9df731c3b0308ff720d251672b20deb5b294bbc77df82a825f0a45a2d3881918bb98f03eb834f37213c0b77e576d6165a168fc2a8f28a85e7fd@127.0.0.1:30312"
]

Copy static-nodes.json for validators

cp static-nodes.json validators/validator1/static-nodes.json && cp static-nodes.json validators/validator2/static-nodes.json && cp static-nodes.json validators/validator3/static-nodes.json

12 - Run Validators

• Open Terminal in Folder of your Project

cd scripts && bash validator1.sh

• Open new Terminal

cd scripts && bash validator2.sh

• Open new Terminal

cd scripts && bash validator3.sh