salikzquidz / privnw_poa

Setting up private network using Go Ethereum.

Setup a Consortium/Private network

Specifications for this setup

• Platform : Ethereum
• Client : Go-Ethereum (Geth) version 1.10.3-stable https://geth.ethereum.org/downloads/
• Architecture : amd64
• Go Version : go1.16.3
• OS : linux
• Consensus Model : Clique proof-of-authority
• Nodes : 1 bootnode, 1 sealer node, 1 peer

Configurable setup (for new user + most settings must be unique)

• Network name
• Chain Id, refer to [https://chainlist.org/]
• Other Geth CLI options including http port, http address http cors domain, ipc, bootnodes etc

Below listed the steps need to be taken to correctly configure the setup

1. Create 3 directories for different nodes (bootnode, sealer, and peer)

   • Chaindata will go under the subdirectory 'data' (only for node1 and node2)

2. Create accounts:

   • geth --datadir ./node1/data account new
   • geth --datadir ./node2/data account new

3. Run the puppeth tool to generate the genesis.json file

4. Initialize node1 and node2

   cd node1 && geth --datadir ./data init ../genesis.json
   cd node2 && geth --datadir ./data init ../genesis.json
   

5. Setup bootnode

   • Generate a node key

   bootnode -genkey boot.key
   

   • Start using private key filename

   bootnode -nodekey "./boot.key"
   

   After run second command, take note the enode echoed. It looks something like this "enode://83cab5439021f0dcad5a12faa2c628c212bc072d78d2ebf5dd80c3cdd0d625f262bbac924492f5e0c0ce1140fdbfc569dfa5893615e386395bca2f61f551b722@127.0.0.1:0?discport=30301"

6. Launch the node1 and node2 including the enode value of the bootnode created. Example of command template is as follows

   geth --networkid <> --mine --datadir "./data" --port <> --ipcdisable --syncmode full --http --http.corsdomain "*" --http.port <> --unlock <<public address of node1 without "0x">> --password <<password filename (e.g: password.txt)>> --bootnodes '<>' console

To reuse this setup and configure from the very start, feel free to clean the following folders

1. node1\data\geth
2. node1\data\keystore
3. node2\data\geth
4. node2\data\keystore
5. bootnode\boot.key
6. privnw-harmony.json
7. privnw.json
8. node1\password.txt
9. node2\password.txt
10. node1\launch.sh
11. node2\launch.sh