5.1 Setup your own private Proof-of-Work Ethereum network with Geth

Setup your own private Proof-of-Work Ethereum network with Geth

Step 1. Defining the private genesis state

genesis.json

{
  "config": {
        "chainId": 0,
        "homesteadBlock": 0,
        "eip155Block": 0,
        "eip158Block": 0
    },
  "alloc"      : {},
  "coinbase"   : "0x0000000000000000000000000000000000000000",
  "difficulty" : "0x20000",
  "extraData"  : "",
  "gasLimit"   : "0x2fefd8",
  "nonce"      : "0x0000000000000042",
  "mixhash"    : "0x0000000000000000000000000000000000000000000000000000000000000000",
  "parentHash" : "0x0000000000000000000000000000000000000000000000000000000000000000",
  "timestamp"  : "0x00"
}

If you'd like to pre-fund some accounts for easier testing, you can populate the alloc field with account configs:

"alloc": {
  "0x0000000000000000000000000000000000000001": {"balance": "111111111"},
  "0x0000000000000000000000000000000000000002": {"balance": "222222222"}
}

Step 2. Init the private network

With the genesis state defined in the above JSON file, you'll need to initialize every Geth node with it prior to starting it up to ensure all blockchain parameters are correctly set:

node 1

[furnace@localhost devnet]$ geth --datadir node1 init genesis.json
WARN [09-06|09:10:00.433] Sanitizing cache to Go's GC limits       provided=1024 updated=613
INFO [09-06|09:10:00.434] Maximum peer count                       ETH=25 LES=0 total=25
INFO [09-06|09:10:00.434] Allocated cache and file handles         database=/home/furnace/bitbucket/zblockchain/ethereumcodes/linux/network/private/pow/github/devnet/node1/geth/chaindata cache=16 handles=16
INFO [09-06|09:10:00.437] Writing custom genesis block
INFO [09-06|09:10:00.437] Persisted trie from memory database      nodes=4 size=660.00B time=35.11µs gcnodes=0 gcsize=0.00B gctime=0s livenodes=1 livesize=0.00B
INFO [09-06|09:10:00.437] Successfully wrote genesis state         database=chaindata                                                                                                      hash=46c37c…95a840
INFO [09-06|09:10:00.437] Allocated cache and file handles         database=/home/furnace/bitbucket/zblockchain/ethereumcodes/linux/network/private/pow/github/devnet/node1/geth/lightchaindata cache=16 handles=16
INFO [09-06|09:10:00.440] Writing custom genesis block
INFO [09-06|09:10:00.440] Persisted trie from memory database      nodes=4 size=660.00B time=99.92µs gcnodes=0 gcsize=0.00B gctime=0s livenodes=1 livesize=0.00B
INFO [09-06|09:10:00.440] Successfully wrote genesis state         database=lightchaindata                                                                                                      hash=46c37c…95a840
[furnace@localhost devnet]$

Note

If you not config the datadir options, then the default datadir will be ~/.ethereum

node 2

[furnace@localhost devnet]$ geth --datadir node2 init genesis.json
WARN [09-06|09:10:09.024] Sanitizing cache to Go's GC limits       provided=1024 updated=613
INFO [09-06|09:10:09.025] Maximum peer count                       ETH=25 LES=0 total=25
INFO [09-06|09:10:09.026] Allocated cache and file handles         database=/home/furnace/bitbucket/zblockchain/ethereumcodes/linux/network/private/pow/github/devnet/node2/geth/chaindata cache=16 handles=16
INFO [09-06|09:10:09.029] Writing custom genesis block
INFO [09-06|09:10:09.029] Persisted trie from memory database      nodes=4 size=660.00B time=34.941µs gcnodes=0 gcsize=0.00B gctime=0s livenodes=1 livesize=0.00B
INFO [09-06|09:10:09.029] Successfully wrote genesis state         database=chaindata                                                                                                      hash=46c37c…95a840
INFO [09-06|09:10:09.029] Allocated cache and file handles         database=/home/furnace/bitbucket/zblockchain/ethereumcodes/linux/network/private/pow/github/devnet/node2/geth/lightchaindata cache=16 handles=16
INFO [09-06|09:10:09.032] Writing custom genesis block
INFO [09-06|09:10:09.032] Persisted trie from memory database      nodes=4 size=660.00B time=99.267µs gcnodes=0 gcsize=0.00B gctime=0s livenodes=1 livesize=0.00B
INFO [09-06|09:10:09.032] Successfully wrote genesis state         database=lightchaindata                                                                                                      hash=46c37c…95a840
[furnace@localhost devnet]$

node 3

[furnace@localhost devnet]$ geth --datadir node3 init genesis.json
WARN [09-06|09:10:13.654] Sanitizing cache to Go's GC limits       provided=1024 updated=613
INFO [09-06|09:10:13.655] Maximum peer count                       ETH=25 LES=0 total=25
INFO [09-06|09:10:13.655] Allocated cache and file handles         database=/home/furnace/bitbucket/zblockchain/ethereumcodes/linux/network/private/pow/github/devnet/node3/geth/chaindata cache=16 handles=16
INFO [09-06|09:10:13.659] Writing custom genesis block
INFO [09-06|09:10:13.659] Persisted trie from memory database      nodes=4 size=660.00B time=31.907µs gcnodes=0 gcsize=0.00B gctime=0s livenodes=1 livesize=0.00B
INFO [09-06|09:10:13.659] Successfully wrote genesis state         database=chaindata                                                                                                      hash=46c37c…95a840
INFO [09-06|09:10:13.659] Allocated cache and file handles         database=/home/furnace/bitbucket/zblockchain/ethereumcodes/linux/network/private/pow/github/devnet/node3/geth/lightchaindata cache=16 handles=16
INFO [09-06|09:10:13.661] Writing custom genesis block
INFO [09-06|09:10:13.662] Persisted trie from memory database      nodes=4 size=660.00B time=100.359µs gcnodes=0 gcsize=0.00B gctime=0s livenodes=1 livesize=0.00B
INFO [09-06|09:10:13.662] Successfully wrote genesis state         database=lightchaindata                                                                                                      hash=46c37c…95a840
[furnace@localhost devnet]$

Step 3. Creating the rendezvous point

[furnace@localhost devnet]$ bootnode --genkey=boot.key
[furnace@localhost devnet]$ bootnode --nodekey=boot.key
INFO [09-04|07:54:16.130] UDP listener up                          self=enode://2cb6fe8f4a73fdc962bae49cfcc131e642a9f3b9d6cff1384d5e14ad7d25ebf715286e812b3ce70a5c9c6797d71cdbd1432e2ac1a0f6cb06cab3e9e7dd33aea4@[::]:30301

Step 4. Starting up your member nodes

node 1

[furnace@localhost devnet]$ geth --datadir=node1 --bootnodes=enode://2cb6fe8f4a73fdc962bae49cfcc131e642a9f3b9d6cff1384d5e14ad7d25ebf715286e812b3ce70a5c9c6797d71cdbd1432e2ac1a0f6cb06cab3e9e7dd33aea4@127.0.0.1:30301
WARN [09-04|07:57:20.117] Sanitizing cache to Go's GC limits       provided=1024 updated=613
INFO [09-04|07:57:20.118] Maximum peer count                       ETH=25 LES=0 total=25
INFO [09-04|07:57:20.119] Starting peer-to-peer node               instance=Geth/v1.8.15-unstable-c1c003e4/linux-amd64/go1.11
INFO [09-04|07:57:20.119] Allocated cache and file handles         database=/home/furnace/bitbucket/zblockchain/ethereumcodes/linux/docs/devnet/node1/geth/chaindata cache=459 handles=1024
INFO [09-04|07:57:20.122] Writing default main-net genesis block
INFO [09-04|07:57:20.337] Persisted trie from memory database      nodes=12356 size=1.88mB time=40.700007ms gcnodes=0 gcsize=0.00B gctime=0s livenodes=1 livesize=0.00B
INFO [09-04|07:57:20.338] Initialised chain configuration          config="{ChainID: 1 Homestead: 1150000 DAO: 1920000 DAOSupport: true EIP150: 2463000 EIP155: 2675000 EIP158: 2675000 Byzantium: 4370000 Constantinople: <nil> Engine: ethash}"
INFO [09-04|07:57:20.338] Disk storage enabled for ethash caches   dir=/home/furnace/bitbucket/zblockchain/ethereumcodes/linux/docs/devnet/node1/geth/ethash count=3
INFO [09-04|07:57:20.338] Disk storage enabled for ethash DAGs     dir=/home/furnace/.ethash                                                                 count=2
INFO [09-04|07:57:20.338] Initialising Ethereum protocol           versions="[63 62]" network=1
INFO [09-04|07:57:20.338] Loaded most recent local header          number=0 hash=d4e567…cb8fa3 td=17179869184
INFO [09-04|07:57:20.338] Loaded most recent local full block      number=0 hash=d4e567…cb8fa3 td=17179869184
INFO [09-04|07:57:20.338] Loaded most recent local fast block      number=0 hash=d4e567…cb8fa3 td=17179869184
INFO [09-04|07:57:20.338] Regenerated local transaction journal    transactions=0 accounts=0
INFO [09-04|07:57:20.338] Starting P2P networking
INFO [09-04|07:57:22.442] UDP listener up                          self=enode://537df2a21cf62056d3008ca01b2d839adef3ea8fdc977bbe92eaba4422b51de6d7546a65ca7e912ccf9b58b786d6ab38d1a9cedba04cd9333920ce917d8b285f@[::]:30303
INFO [09-04|07:57:22.443] IPC endpoint opened                      url=/home/furnace/bitbucket/zblockchain/ethereumcodes/linux/docs/devnet/node1/geth.ipc
INFO [09-04|07:57:22.444] RLPx listener up                         self=enode://537df2a21cf62056d3008ca01b2d839adef3ea8fdc977bbe92eaba4422b51de6d7546a65ca7e912ccf9b58b786d6ab38d1a9cedba04cd9333920ce917d8b285f@[::]:30303

Note

The default port is 30303.

node 2

[furnace@localhost ~]$ geth --datadir=node2 --bootnodes=enode://2cb6fe8f4a73fdc962bae49cfcc131e642a9f3b9d6cff1384d5e14ad7d25ebf715286e812b3ce70a5c9c6797d71cdbd1432e2ac1a0f6cb06cab3e9e7dd33aea4@127.0.0.1:30301
WARN [09-04|08:03:38.276] Sanitizing cache to Go's GC limits       provided=1024 updated=613
INFO [09-04|08:03:38.277] Maximum peer count                       ETH=25 LES=0 total=25
INFO [09-04|08:03:38.277] Starting peer-to-peer node               instance=Geth/v1.8.15-unstable-c1c003e4/linux-amd64/go1.11
INFO [09-04|08:03:38.277] Allocated cache and file handles         database=/home/furnace/node2/geth/chaindata cache=459 handles=1024
INFO [09-04|08:03:38.282] Initialised chain configuration          config="{ChainID: 1 Homestead: 1150000 DAO: 1920000 DAOSupport: true EIP150: 2463000 EIP155: 2675000 EIP158: 2675000 Byzantium: 4370000 Constantinople: <nil> Engine: ethash}"
INFO [09-04|08:03:38.282] Disk storage enabled for ethash caches   dir=/home/furnace/node2/geth/ethash count=3
INFO [09-04|08:03:38.282] Disk storage enabled for ethash DAGs     dir=/home/furnace/.ethash           count=2
INFO [09-04|08:03:38.282] Initialising Ethereum protocol           versions="[63 62]" network=1
INFO [09-04|08:03:38.283] Loaded most recent local header          number=0 hash=d4e567…cb8fa3 td=17179869184
INFO [09-04|08:03:38.283] Loaded most recent local full block      number=0 hash=d4e567…cb8fa3 td=17179869184
INFO [09-04|08:03:38.283] Loaded most recent local fast block      number=0 hash=d4e567…cb8fa3 td=17179869184
INFO [09-04|08:03:38.283] Loaded local transaction journal         transactions=0 dropped=0
INFO [09-04|08:03:38.283] Regenerated local transaction journal    transactions=0 accounts=0
INFO [09-04|08:03:38.283] Starting P2P networking
Fatal: Error starting protocol stack: listen udp :30303: bind: address already in use
[furnace@localhost ~]$

Note

Startup failed because the default port 30303 was already in use. Fix it by point the port option.

Set option port to 30304

[furnace@localhost devnet]$ geth --datadir=node2 --bootnodes=enode://2cb6fe8f4a73fdc962bae49cfcc131e642a9f3b9d6cff1384d5e14ad7d25ebf715286e812b3ce70a5c9c6797d71cdbd1432e2ac1a0f6cb06cab3e9e7dd33aea4@127.0.0.1:30301 --port=30304
WARN [09-04|08:28:01.495] Sanitizing cache to Go's GC limits       provided=1024 updated=613
INFO [09-04|08:28:01.496] Maximum peer count                       ETH=25 LES=0 total=25
INFO [09-04|08:28:01.497] Starting peer-to-peer node               instance=Geth/v1.8.15-unstable-c1c003e4/linux-amd64/go1.11
INFO [09-04|08:28:01.497] Allocated cache and file handles         database=/home/furnace/bitbucket/zblockchain/ethereumcodes/linux/docs/devnet/node2/geth/chaindata cache=459 handles=1024
INFO [09-04|08:28:01.500] Writing default main-net genesis block
INFO [09-04|08:28:01.710] Persisted trie from memory database      nodes=12356 size=1.88mB time=39.611433ms gcnodes=0 gcsize=0.00B gctime=0s livenodes=1 livesize=0.00B
INFO [09-04|08:28:01.710] Initialised chain configuration          config="{ChainID: 1 Homestead: 1150000 DAO: 1920000 DAOSupport: true EIP150: 2463000 EIP155: 2675000 EIP158: 2675000 Byzantium: 4370000 Constantinople: <nil> Engine: ethash}"
INFO [09-04|08:28:01.710] Disk storage enabled for ethash caches   dir=/home/furnace/bitbucket/zblockchain/ethereumcodes/linux/docs/devnet/node2/geth/ethash count=3
INFO [09-04|08:28:01.710] Disk storage enabled for ethash DAGs     dir=/home/furnace/.ethash                                                                 count=2
INFO [09-04|08:28:01.710] Initialising Ethereum protocol           versions="[63 62]" network=1
INFO [09-04|08:28:01.710] Loaded most recent local header          number=0 hash=d4e567…cb8fa3 td=17179869184
INFO [09-04|08:28:01.710] Loaded most recent local full block      number=0 hash=d4e567…cb8fa3 td=17179869184
INFO [09-04|08:28:01.710] Loaded most recent local fast block      number=0 hash=d4e567…cb8fa3 td=17179869184
INFO [09-04|08:28:01.710] Regenerated local transaction journal    transactions=0 accounts=0
INFO [09-04|08:28:01.710] Starting P2P networking
INFO [09-04|08:28:03.814] UDP listener up                          self=enode://646be084b610b5187b6b2f59e572b2c421ed2b2dabb303d6cbb768641ada3e5082a740ae9bed0da5ca7558e468235289b885d458543319702f242a451a551027@[::]:30304
INFO [09-04|08:28:03.815] IPC endpoint opened                      url=/home/furnace/bitbucket/zblockchain/ethereumcodes/linux/docs/devnet/node2/geth.ipc
INFO [09-04|08:28:03.816] RLPx listener up                         self=enode://646be084b610b5187b6b2f59e572b2c421ed2b2dabb303d6cbb768641ada3e5082a740ae9bed0da5ca7558e468235289b885d458543319702f242a451a551027@[::]:30304

Step 5. Geth attach by ipc

Attach to node 1

[furnace@localhost devnet]$ geth attach node1/geth.ipc
WARN [09-04|07:58:34.653] Sanitizing cache to Go's GC limits       provided=1024 updated=613
Welcome to the Geth JavaScript console!

instance: Geth/v1.8.15-unstable-c1c003e4/linux-amd64/go1.11
 modules: admin:1.0 debug:1.0 eth:1.0 ethash:1.0 miner:1.0 net:1.0 personal:1.0 rpc:1.0 txpool:1.0 web3:1.0

> eth.blockNumber
0
> exit
[furnace@localhost devnet]$

Attach to node 2

[furnace@localhost devnet]$ geth attach node2/ge
geth/     geth.ipc
[furnace@localhost devnet]$ geth attach node2/geth.ipc
WARN [09-04|08:28:06.980] Sanitizing cache to Go's GC limits       provided=1024 updated=613
Welcome to the Geth JavaScript console!

instance: Geth/v1.8.15-unstable-c1c003e4/linux-amd64/go1.11
 modules: admin:1.0 debug:1.0 eth:1.0 ethash:1.0 miner:1.0 net:1.0 personal:1.0 rpc:1.0 txpool:1.0 web3:1.0

> eth.blockNumber
0
> exit
[furnace@localhost devnet]$

Step 6. Geth attach by rpc

[furnace@localhost devnet]$ geth attach http://127.0.0.1:8545
WARN [09-04|07:59:03.539] Sanitizing cache to Go's GC limits       provided=1024 updated=613
Fatal: Failed to start the JavaScript console: api modules: Post http://127.0.0.1:8545: dial tcp 127.0.0.1:8545: connect: connection refused
[furnace@localhost devnet]$

note

This should startup node by set option rpc, and maybe rpcport when the default port was used.

Startup node 1 with rpc option

[furnace@localhost devnet]$ geth --datadir=node1 --bootnodes=enode://2cb6fe8f4a73fdc962bae49cfcc131e642a9f3b9d6cff1384d5e14ad7d25ebf715286e812b3ce70a5c9c6797d71cdbd1432e2ac1a0f6cb06cab3e9e7dd33aea4@127.0.0.1:30301 --rpc
WARN [09-04|08:32:48.699] Sanitizing cache to Go's GC limits       provided=1024 updated=613
INFO [09-04|08:32:48.700] Maximum peer count                       ETH=25 LES=0 total=25
INFO [09-04|08:32:48.700] Starting peer-to-peer node               instance=Geth/v1.8.15-unstable-c1c003e4/linux-amd64/go1.11
INFO [09-04|08:32:48.700] Allocated cache and file handles         database=/home/furnace/bitbucket/zblockchain/ethereumcodes/linux/docs/devnet/node1/geth/chaindata cache=459 handles=1024
INFO [09-04|08:32:48.743] Initialised chain configuration          config="{ChainID: 1 Homestead: 1150000 DAO: 1920000 DAOSupport: true EIP150: 2463000 EIP155: 2675000 EIP158: 2675000 Byzantium: 4370000 Constantinople: <nil> Engine: ethash}"
INFO [09-04|08:32:48.743] Disk storage enabled for ethash caches   dir=/home/furnace/bitbucket/zblockchain/ethereumcodes/linux/docs/devnet/node1/geth/ethash count=3
INFO [09-04|08:32:48.743] Disk storage enabled for ethash DAGs     dir=/home/furnace/.ethash                                                                 count=2
INFO [09-04|08:32:48.743] Initialising Ethereum protocol           versions="[63 62]" network=1
INFO [09-04|08:32:48.743] Loaded most recent local header          number=0 hash=d4e567…cb8fa3 td=17179869184
INFO [09-04|08:32:48.743] Loaded most recent local full block      number=0 hash=d4e567…cb8fa3 td=17179869184
INFO [09-04|08:32:48.743] Loaded most recent local fast block      number=0 hash=d4e567…cb8fa3 td=17179869184
INFO [09-04|08:32:48.743] Loaded local transaction journal         transactions=0 dropped=0
INFO [09-04|08:32:48.743] Regenerated local transaction journal    transactions=0 accounts=0
INFO [09-04|08:32:48.743] Starting P2P networking
INFO [09-04|08:32:50.853] UDP listener up                          self=enode://537df2a21cf62056d3008ca01b2d839adef3ea8fdc977bbe92eaba4422b51de6d7546a65ca7e912ccf9b58b786d6ab38d1a9cedba04cd9333920ce917d8b285f@[::]:30303
INFO [09-04|08:32:50.854] IPC endpoint opened                      url=/home/furnace/bitbucket/zblockchain/ethereumcodes/linux/docs/devnet/node1/geth.ipc
INFO [09-04|08:32:50.854] HTTP endpoint opened                     url=http://127.0.0.1:8545                                                              cors= vhosts=localhost
INFO [09-04|08:32:50.855] RLPx listener up                         self=enode://537df2a21cf62056d3008ca01b2d839adef3ea8fdc977bbe92eaba4422b51de6d7546a65ca7e912ccf9b58b786d6ab38d1a9cedba04cd9333920ce917d8b285f@[::]:30303

Attach node 1 by rpc

[furnace@localhost devnet]$ geth attach http://localhost:8545
WARN [09-04|08:33:10.002] Sanitizing cache to Go's GC limits       provided=1024 updated=613
Welcome to the Geth JavaScript console!

instance: Geth/v1.8.15-unstable-c1c003e4/linux-amd64/go1.11
 modules: eth:1.0 net:1.0 rpc:1.0 web3:1.0

> eth.blockNumber
0
> exit
[furnace@localhost devnet]$ geth attach http://127.0.0.1:8545
WARN [09-04|08:35:09.600] Sanitizing cache to Go's GC limits       provided=1024 updated=613
Welcome to the Geth JavaScript console!

instance: Geth/v1.8.15-unstable-c1c003e4/linux-amd64/go1.11
 modules: eth:1.0 net:1.0 rpc:1.0 web3:1.0

> eth.blockNumber
0
> exit
[furnace@localhost devnet]$

Startup node 2 with rpc option

[furnace@localhost devnet]$ geth --datadir=node2 --bootnodes=enode://2cb6fe8f4a73fdc962bae49cfcc131e642a9f3b9d6cff1384d5e14ad7d25ebf715286e812b3ce70a5c9c6797d71cdbd1432e2ac1a0f6cb06cab3e9e7dd33aea4@127.0.0.1:30301 --port=30304 --rpc
WARN [09-04|08:37:17.912] Sanitizing cache to Go's GC limits       provided=1024 updated=613
INFO [09-04|08:37:17.912] Maximum peer count                       ETH=25 LES=0 total=25
INFO [09-04|08:37:17.913] Starting peer-to-peer node               instance=Geth/v1.8.15-unstable-c1c003e4/linux-amd64/go1.11
INFO [09-04|08:37:17.913] Allocated cache and file handles         database=/home/furnace/bitbucket/zblockchain/ethereumcodes/linux/docs/devnet/node2/geth/chaindata cache=459 handles=1024
INFO [09-04|08:37:17.959] Initialised chain configuration          config="{ChainID: 1 Homestead: 1150000 DAO: 1920000 DAOSupport: true EIP150: 2463000 EIP155: 2675000 EIP158: 2675000 Byzantium: 4370000 Constantinople: <nil> Engine: ethash}"
INFO [09-04|08:37:17.959] Disk storage enabled for ethash caches   dir=/home/furnace/bitbucket/zblockchain/ethereumcodes/linux/docs/devnet/node2/geth/ethash count=3
INFO [09-04|08:37:17.959] Disk storage enabled for ethash DAGs     dir=/home/furnace/.ethash                                                                 count=2
INFO [09-04|08:37:17.959] Initialising Ethereum protocol           versions="[63 62]" network=1
INFO [09-04|08:37:17.960] Loaded most recent local header          number=0 hash=d4e567…cb8fa3 td=17179869184
INFO [09-04|08:37:17.960] Loaded most recent local full block      number=0 hash=d4e567…cb8fa3 td=17179869184
INFO [09-04|08:37:17.960] Loaded most recent local fast block      number=0 hash=d4e567…cb8fa3 td=17179869184
INFO [09-04|08:37:17.960] Loaded local transaction journal         transactions=0 dropped=0
INFO [09-04|08:37:17.960] Regenerated local transaction journal    transactions=0 accounts=0
INFO [09-04|08:37:17.960] Starting P2P networking
INFO [09-04|08:37:20.066] UDP listener up                          self=enode://646be084b610b5187b6b2f59e572b2c421ed2b2dabb303d6cbb768641ada3e5082a740ae9bed0da5ca7558e468235289b885d458543319702f242a451a551027@[::]:30304
INFO [09-04|08:37:20.067] IPC endpoint opened                      url=/home/furnace/bitbucket/zblockchain/ethereumcodes/linux/docs/devnet/node2/geth.ipc
INFO [09-04|08:37:20.067] IPC endpoint closed                      endpoint=/home/furnace/bitbucket/zblockchain/ethereumcodes/linux/docs/devnet/node2/geth.ipc
INFO [09-04|08:37:20.067] Blockchain manager stopped
INFO [09-04|08:37:20.067] Stopping Ethereum protocol
INFO [09-04|08:37:20.068] RLPx listener up                         self=enode://646be084b610b5187b6b2f59e572b2c421ed2b2dabb303d6cbb768641ada3e5082a740ae9bed0da5ca7558e468235289b885d458543319702f242a451a551027@[::]:30304
INFO [09-04|08:37:20.068] Ethereum protocol stopped
INFO [09-04|08:37:20.068] Transaction pool stopped
INFO [09-04|08:37:20.068] Database closed                          database=/home/furnace/bitbucket/zblockchain/ethereumcodes/linux/docs/devnet/node2/geth/chaindata
Fatal: Error starting protocol stack: listen tcp 127.0.0.1:8545: bind: address already in use
[furnace@localhost devnet]$

Note

The default rpc port 8545 was used. Fix this problem by set rpcport option to 8645.

[furnace@localhost devnet]$ geth --datadir=node2 --bootnodes=enode://2cb6fe8f4a73fdc962bae49cfcc131e642a9f3b9d6cff1384d5e14ad7d25ebf715286e812b3ce70a5c9c6797d71cdbd1432e2ac1a0f6cb06cab3e9e7dd33aea4@127.0.0.1:30301 --port=30304 --rpc --rpcport=8645
WARN [09-04|08:39:05.389] Sanitizing cache to Go's GC limits       provided=1024 updated=613
INFO [09-04|08:39:05.390] Maximum peer count                       ETH=25 LES=0 total=25
INFO [09-04|08:39:05.390] Starting peer-to-peer node               instance=Geth/v1.8.15-unstable-c1c003e4/linux-amd64/go1.11
INFO [09-04|08:39:05.390] Allocated cache and file handles         database=/home/furnace/bitbucket/zblockchain/ethereumcodes/linux/docs/devnet/node2/geth/chaindata cache=459 handles=1024
INFO [09-04|08:39:05.397] Initialised chain configuration          config="{ChainID: 1 Homestead: 1150000 DAO: 1920000 DAOSupport: true EIP150: 2463000 EIP155: 2675000 EIP158: 2675000 Byzantium: 4370000 Constantinople: <nil> Engine: ethash}"
INFO [09-04|08:39:05.397] Disk storage enabled for ethash caches   dir=/home/furnace/bitbucket/zblockchain/ethereumcodes/linux/docs/devnet/node2/geth/ethash count=3
INFO [09-04|08:39:05.397] Disk storage enabled for ethash DAGs     dir=/home/furnace/.ethash                                                                 count=2
INFO [09-04|08:39:05.397] Initialising Ethereum protocol           versions="[63 62]" network=1
INFO [09-04|08:39:05.398] Loaded most recent local header          number=0 hash=d4e567…cb8fa3 td=17179869184
INFO [09-04|08:39:05.398] Loaded most recent local full block      number=0 hash=d4e567…cb8fa3 td=17179869184
INFO [09-04|08:39:05.398] Loaded most recent local fast block      number=0 hash=d4e567…cb8fa3 td=17179869184
INFO [09-04|08:39:05.398] Loaded local transaction journal         transactions=0 dropped=0
INFO [09-04|08:39:05.398] Regenerated local transaction journal    transactions=0 accounts=0
INFO [09-04|08:39:05.398] Starting P2P networking
INFO [09-04|08:39:07.505] UDP listener up                          self=enode://646be084b610b5187b6b2f59e572b2c421ed2b2dabb303d6cbb768641ada3e5082a740ae9bed0da5ca7558e468235289b885d458543319702f242a451a551027@[::]:30304
INFO [09-04|08:39:07.506] IPC endpoint opened                      url=/home/furnace/bitbucket/zblockchain/ethereumcodes/linux/docs/devnet/node2/geth.ipc
INFO [09-04|08:39:07.506] HTTP endpoint opened                     url=http://127.0.0.1:8645                                                              cors= vhosts=localhost
INFO [09-04|08:39:07.508] RLPx listener up                         self=enode://646be084b610b5187b6b2f59e572b2c421ed2b2dabb303d6cbb768641ada3e5082a740ae9bed0da5ca7558e468235289b885d458543319702f242a451a551027@[::]:30304

Attach node 2 by rpc

[furnace@localhost devnet]$ geth attach http://127.0.0.1:8645
WARN [09-04|08:39:19.784] Sanitizing cache to Go's GC limits       provided=1024 updated=613
Welcome to the Geth JavaScript console!

instance: Geth/v1.8.15-unstable-c1c003e4/linux-amd64/go1.11
 modules: eth:1.0 net:1.0 rpc:1.0 web3:1.0

> eth.blockNumber
0
> exit
[furnace@localhost devnet]$

Appendix A. Programatically interfacing Geth nodes

As a developer, sooner rather than later you'll want to start interacting with Geth and the Ethereum network via your own programs and not manually through the console. To aid this, Geth has built-in support for a JSON-RPC based APIs (standard APIs and Geth specific APIs). These can be exposed via HTTP, WebSockets and IPC (unix sockets on unix based platforms, and named pipes on Windows).

The IPC interface is enabled by default and exposes all the APIs supported by Geth, whereas the HTTP and WS interfaces need to manually be enabled and only expose a subset of APIs due to security reasons. These can be turned on/off and configured as you'd expect.

HTTP based JSON-RPC API options:

  • rpc Enable the HTTP-RPC server
  • rpcaddr HTTP-RPC server listening interface (default: "localhost")
  • rpcport HTTP-RPC server listening port (default: 8545)
  • rpcapi API's offered over the HTTP-RPC interface (default: "eth,net,web3")
  • rpccorsdomain Comma separated list of domains from which to accept cross origin requests (browser enforced)
  • ws Enable the WS-RPC server
  • wsaddr WS-RPC server listening interface (default: "localhost")
  • wsport WS-RPC server listening port (default: 8546)
  • wsapi API's offered over the WS-RPC interface (default: "eth,net,web3")
  • wsorigins Origins from which to accept websockets requests
  • ipcdisable Disable the IPC-RPC server
  • ipcapi API's offered over the IPC-RPC interface (default: "admin,debug,eth,miner,net,personal,shh,txpool,web3")
  • ipcpath Filename for IPC socket/pipe within the datadir (explicit paths escape it)

Appendix B. Running a private miner

Startup node 3 as miner

[furnace@localhost devnet]$ geth --datadir=node3 --bootnodes=enode://2cb6fe8f4a73fdc962bae49cfcc131e642a9f3b9d6cff1384d5e14ad7d25ebf715286e812b3ce70a5c9c6797d71cdbd1432e2ac1a0f6cb06cab3e9e7dd33aea4@127.0.0.1:30301 --port=30305 --rpc --rpcport=8745 --mine --minerthreads=1 --etherbase=0x0000000000000000000000000000000000000000
WARN [09-04|08:46:40.525] Sanitizing cache to Go's GC limits       provided=1024 updated=613
INFO [09-04|08:46:40.525] Maximum peer count                       ETH=25 LES=0 total=25
INFO [09-04|08:46:40.526] Starting peer-to-peer node               instance=Geth/v1.8.15-unstable-c1c003e4/linux-amd64/go1.11
INFO [09-04|08:46:40.526] Allocated cache and file handles         database=/home/furnace/bitbucket/zblockchain/ethereumcodes/linux/docs/devnet/node3/geth/chaindata cache=459 handles=1024
INFO [09-04|08:46:40.532] Initialised chain configuration          config="{ChainID: 1 Homestead: 1150000 DAO: 1920000 DAOSupport: true EIP150: 2463000 EIP155: 2675000 EIP158: 2675000 Byzantium: 4370000 Constantinople: <nil> Engine: ethash}"
INFO [09-04|08:46:40.532] Disk storage enabled for ethash caches   dir=/home/furnace/bitbucket/zblockchain/ethereumcodes/linux/docs/devnet/node3/geth/ethash count=3
INFO [09-04|08:46:40.532] Disk storage enabled for ethash DAGs     dir=/home/furnace/.ethash                                                                 count=2
INFO [09-04|08:46:40.532] Initialising Ethereum protocol           versions="[63 62]" network=1
INFO [09-04|08:46:40.532] Loaded most recent local header          number=0 hash=d4e567…cb8fa3 td=17179869184
INFO [09-04|08:46:40.533] Loaded most recent local full block      number=0 hash=d4e567…cb8fa3 td=17179869184
INFO [09-04|08:46:40.533] Loaded most recent local fast block      number=0 hash=d4e567…cb8fa3 td=17179869184
INFO [09-04|08:46:40.533] Loaded local transaction journal         transactions=0 dropped=0
INFO [09-04|08:46:40.533] Regenerated local transaction journal    transactions=0 accounts=0
INFO [09-04|08:46:40.533] Starting P2P networking
INFO [09-04|08:46:42.639] UDP listener up                          self=enode://7fc29b99d8e8d2459b263d03fd24cfd67c841a3318d27125095a72c5ce430e3a0b3f2133b0e9835a6a06d488ebdf9b622c7fbfd163df8b4b88378179b1097349@[::]:30305
INFO [09-04|08:46:42.639] IPC endpoint opened                      url=/home/furnace/bitbucket/zblockchain/ethereumcodes/linux/docs/devnet/node3/geth.ipc
INFO [09-04|08:46:42.640] HTTP endpoint opened                     url=http://127.0.0.1:8745                                                              cors= vhosts=localhost
INFO [09-04|08:46:42.640] Transaction pool price threshold updated price=18000000000
INFO [09-04|08:46:42.640] Updated mining threads                   threads=1
INFO [09-04|08:46:42.640] Transaction pool price threshold updated price=18000000000
ERROR[09-04|08:46:42.640] Cannot start mining without etherbase    err="etherbase must be explicitly specified"
Fatal: Failed to start mining: etherbase missing: etherbase must be explicitly specified
[furnace@localhost devnet]$

Note

The etherbase should be quoted.

[furnace@localhost devnet]$ geth --datadir=node3 --bootnodes=enode://2cb6fe8f4a73fdc962bae49cfcc131e642a9f3b9d6cff1384d5e14ad7d25ebf715286e812b3ce70a5c9c6797d71cdbd1432e2ac1a0f6cb06cab3e9e7dd33aea4@127.0.0.1:30301 --port=30305 --rpc --rpcport=8745 --mine --minerthreads=1 --etherbase="0x0000000000000000000000000000000000000000"
WARN [09-04|08:48:41.798] Sanitizing cache to Go's GC limits       provided=1024 updated=613
INFO [09-04|08:48:41.798] Maximum peer count                       ETH=25 LES=0 total=25
INFO [09-04|08:48:41.799] Starting peer-to-peer node               instance=Geth/v1.8.15-unstable-c1c003e4/linux-amd64/go1.11
INFO [09-04|08:48:41.799] Allocated cache and file handles         database=/home/furnace/bitbucket/zblockchain/ethereumcodes/linux/docs/devnet/node3/geth/chaindata cache=459 handles=1024
INFO [09-04|08:48:41.805] Initialised chain configuration          config="{ChainID: 1 Homestead: 1150000 DAO: 1920000 DAOSupport: true EIP150: 2463000 EIP155: 2675000 EIP158: 2675000 Byzantium: 4370000 Constantinople: <nil> Engine: ethash}"
INFO [09-04|08:48:41.805] Disk storage enabled for ethash caches   dir=/home/furnace/bitbucket/zblockchain/ethereumcodes/linux/docs/devnet/node3/geth/ethash count=3
INFO [09-04|08:48:41.806] Disk storage enabled for ethash DAGs     dir=/home/furnace/.ethash                                                                 count=2
INFO [09-04|08:48:41.806] Initialising Ethereum protocol           versions="[63 62]" network=1
INFO [09-04|08:48:41.806] Loaded most recent local header          number=0 hash=d4e567…cb8fa3 td=17179869184
INFO [09-04|08:48:41.806] Loaded most recent local full block      number=0 hash=d4e567…cb8fa3 td=17179869184
INFO [09-04|08:48:41.806] Loaded most recent local fast block      number=0 hash=d4e567…cb8fa3 td=17179869184
INFO [09-04|08:48:41.806] Loaded local transaction journal         transactions=0 dropped=0
INFO [09-04|08:48:41.806] Regenerated local transaction journal    transactions=0 accounts=0
INFO [09-04|08:48:41.806] Starting P2P networking
INFO [09-04|08:48:43.913] UDP listener up                          self=enode://7fc29b99d8e8d2459b263d03fd24cfd67c841a3318d27125095a72c5ce430e3a0b3f2133b0e9835a6a06d488ebdf9b622c7fbfd163df8b4b88378179b1097349@[::]:30305
INFO [09-04|08:48:43.914] IPC endpoint opened                      url=/home/furnace/bitbucket/zblockchain/ethereumcodes/linux/docs/devnet/node3/geth.ipc
INFO [09-04|08:48:43.914] HTTP endpoint opened                     url=http://127.0.0.1:8745                                                              cors= vhosts=localhost
INFO [09-04|08:48:43.914] Transaction pool price threshold updated price=18000000000
INFO [09-04|08:48:43.914] Updated mining threads                   threads=1
INFO [09-04|08:48:43.914] Transaction pool price threshold updated price=18000000000
INFO [09-04|08:48:43.914] Etherbase automatically configured       address=0x3ca39a64bC1eda8669D539631B44DbD4A43Ed0F8
INFO [09-04|08:48:43.914] Commit new mining work                   number=1 sealhash=f891fc…479d70 uncles=0 txs=0 gas=0 fees=0 elapsed=112.78µs
INFO [09-04|08:48:43.916] RLPx listener up                         self=enode://7fc29b99d8e8d2459b263d03fd24cfd67c841a3318d27125095a72c5ce430e3a0b3f2133b0e9835a6a06d488ebdf9b622c7fbfd163df8b4b88378179b1097349@[::]:30305
INFO [09-04|08:48:47.393] Generating DAG in progress               epoch=0 percentage=0 elapsed=2.991s
INFO [09-04|08:48:50.359] Generating DAG in progress               epoch=0 percentage=1 elapsed=5.957s
INFO [09-04|08:48:53.311] Generating DAG in progress               epoch=0 percentage=2 elapsed=8.909s

Attach to node 3 and Create new accout

[furnace@localhost devnet]$ geth attach node3/geth.ipc
WARN [09-04|08:47:39.823] Sanitizing cache to Go's GC limits       provided=1024 updated=613
Welcome to the Geth JavaScript console!

instance: Geth/v1.8.15-unstable-c1c003e4/linux-amd64/go1.11
 modules: admin:1.0 debug:1.0 eth:1.0 ethash:1.0 miner:1.0 net:1.0 personal:1.0 rpc:1.0 txpool:1.0 web3:1.0

> personal.newAccount("123456")
"0x3ca39a64bc1eda8669d539631b44dbd4a43ed0f8"
> exit
[furnace@localhost devnet]$

[furnace@localhost devnet]$ geth --datadir=node3 --bootnodes=enode://2cb6fe8f4a73fdc962bae49cfcc131e642a9f3b9d6cff1384d5e14ad7d25ebf715286e812b3ce70a5c9c6797d71cdbd1432e2ac1a0f6cb06cab3e9e7dd33aea4@127.0.0.1:30301 --port=30305 --rpc --rpcport=8745 --mine --minerthreads=1 --etherbase="0x3ca39a64bc1eda8669d539631b44dbd4a43ed0f8"
WARN [09-04|08:51:58.331] Sanitizing cache to Go's GC limits       provided=1024 updated=613
INFO [09-04|08:51:58.332] Maximum peer count                       ETH=25 LES=0 total=25
INFO [09-04|08:51:58.332] Starting peer-to-peer node               instance=Geth/v1.8.15-unstable-c1c003e4/linux-amd64/go1.11
INFO [09-04|08:51:58.332] Allocated cache and file handles         database=/home/furnace/bitbucket/zblockchain/ethereumcodes/linux/docs/devnet/node3/geth/chaindata cache=459 handles=1024
INFO [09-04|08:51:58.338] Initialised chain configuration          config="{ChainID: 1 Homestead: 1150000 DAO: 1920000 DAOSupport: true EIP150: 2463000 EIP155: 2675000 EIP158: 2675000 Byzantium: 4370000 Constantinople: <nil> Engine: ethash}"
INFO [09-04|08:51:58.338] Disk storage enabled for ethash caches   dir=/home/furnace/bitbucket/zblockchain/ethereumcodes/linux/docs/devnet/node3/geth/ethash count=3
INFO [09-04|08:51:58.338] Disk storage enabled for ethash DAGs     dir=/home/furnace/.ethash                                                                 count=2
INFO [09-04|08:51:58.338] Initialising Ethereum protocol           versions="[63 62]" network=1
INFO [09-04|08:51:58.338] Loaded most recent local header          number=0 hash=d4e567…cb8fa3 td=17179869184
INFO [09-04|08:51:58.338] Loaded most recent local full block      number=0 hash=d4e567…cb8fa3 td=17179869184
INFO [09-04|08:51:58.338] Loaded most recent local fast block      number=0 hash=d4e567…cb8fa3 td=17179869184
INFO [09-04|08:51:58.339] Loaded local transaction journal         transactions=0 dropped=0
INFO [09-04|08:51:58.339] Regenerated local transaction journal    transactions=0 accounts=0
INFO [09-04|08:51:58.339] Starting P2P networking
INFO [09-04|08:52:00.462] UDP listener up                          self=enode://7fc29b99d8e8d2459b263d03fd24cfd67c841a3318d27125095a72c5ce430e3a0b3f2133b0e9835a6a06d488ebdf9b622c7fbfd163df8b4b88378179b1097349@[::]:30305
INFO [09-04|08:52:00.463] IPC endpoint opened                      url=/home/furnace/bitbucket/zblockchain/ethereumcodes/linux/docs/devnet/node3/geth.ipc
INFO [09-04|08:52:00.463] HTTP endpoint opened                     url=http://127.0.0.1:8745                                                              cors= vhosts=localhost
INFO [09-04|08:52:00.463] Transaction pool price threshold updated price=18000000000
INFO [09-04|08:52:00.463] Updated mining threads                   threads=1
INFO [09-04|08:52:00.463] Transaction pool price threshold updated price=18000000000
INFO [09-04|08:52:00.463] Commit new mining work                   number=1 sealhash=8e8d43…ca84bb uncles=0 txs=0 gas=0 fees=0 elapsed=142.335µs
INFO [09-04|08:52:00.465] RLPx listener up                         self=enode://7fc29b99d8e8d2459b263d03fd24cfd67c841a3318d27125095a72c5ce430e3a0b3f2133b0e9835a6a06d488ebdf9b622c7fbfd163df8b4b88378179b1097349@[::]:30305
INFO [09-04|08:52:04.025] Generating DAG in progress               epoch=0 percentage=0 elapsed=3.075s
INFO [09-04|08:52:07.084] Generating DAG in progress               epoch=0 percentage=1 elapsed=6.133s
INFO [09-04|08:52:10.146] Generating DAG in progress               epoch=0 percentage=2 elapsed=9.196s
INFO [09-04|08:52:13.256] Generating DAG in progress               epoch=0 percentage=3 elapsed=12.306s
INFO [09-04|08:52:16.326] Generating DAG in progress               epoch=0 percentage=4 elapsed=15.376s

Appendix C. Whole directory struct

[furnace@localhost devnet]$ tree -L 3
.
├── boot.key
├── bootnode
│   ├── geth
│   │   ├── chaindata
│   │   └── lightchaindata
│   └── keystore
├── genesis.json
├── node1
│   ├── geth
│   │   ├── chaindata
│   │   ├── LOCK
│   │   ├── nodekey
│   │   ├── nodes
│   │   └── transactions.rlp
│   └── keystore
├── node2
│   ├── geth
│   │   ├── chaindata
│   │   ├── LOCK
│   │   ├── nodekey
│   │   ├── nodes
│   │   └── transactions.rlp
│   └── keystore
└── node3
    ├── geth
    │   ├── chaindata
    │   ├── LOCK
    │   ├── nodekey
    │   ├── nodes
    │   └── transactions.rlp
    ├── geth.ipc
    └── keystore
        └── UTC--2018-09-04T12-47-55.147311372Z--3ca39a64bc1eda8669d539631b44dbd4a43ed0f8

20 directories, 13 files
[furnace@localhost devnet]$

[furnace@localhost .ethereum]$ tree -L 3
.
└── history

0 directories, 1 file
[furnace@localhost .ethereum]$ cd ../.ethash/
[furnace@localhost .ethash]$ tree -L 3
.
├── full-R23-0000000000000000
└── full-R23-290decd9548b62a8.4037200794235010051

0 directories, 2 files
[furnace@localhost .ethash]$

[furnace@localhost devnet]$ du -h --max-depth=1 ~
4.0K    /home/furnace/.ethereum
2.1G    /home/furnace/.ethash
[furnace@localhost devnet]$

[furnace@localhost ~]$ cd .ethash/
[furnace@localhost .ethash]$ ll -h
total 2.1G
-rw-rw-r--. 1 furnace furnace 1.0G Sep  4 08:57 full-R23-0000000000000000
-rw-rw-r--. 1 furnace furnace 1.1G Sep  4 09:08 full-R23-290decd9548b62a8
[furnace@localhost .ethash]$

Appendix D. The whole steps

1. Prepare

1.1 Create workspace

[furnace@localhost devnet]mkdir devnet [furnace@localhost devnet] cd devnet
[furnace@localhost devnet]mkdir node1 node2 node3 [furnace@localhost devnet]

1.2 Create accounts

[furnace@localhost devnet]geth --datadir node1 account new [furnace@localhost devnet] geth --datadir node1 account new

[furnace@localhost devnet]echo "0xbbd1162680cd96607c8ad781a6ebeb319cddede4" >> node1/accounts.txt [furnace@localhost devnet] echo "0x15b8f695c91015215473b3d6a2f2baadc8464cb3" >> node2/accounts.txt
[furnace@localhost devnet]$ echo '0x25f9e9382c87e9a080dce986b1b4e8355da8f43b' >> node3/accounts.txt

[furnace@localhost devnet]echo '123456' > node1/password.txt [furnace@localhost devnet] echo '123456' > node2/password.txt
[furnace@localhost devnet]$ echo '123456' > node3/password.txt

1.3 Create genesis file

By tool puppeth.

2. Play

The following can execute by script deploy.sh.

2.1 Clear nodes

[furnace@localhost devnet]$ rm -rf ~/.ethash/
[furnace@localhost devnet]$ rm -rf node1/geth/
[furnace@localhost devnet]$ rm -rf node2/geth/
[furnace@localhost devnet]$ rm -rf node3/geth/
[furnace@localhost devnet]$ rm -rf node1/eth_output.log
[furnace@localhost devnet]$ rm -rf node2/eth_output.log
[furnace@localhost devnet]$ rm -rf node3/eth_output.log
[furnace@localhost devnet]$ rm -rf bootnode_output.log

2.2 Init nodes

[furnace@localhost devnet]geth --datadir node1 init genesis.json [furnace@localhost devnet] geth --datadir node2 init genesis.json
[furnace@localhost devnet]$ geth --datadir node3 init genesis.json

2.3 Create bootnode

[furnace@localhost devnet]$ bootnode -genkey boot.key

2.4 Startup bootnode

[furnace@localhost devnet]$ bootnode -nodekey boot.key -verbosity 9 -addr :30301

2.5 Startup node1

[furnace@localhost devnet]$ geth --datadir=node1 --bootnodes=enode://2cb6fe8f4a73fdc962bae49cfcc131e642a9f3b9d6cff1384d5e14ad7d25ebf715286e812b3ce70a5c9c6797d71cdbd1432e2ac1a0f6cb06cab3e9e7dd33aea4@127.0.0.1:30301 --port=30303 --rpc --rpcaddr 0.0.0.0 --rpcport=8545 --rpcapi 'personal,db,eth,net,web3,txpool,miner' --ws --wsaddr 0.0.0.0 --wsport 8546 --wsapi 'personal,db,eth,net,web3,txpool,miner' --wsorigins "*" --verbosity 3 console 2>>node1/eth_output.log

2.6 Startup node2

[furnace@localhost devnet]$ geth --datadir=node2 --bootnodes=enode://2cb6fe8f4a73fdc962bae49cfcc131e642a9f3b9d6cff1384d5e14ad7d25ebf715286e812b3ce70a5c9c6797d71cdbd1432e2ac1a0f6cb06cab3e9e7dd33aea4@127.0.0.1:30301 --port=30304 --rpc --rpcaddr 0.0.0.0 --rpcport=8645 --rpcapi 'personal,db,eth,net,web3,txpool,miner' --ws --wsaddr 0.0.0.0 --wsport 8646 --wsapi 'personal,db,eth,net,web3,txpool,miner' --wsorigins "*" --verbosity 3 console 2>>node2/eth_output.log

2.7 Startup node2

[furnace@localhost devnet]$ geth --datadir=node3 --bootnodes=enode://2cb6fe8f4a73fdc962bae49cfcc131e642a9f3b9d6cff1384d5e14ad7d25ebf715286e812b3ce70a5c9c6797d71cdbd1432e2ac1a0f6cb06cab3e9e7dd33aea4@127.0.0.1:30301 --port=30305 --rpc --rpcaddr 0.0.0.0 --rpcport=8745 --rpcapi 'personal,db,eth,net,web3,txpool,miner' --ws --wsaddr 0.0.0.0 --wsport 8646 --wsapi 'personal,db,eth,net,web3,txpool,miner' --wsorigins "*" --mine --minerthreads=1 --etherbase="0x3ca39a64bc1eda8669d539631b44dbd4a43ed0f8" --verbosity 3 console 2>>node3/eth_output.log

Reference

  1. README, https://github.com/ethereum/go-ethereum/blob/master/README.md
  2. JSON-RPC, https://github.com/ethereum/wiki/wiki/JSON-RPC
  3. Management-APIs, https://github.com/ethereum/go-ethereum/wiki/Management-APIs

Contributor

  1. Windstamp, https://github.com/windstamp
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