区块链不同机器的节点相互连接
1节点所在的机器，相互之间可以互联互通
2它们有相同的创世纪文件
3 有相同的networkid
一 第一个节点创建
root@i-67u87x1c:/home/ubuntu# mkdir private-geth
root@i-67u87x1c:/home/ubuntu# cd private-geth/
root@i-67u87x1c:/home/ubuntu/private-geth# vim genesis.json
{
"config": {
"chainId": 15,
"homesteadBlock": 0,
"eip155Block": 0,
"eip158Block": 0
},
"coinbase" : "0x0000000000000000000000000000000000000000",
"difficulty" : "0x40000",
"extraData" : "",
"gasLimit" : "0xffffffff",
"nonce" : "0x0000000000000042",
"mixhash" : "0x0000000000000000000000000000000000000000000000000000000000000000",
"parentHash" : "0x0000000000000000000000000000000000000000000000000000000000000000",
"timestamp" : "0x00",
"alloc": { }
}
初始化创始块
root@i-67u87x1c:/home/ubuntu/private-geth# geth --datadir ./data/00 init genesis.json
WARN [07-06|14:38:34] No etherbase set and no accounts found as default
INFO [07-06|14:38:34] Allocated cache and file handles database=/home/ubuntu/private-geth/data/00/geth/chaindata cache=16 handles=16
INFO [07-06|14:38:34] Writing custom genesis block
INFO [07-06|14:38:34] Successfully wrote genesis state database=chaindata hash=a0e580鈥5e82e
INFO [07-06|14:38:34] Allocated cache and file handles database=/home/ubuntu/private-geth/data/00/geth/lightchaindata cache=16 handles=16
INFO [07-06|14:38:34] Writing custom genesis block
INFO [07-06|14:38:34] Successfully wrote genesis state database=lightchaindata
进入geth后面连接节点
root@i-67u87x1c:/home/ubuntu/private-geth# geth --datadir ./data/00 --networkid 314590 --ipcdisable --port 632 --rpcport 8156 --bootnodes "enode://96f7a95a8c5e7a1f911142d87ce53ae882568be0435016e4803a6d410a9ecc7a69322cee8efbe8499ec7c737c377793182cab8869a076389c6b47626df00450b@192.168.0.4:61910" console
WARN [07-06|14:43:54] No etherbase set and no accounts found as default
INFO [07-06|14:43:54] Starting peer-to-peer node instance=Geth/v1.6.6-stable-10a45cb5/linux-amd64/go1.8.1
INFO [07-06|14:43:54] Allocated cache and file handles database=/home/ubuntu/private-geth/data/00/geth/chaindata cache=128 handles=1024
INFO [07-06|14:43:54] Initialised chain configuration config="{ChainID: 15 Homestead: 0 DAO: DAOSupport: false EIP150: EIP155: 0 EIP158: 0 Metropolis: Engine: unknown}"
INFO [07-06|14:43:54] Disk storage enabled for ethash caches dir=/home/ubuntu/private-geth/data/00/geth/ethash count=3
INFO [07-06|14:43:54] Disk storage enabled for ethash DAGs dir=/root/.ethash count=2
INFO [07-06|14:43:54] Initialising Ethereum protocol versions="[63 62]" network=314590
INFO [07-06|14:43:54] Loaded most recent local header number=0 hash=a0e580鈥5e82e td=262144
INFO [07-06|14:43:54] Loaded most recent local full block number=0 hash=a0e580鈥5e82e td=262144
INFO [07-06|14:43:54] Loaded most recent local fast block number=0 hash=a0e580鈥5e82e td=262144
INFO [07-06|14:43:54] Starting P2P networking
INFO [07-06|14:43:57] UDP listener up self=enode://ca2dd7e49417097f68292c19e4af9a8311223ce9153559f68d0cb618fb961fcf615ded9c90b635c26d0cdff8aa5ee58e2bbf83949df31e841bab03f451f636ec@[::]:632
INFO [07-06|14:43:57] RLPx listener up self=enode://ca2dd7e49417097f68292c19e4af9a8311223ce9153559f68d0cb618fb961fcf615ded9c90b635c26d0cdff8aa5ee58e2bbf83949df31e841bab03f451f636ec@[::]:632
Welcome to the Geth JavaScript console!
instance: Geth/v1.6.6-stable-10a45cb5/linux-amd64/go1.8.1
modules: admin:1.0 debug:1.0 eth:1.0 miner:1.0 net:1.0 personal:1.0 rpc:1.0 txpool:1.0 web3:1.0
> eth.blockNumber
0
> admin.nodeInfo
{
enode: "enode://ca2dd7e49417097f68292c19e4af9a8311223ce9153559f68d0cb618fb961fcf615ded9c90b635c26d0cdff8aa5ee58e2bbf83949df31e841bab03f451f636ec@[::]:632",
id: "ca2dd7e49417097f68292c19e4af9a8311223ce9153559f68d0cb618fb961fcf615ded9c90b635c26d0cdff8aa5ee58e2bbf83949df31e841bab03f451f636ec",
ip: "::",
listenAddr: "[::]:632",
name: "Geth/v1.6.6-stable-10a45cb5/linux-amd64/go1.8.1",
ports: {
discovery: 632,
listener: 632
},
protocols: {
eth: {
difficulty: 262144,
genesis: "0xa0e580c6769ac3dd80894b2a256164a76b796839d2eb7f799ef6b9850ea5e82e",
head: "0xa0e580c6769ac3dd80894b2a256164a76b796839d2eb7f799ef6b9850ea5e82e",
network: 314590
}
}
}
root@i-67u87x1c:/home/ubuntu# ip addr
1: lo: mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 52:54:37:78:15:bb brd ff:ff:ff:ff:ff:ff
inet 192.168.0.3/24 brd 192.168.0.255 scope global eth0
valid_lft forever preferred_lft forever
inet6 fe80::5054:37ff:fe78:15bb/64 scope link
valid_lft forever preferred_lft forever 二 另外一台电脑
创建相同的创始块
root@i-kectp1zd:/home/ubuntu/private-geth#
root@i-kectp1zd:/home/ubuntu/private-geth# geth --datadir ./data/00 init genesis.json
WARN [07-06|15:26:39] No etherbase set and no accounts found as default
INFO [07-06|15:26:39] Allocated cache and file handles database=/home/ubuntu/private-geth/data/00/geth/chaindata cache=16 handles=16
INFO [07-06|15:26:39] Writing custom genesis block
INFO [07-06|15:26:39] Successfully wrote genesis state database=chaindata hash=a0e580鈥5e82e
INFO [07-06|15:26:39] Allocated cache and file handles database=/home/ubuntu/private-geth/data/00/geth/lightchaindata cache=16 handles=16
INFO [07-06|15:26:39] Writing custom genesis block
INFO [07-06|15:26:39] Successfully wrote genesis state database=lightchaindata hash=a0e580鈥5e82e
进入geth
root@i-kectp1zd:/home/ubuntu/private-geth# geth --datadir ./data --networkid 314590 --ipcdisable --port 3456 --rpcport 78 --bootnodes "enode://ca2dd7e49417097f68292c19e4af9a8311223ce9153559f68d0cb618fb961fcf615ded9c90b635c26d0cdff8aa5ee58e2bbf83949df31e841bab03f451f636ec@192.168.0.3:632" console
WARN [07-06|15:30:31] No etherbase set and no accounts found as default
INFO [07-06|15:30:31] Starting peer-to-peer node instance=Geth/v1.6.6-stable-10a45cb5/linux-amd64/go1.8.1
INFO [07-06|15:30:31] Allocated cache and file handles database=/home/ubuntu/private-geth/data/geth/chaindata cache=128 handles=1024
INFO [07-06|15:30:31] Writing default main-net genesis block
INFO [07-06|15:30:31] Initialised chain configuration config="{ChainID: 1 Homestead: 1150000 DAO: 1920000 DAOSupport: true EIP150: 2463000 EIP155: 2675000 EIP158: 2675000 Metropolis: 9223372036854775807 Engine: ethash}"
INFO [07-06|15:30:31] Disk storage enabled for ethash caches dir=/home/ubuntu/private-geth/data/geth/ethash count=3
INFO [07-06|15:30:31] Disk storage enabled for ethash DAGs dir=/root/.ethash count=2
WARN [07-06|15:30:31] Upgrading db log bloom bins
INFO [07-06|15:30:31] Bloom-bin upgrade completed elapsed=123.418碌s
INFO [07-06|15:30:31] Initialising Ethereum protocol versions="[63 62]" network=314590
INFO [07-06|15:30:31] Loaded most recent local header number=0 hash=d4e567鈥b8fa3 td=17179869184
INFO [07-06|15:30:31] Loaded most recent local full block number=0 hash=d4e567鈥b8fa3 td=17179869184
INFO [07-06|15:30:31] Loaded most recent local fast block number=0 hash=d4e567鈥b8fa3 td=17179869184
INFO [07-06|15:30:31] Starting P2P networking
INFO [07-06|15:30:33] UDP listener up self=enode://a22e7a8f502521ac685df1f001c59a06549b5292a42728e08ac3ca3f15603c75a0680f47ced4a736eab047335a0d2331e91ccb483591a83ecae57181878a7e07@[::]:3456
INFO [07-06|15:30:33] RLPx listener up self=enode://a22e7a8f502521ac685df1f001c59a06549b5292a42728e08ac3ca3f15603c75a0680f47ced4a736eab047335a0d2331e91ccb483591a83ecae57181878a7e07@[::]:3456
Welcome to the Geth JavaScript console!
instance: Geth/v1.6.6-stable-10a45cb5/linux-amd64/go1.8.1
modules: admin:1.0 debug:1.0 eth:1.0 miner:1.0 net:1.0 personal:1.0 rpc:1.0 txpool:1.0 web3:1.0
>
> personal.newAccount
function github.com/ethereum/go-ethereum/console.(*bridge).NewAccount-fm()
> personal.newAccount()镜像制作新的电脑
root@i-0mu8dg3p:/home/ubuntu# mkdir private-gethyi
root@i-0mu8dg3p:/home/ubuntu# cd private-gethyi
root@i-0mu8dg3p:/home/ubuntu/private-gethyi# vim genesis.json
{
"config": {
"chainId": 15,
"homesteadBlock": 0,
"eip155Block": 0,
"eip158Block": 0
},
"coinbase" : "0x0000000000000000000000000000000000000000",
"difficulty" : "0x40000",
"extraData" : "",
"gasLimit" : "0xffffffff",
"nonce" : "0x0000000000000042",
"mixhash" : "0x0000000000000000000000000000000000000000000000000000000000000000",
"parentHash" : "0x0000000000000000000000000000000000000000000000000000000000000000",
"timestamp" : "0x00",
"alloc": { }
}
root@i-0mu8dg3p:/home/ubuntu/private-gethyi# geth --datadir ./data/00 init genesis.json
WARN [07-06|16:47:03] No etherbase set and no accounts found as default
INFO [07-06|16:47:03] Allocated cache and file handles database=/home/ubuntu/private-gethyi/data/00/geth/chaindata cache=16 handles=16
INFO [07-06|16:47:03] Writing custom genesis block
INFO [07-06|16:47:03] Successfully wrote genesis state database=chaindata hash=a0e580鈥5e82e
INFO [07-06|16:47:03] Allocated cache and file handles database=/home/ubuntu/private-gethyi/data/00/geth/lightchaindata cache=16 handles=16
INFO [07-06|16:47:03] Writing custom genesis block
INFO [07-06|16:47:03] Successfully wrote genesis state database=lightchaindata
root@i-0mu8dg3p:/home/ubuntu/private-gethyi# geth --datadir ./data/00 --networkid 314590 --ipcdisable --port 123 --rpcport 456 --bootnodes "enode://96f7a95a8c5e7a1f911142d87ce53ae882568be0435016e4803a6d410a9ecc7a69322cee8efbe8499ec7c737c377793182cab8869a076389c6b47626df00450b@192.168.0.4:61910" console
> miner.start()
INFO [07-06|17:05:47] Updated mining threads threads=0
INFO [07-06|17:05:47] Transaction pool price threshold updated price=18000000000
null
> INFO [07-06|17:05:47] Starting mining operation
INFO [07-06|17:05:47] Commit new mining work number=1 txs=0 uncles=0 elapsed=180.94碌s
INFO [07-06|17:21:25] Successfully sealed new block number=1 hash=0b386b鈥dfce1
INFO [07-06|17:21:25] 馃敤 mined potential block number=1 hash=0b386b鈥dfce1
INFO [07-06|17:21:25] Commit new mining work number=2 txs=0 uncles=0 elapsed=3.832ms
INFO [07-06|17:24:43] Successfully sealed new block number=2 hash=6ff261鈥2e306
INFO [07-06|17:24:43] 馃敤 mined potential block number=2 hash=6ff261鈥2e306
INFO [07-06|17:24:43] Commit new mining work number=3 txs=0 uncles=0 elapsed=683.976碌s
INFO [07-06|17:27:11] Successfully sealed new block number=3 hash=92983c鈥222ab
INFO [07-06|17:27:11] 馃敤 mined potential block number=3 hash=92983c鈥222ab
INFO [07-06|17:27:11] Commit new mining work number=4 txs=0 uncles=0 elapsed=704.935碌s
INFO [07-06|17:34:06] Successfully sealed new block number=4 hash=a0272f鈥88970
INFO [07-06|17:34:06] 馃敤 mined potential block number=4 hash=a0272f鈥88970
INFO [07-06|17:34:06] Commit new mining work number=5 txs=0 uncles=0 elapsed=618.806碌s
INFO [07-06|17:45:42] Successfully sealed new block number=5 hash=0880e3鈥9a7d3
INFO [07-06|17:45:42] 馃敤 mined potential block number=5 hash=0880e3鈥9a7d3
INFO [07-06|17:45:42] Commit new mining work number=6 txs=0 uncles=0 elapsed=504.843碌s
>
>
>
> miner.stop()
true
>
>
> eth.blockNumber
5admin.addPeer("enode://96f7a95a8c5e7a1f911142d87ce53ae882568be0435016e4803a6d410a9ecc7a69322cee8efbe8499ec7c737c377793182cab8869a076389c6b47626df00450b@192.168.0.4:61910")
> admin.nodeInfo
{
enode: "enode://c49ec7069c76c6414b2debc6e0f27d3774cc54133681a28c7283b9b822851f21aee710d91ef7ccf10861d9c8cb6fce8b8189ac71441d051353ce9c10bdaf7892@[::]:123",
id: "c49ec7069c76c6414b2debc6e0f27d3774cc54133681a28c7283b9b822851f21aee710d91ef7ccf10861d9c8cb6fce8b8189ac71441d051353ce9c10bdaf7892",
ip: "::",
listenAddr: "[::]:123",
name: "Geth/v1.6.6-stable-10a45cb5/linux-amd64/go1.8.1",
ports: {
discovery: 123,
listener: 123
},
protocols: {
eth: {
difficulty: 1451162,
genesis: "0xa0e580c6769ac3dd80894b2a256164a76b796839d2eb7f799ef6b9850ea5e82e",
head: "0x0880e3e3f21e5601661aeb01fc8589a46d6efe5ef31adebb5f7f9679d7e9a7d3",
network: 314590
}
}
}