ETH 私链搭建

一.下载ETH源码

　　github网址:　　https://github.com/ethereum/go-ethereum

二.编译

1.首先下载ETH相关的工具

sudo add-apt-repository -y ppa:ethereum/ethereum
sudo apt-get update
sudo apt-get install ethereum

2.下载golang

　　https://golang.google.cn/dl/

　　下载后解压到/usr/local/go,然后在/usr/profile中添加环境变量 :

　　export PATH=$PATH:/usr/local/go/bin

　　export GOROOT=/usr/local/go

3.编译

　　cd go-ethereum

　　make geth

三. 环境配置与运行

　　1.编写genesis.json文件，放到~/config下面，内容如下：

{
  "config": {
        "chainId": 10,
        "homesteadBlock": 0,
        "eip155Block": 0,
        "eip158Block": 0
    },
  "alloc"      : {},
  "coinbase"   : "0x0000000000000000000000000000000000000000",
  "difficulty" : "0x02000000",
  "extraData"  : "",
  "gasLimit"   : "0x2fefd8",
  "nonce"      : "0x0000000000000042",
  "mixhash"    : "0x0000000000000000000000000000000000000000000000000000000000000000",
  "parentHash" : "0x0000000000000000000000000000000000000000000000000000000000000000",
  "timestamp"  : "0x00"
}

　　2.运行节点

geth --datadir ~/ether/n1 init genesis.json
geth --identity "hello" --datadir ~/ether/n1 --port 30301 --rpcport 8101 --networkid 12345 console 2>> ~/ether/n1/geth.log

　　成功后再获取节点信息：

> admin.nodeInfo
{
  enode: "enode://cc21a7d2d54587fbac48cc6ae942918fb6e833811dc2ee8acbecb0a32072273489cf8b863e358b6136ab97774477ee63fe7850d184ba3aca869b190551047066@[::]:30301",
  id: "cc21a7d2d54587fbac48cc6ae942918fb6e833811dc2ee8acbecb0a32072273489cf8b863e358b6136ab97774477ee63fe7850d184ba3aca869b190551047066",
  ip: "::",
  listenAddr: "[::]:30301",
  name: "Geth/hello/v1.8.12-stable-37685930/linux-amd64/go1.10",
  ports: {
    discovery: 30301,
    listener: 30301
  },
  protocols: {
    eth: {
      config: {
        chainId: 10,
        eip150Hash: "0x0000000000000000000000000000000000000000000000000000000000000000",
        eip155Block: 0,
        eip158Block: 0,
        homesteadBlock: 0
      },
      difficulty: 33554432,
      genesis: "0xbf289100224ae9e27375b93509ff30b7624af5e8ae3eae472e814a2dd6ad1419",
      head: "0xbf289100224ae9e27375b93509ff30b7624af5e8ae3eae472e814a2dd6ad1419",
      network: 12345
    }
  }
}

　　将第二台和第三台的机器按照上面的步骤部署，

　　机器二和机器三的encode:

enode://d0aa73f9dbf892ad5ca9fd9a12c67622603b8b126616730d7d202a76edc9a51341b8c3c173a48b3897c11af1b0f4d07fd63122c0dfa9b57cf46b2cb0806ed91f@[::]:30301
enode://545e112d84633ad17c537bd402a87cf17572b5efb5c4e639c88fc16ce41795b28bc1d0ba9f4e4406284566ac88480c9f15651c140f0a37db521beecffe79efa2@[::]:30301

　　将它们加入到机器一的连接中，在机器一中接着运行：

admin.addPeer("enode://d0aa73f9dbf892ad5ca9fd9a12c67622603b8b126616730d7d202a76edc9a51341b8c3c173a48b3897c11af1b0f4d07fd63122c0dfa9b57cf46b2cb0806ed91f@[::]:30301")
admin.addPeer("enode://545e112d84633ad17c537bd402a87cf17572b5efb5c4e639c88fc16ce41795b28bc1d0ba9f4e4406284566ac88480c9f15651c140f0a37db521beecffe79efa2@[::]:30301")

　　再查看连接信息：

> net.peerCount
2
> admin.peers
[{
    caps: ["eth/61", "eth/62", "eth/63"],
    id: "07954219f1a52acfa7562ac841e77860505bb6f6cc948bc540b94326606679d33e805a21b21cb105eaf58f449b0acc84893560919afee00bbc01b8a3fc0213af",
    name: "Geth/v1.4.5-stable-a269a713/linux/go1.6.2/hello",
    network: {
      localAddress: "219.216.65.127:30301",
      remoteAddress: "219.216.64.144:36332"
    },
    protocols: {
      eth: {
        difficulty: 5290384,
        head: "337f2059a1a6d82aee1afba91828d86a8a3b6f85d83b8cb2f8a9210af3b29c1c",
        version: 63
      }
    }
}, {
    caps: ["eth/61", "eth/62", "eth/63"],
    id: "54b7b1dccbe37148cda6e0c9889d23ffb8e2efc905f3c2d001cd66b3b513210a4a426706bab795d83d0c236b9b1647f46947d86c48ac8faf7f802aff318c4aa1",
    name: "Geth/v1.4.5-stable/windows/go1.6.2/hello",
    network: {
      localAddress: "219.216.65.127:30301",
      remoteAddress: "219.216.65.139:50911"
    },
    protocols: {
      eth: {
        difficulty: 5290384,
        head: "337f2059a1a6d82aee1afba91828d86a8a3b6f85d83b8cb2f8a9210af3b29c1c",
        version: 63
      }
    }
}]

表示连接成功，至此结束。

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