多个节点搭建以太坊私有链（两台电脑测试）

 我用的是一台学校发的电脑（ip:），一台自己的笔记本

1.查询两台电脑的IP 

学校电脑：

 

C:\Users\admin>ipconfig

Windows IP 配置


以太网适配器 以太网 3:

   连接特定的 DNS 后缀 . . . . . . . :
   本地链接 IPv6 地址. . . . . . . . : fe80::ac62:352a:be4e:3d9d%17
   IPv4 地址 . . . . . . . . . . . . : 192.168.235.46
   子网掩码  . . . . . . . . . . . . : 255.255.255.0
   默认网关. . . . . . . . . . . . . : 192.168.235.254

笔记本电脑

C:\Users\86159>ipconfig

Windows IP 配置


无线局域网适配器 本地连接* 1:

   媒体状态  . . . . . . . . . . . . : 媒体已断开连接
   连接特定的 DNS 后缀 . . . . . . . :

无线局域网适配器 本地连接* 2:

   媒体状态  . . . . . . . . . . . . : 媒体已断开连接
   连接特定的 DNS 后缀 . . . . . . . :

无线局域网适配器 WLAN:

   连接特定的 DNS 后缀 . . . . . . . :
   本地链接 IPv6 地址. . . . . . . . : fe80::455f:b717:f37b:3c52%18
   IPv4 地址 . . . . . . . . . . . . : 10.173.40.12
   子网掩码  . . . . . . . . . . . . : 255.255.252.0
   默认网关. . . . . . . . . . . . . : 10.173.43.254

以太网适配器 蓝牙网络连接:

   媒体状态  . . . . . . . . . . . . : 媒体已断开连接
   连接特定的 DNS 后缀 . . . . . . . :

2.将两台电脑的防火墙都关掉（保证互相能够ping通）

 3.两台电脑用同一个创世区块

{
  "config": {
    "chainId": 666,
    "homesteadBlock": 0,
    "eip150Block": 0,
    "eip150Hash": "0x0000000000000000000000000000000000000000000000000000000000000000",
    "eip155Block": 0,
    "eip158Block": 0,
    "byzantiumBlock": 0,
    "constantinopleBlock": 0,
    "petersburgBlock": 0,
    "istanbulBlock": 0,
    "ethash": {}
  },
  "nonce": "0x0",
  "timestamp": "0x5ddf8f3e",
  "extraData": "0x0000000000000000000000000000000000000000000000000000000000000000",
  "gasLimit": "0x47b760",
  "difficulty": "0x00002",
  "mixHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
  "coinbase": "0x0000000000000000000000000000000000000000",
  "alloc": { },
  "number": "0x0",
  "gasUsed": "0x0",
  "parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000"
}

4.下面代码分别在两台电脑都执行一遍

geth --datadir 20221050033-2 init genesis.json

geth --datadir 20221050033-2 --nodiscover --networkid 1108 --ipcdisable --port 1111 --rpc --rpcport 2222 console

INFO [11-30|15:06:00.767] Maximum peer count                       ETH=50 LES=0 total=50
INFO [11-30|15:06:00.804] Starting peer-to-peer node               instance=Geth/v1.9.10-stable-58cf5686/windows-amd64/go1.13.6
INFO [11-30|15:06:00.806] Allocated trie memory caches             clean=256.00MiB dirty=256.00MiB
INFO [11-30|15:06:00.808] Allocated cache and file handles         database=C:\\geth-alltools\\privatechain\\20221050033-2\\geth\\chaindata cache=512.00MiB handles=8192
INFO [11-30|15:06:00.826] Opened ancient database                  database=C:\\geth-alltools\\privatechain\\20221050033-2\\geth\\chaindata\\ancient
INFO [11-30|15:06:00.828] Initialised chain configuration          config="{ChainID: 666 Homestead: 0 DAO: <nil> DAOSupport: false EIP150: 0 EIP155: 0 EIP158: 0 Byzantium: 0 Constantinople: 0 Petersburg: 0 Istanbul: 0, Muir Glacier: <nil>, Engine: ethash}"
INFO [11-30|15:06:00.831] Disk storage enabled for ethash caches   dir=C:\\geth-alltools\\privatechain\\20221050033-2\\geth\\ethash count=3
INFO [11-30|15:06:00.833] Disk storage enabled for ethash DAGs     dir=C:\\Users\\admin\\AppData\\Local\\Ethash count=2
INFO [11-30|15:06:00.835] Initialising Ethereum protocol           versions="[64 63]" network=1108 dbversion=<nil>
WARN [11-30|15:06:00.836] Upgrade blockchain database version      from=<nil> to=7
INFO [11-30|15:06:00.838] Loaded most recent local header          number=0 hash=d3d6bb…c5304a td=2 age=3y2w3d
INFO [11-30|15:06:00.841] Loaded most recent local full block      number=0 hash=d3d6bb…c5304a td=2 age=3y2w3d
INFO [11-30|15:06:00.842] Loaded most recent local fast block      number=0 hash=d3d6bb…c5304a td=2 age=3y2w3d
INFO [11-30|15:06:00.845] Regenerated local transaction journal    transactions=0 accounts=0
INFO [11-30|15:06:00.851] Allocated fast sync bloom                size=512.00MiB
INFO [11-30|15:06:00.853] Initialized fast sync bloom              items=0 errorrate=0.000 elapsed=0s
INFO [11-30|15:06:00.862] New local node record                    seq=1 id=643b302852cbb280 ip=127.0.0.1 udp=0 tcp=1111
INFO [11-30|15:06:00.864] Started P2P networking                   self="enode://902d5ae2ac8f3707becc83050a8b4cd5e32bd82ff8c911896cbdfb875b0b83dcdb898caad6b1c7c842b079e2fdea1f0fa74cb9abda0fab5ab634a85ae7090191@127.0.0.1:1111?discport=0"
INFO [11-30|15:06:00.866] HTTP endpoint opened                     url=http://127.0.0.1:2222 cors= vhosts=localhost
WARN [11-30|15:06:00.912] Served eth_coinbase                      reqid=3 t=0s err="etherbase must be explicitly specified"
Welcome to the Geth JavaScript console!

台式电脑：

”enode://902d5ae2ac8f3707becc83050a8b4cd5e32bd82ff8c911896cbdfb875b0b83dcdb898caad6b1c7c842b079e2fdea1f0fa74cb9abda0fab5ab634a85ae7090191@127.0.0.1:1111?discport=0

“

笔记本电脑

"enode://0d1d38a234a12c4d2726c2852ecc3735acfb5da0e223251516025825dfacf7217b3dce11490716f0a29c563714f4a8ada4e550f59ce3f0e3010fcf7f4a6fc572@127.0.0.1:1111?discport=0"

记住这个节点的值

5.将节点加入私链，并查询

将笔记本节点加入台式机节点

 admin.addPeer("enode://0d1d38a234a12c4d2726c2852ecc3735acfb5da0e223251516025825dfacf7217b3dce11490716f0a29c563714f4a8ada4e550f59ce3f0e3010fcf7f4a6fc572@10.173.40.12:1111?discport=0")

然后查询结果：

 

> admin.peers
[{
    caps: ["eth/63", "eth/64"],
    enode: "enode://0d1d38a234a12c4d2726c2852ecc3735acfb5da0e223251516025825dfacf7217b3dce11490716f0a29c563714f4a8ada4e550f59ce3f0e3010fcf7f4a6fc572@10.173.40.12:1111?discport=0",
    id: "d61248975be06520554ecab496451b918cc0cc72755a435c294f474bf2745651",
    name: "Geth/v1.9.10-stable-58cf5686/windows-amd64/go1.13.6",
    network: {
      inbound: false,
      localAddress: "192.168.235.46:52910",
      remoteAddress: "10.173.40.12:1111",
      static: true,
      trusted: false
    },
    protocols: {
      eth: {
        difficulty: 2,
        head: "0xd3d6bb893a6e274cab241245d5df1274c58d664fbb1bfd6e59141c2e0bc5304a",
        version: 64
      }
    }
}]
> net.peerCount
1

同理，台式机节点加入笔记本的私链

 admin.addPeer("enode://902d5ae2ac8f3707becc83050a8b4cd5e32bd82ff8c911896cbdfb875b0b83dcdb898caad6b1c7c842b079e2fdea1f0fa74cb9abda0fab5ab634a85ae7090191@192.168.235.46:1111?discport=0")
true