1

To run a node on my vps,

  1. --rpccorsdomain "mydomain.com" and set maxconnection, can be set at the same time so that only my own website can send rpc call for security, also I use max connection to limit the bandwidth?
  2. What is the correct geth command for init node and start node? Do I still need the file CustomGenesis.json?
  3. Usually how big the node is? and how long to download?

also, I created some demo account by script lightwallet, I cannot find which one is the private keys from the keystore object:

{"salt":"FneDYAPZOTF4f4Gdylm3wMlJv7QLMcvGB1+upxjQvE8=","hdPathString":"m/0'/0'/0'","encSeed":{"encStr":"ruohZV2xykidwTOmM0GtijnhaMGP2dMSUGdBJ/Teh8KIO4JvTa5cOgKxpYEoKKVmZwzzpzfsAw3XehDlNUYnYwE+J6jgB2N8JGxbBVufz5IMMjS0QOw0y8ILf35TMxbRcQFkEstcDACfOWrn0B98xzuvnAwNmh4lC0iLSTm8SV8t/HQn/hbfbQ==","nonce":"Ia3VbewxYFRHr1HfFJgGl4VElo80xGE9"},"encHdRootPriv":{"encStr":"nxB7ElsU/VIP7fSHmGwIjPrEEC2HY7XFbnrIW1+NPrpmBr/LduWwR7Rc7l2BcK5P3yGh6ZtTo+Z+aGyuH4smZnFLM+cwKqMhMZGQrkZxeeIEUjosLqhs2iwAaF8BHW5Pb4zzfE0DeX2UuRoJAE70KrdE0Ed22u9v1tv2zF6Clg==","nonce":"BTYyIsI1Oq4tGXBOl4Qvok7E0DXbxa3o"},"version":3,"hdIndex":3,"encPrivKeys":{"14ad302bf56a84cc48a553fb83f703a996f184c0":{"key":"BfZzyE1PsJ14f4ONi7CcBkNmWBx71QlDeNFj8MIBXzv9plyRUka/GaxMzKr60Y8D","nonce":"NcImsJ2MbIjZJEIK8Ho6p3SgawFJk/LR"},"648c78407bf7392de7153515e7b2714cec103709":{"key":"lPpTSyRrIxi16lRiZMIlk2CzPctYTUkZOPkmMNz3U5Qus3zko0SwjLRKo9iKAlLf","nonce":"+JhVJtdKKhnvAvdPEeFYem5IBIBsFZpx"},"cf69e4be058fbdc03f921654cc14b865c9c8cbbe":{"key":"8KVDtJ6cQZ39XKwJqB3QfwZPbJjw9a6JA2gVnHQOdOqMaIGxfgsQYg8N9HY9DLQX","nonce":"7yF0LSgUB+88gaC/kGK+1TkFrSE63WEc"}},"addresses":["14ad302bf56a84cc48a553fb83f703a996f184c0","648c78407bf7392de7153515e7b2714cec103709","cf69e4be058fbdc03f921654cc14b865c9c8cbbe"]}

How can I find the private key for each account? This is just for testing

Ismael
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Louis
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2 Answers2

1

You can use this command to initialize your private node and allow rpc connection to specific port at the same time.

geth --datadir ./datadir_new --networkid 2018 --port 30303 --rpc --rpcapi “db,personal,eth,net,web3,debug” --rpccorsdomain=”*” --rpcaddr=”localhost” --rpcport 8545 console
A. Eth
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  • the —networkid 2018, here is it 2018? not 1? – Louis Aug 20 '18 at 13:38
  • It would be what you have specified in your genesis block file. "config": { "chainId": 2018, "homesteadBlock": 0, "eip155Block": 0, "eip158Block": 0 }, – A. Eth Aug 20 '18 at 13:42
  • for main net, is the networkid 1? – Louis Aug 20 '18 at 14:12
  • Yes check here. https://ethereum.stackexchange.com/questions/17051/how-to-select-a-network-id-or-is-there-a-list-of-network-ids/17101 – A. Eth Aug 20 '18 at 14:41
  • Thanks, actually how can I find the genesis file and the startup node ? – Louis Aug 21 '18 at 05:12
  • You have to create a genesis file and place it in the same directory where you created the datadir. Open geth and read the genesis file using this command. Geth --datadir ./datadir init Init.json https://hackernoon.com/heres-how-i-built-a-private-blockchain-network-and-you-can-too-62ca7db556c0 – A. Eth Aug 21 '18 at 11:50
  • { "config": { "chainId": 2018, "homesteadBlock": 0, "eip155Block": 0, "eip158Block": 0 },

    "alloc" : {}, "coinbase" : "0x0000000000000000000000000000000000000000", "difficulty" : "0x400", "extraData" : "", "gasLimit" : "0x2fefd8", "nonce" : "0x0000000000000042", "mixhash" : "0x0000000000000000000000000000000000000000000000000000000000000000", "parentHash" : "0x0000000000000000000000000000000000000000000000000000000000000000", "timestamp" : "0x00" }

     – A. Eth Aug 21 '18 at 16:43
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  1. Yes, you can use these two flags at the same time
  2. The commands can vary depending if you're setting up for a public network or private network. I'll assume you want a to connect to mainnet. So pass the --mainnet flag and it will configure everything for you, network ID, genesis, and bootnodes. Same can be done with --rinkeby and other known networks.
  3. The amount of storage needed by a node varies depending on the network and the synchronization mode. See this page https://etherscan.io/chart2/chaindatasizefast
Kivutar
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