Test networks
The Ethereum Go client (https://geth.ethereum.org), Geth, can be connected to a test network using one of the following switches available with geth. Geth can be issued with a command-line flag to connect to the desired network:
--goerli : Görli network: pre-configured proof-of-authority test network
--rinkeby : Rinkeby network: pre-configured proof-of-authority test network
--ropsten : Ropsten network: pre-configured proof-of-work test network
--sepolia: Sepolia network: pre-configured proof-of-work test network
$ geth --sepolia
This command will connect to the seoplia network, which is a pre-configured proof of work (PoW) test network.
Geth installation was described in
Chapter 12
, Further Ethereum. Please refer back to this chapter for more detail.
A blockchain explorer for sepolia testnet is located at https://sepolia.etherscan.io and can be used to trace transactions and blocks on the Ethereum test network.
Now let us experiment with building a private network...