geth (Go-ethereum)

wikipedia:geth an Ethereum execution client meaning it handles transactions, deployment and execution of smart contracts and contains an embedded computer known as the Ethereum Virtual Machine.

• Homepage: https://geth.ethereum.org/
• Repo: https://github.com/ethereum/go-ethereum
• Installation: brew install ethereum (Péter Szilágyi)
• Hardware requirements
• Configuration:
  • ~/Library/Ethereum/geth/
    • ~/Library/Ethereum/geth/chaindata/
  • ~/Library/Ethereum/goerli/
  • Linux?: ~/.ethereum/geth/
• Features:
  • Snap Sync
• DBs: Pebble, LevelDB

• Geth is a client for Ethereum 1.0

Commands

• geth account
• geth account new

• geth console

• geth --authrpc.addr
• geth --syncmode=fast
• geth --maxpeers
• geth --http
• geth --mine
• geth --metrics
• geth attach

• geth --goerli
• geth --goerli --http
• geth --sepolia

• geth version
• geth --help

Examples

  geth --http --http.addr "0.0.0.0" --http.vhosts "*" --http.api "eth,net,web3,txpool"
geth --goerli --http --http.addr "0.0.0.0" --http.vhosts "*"  --http.api "eth,net,web3,txpool"

geth --http.api eth,web3,net,txpool --ws --ws.api eth,web3,net,txpool

geth (no options)
.../...
WARN [05-31|13:08:45.397] Post-merge network, but no beacon client seen. Please launch one to follow the chain!

Related

• lighthouse beacon_node
• brew install geth (deprecated), use brew install ethereum
• Execution clients
• --authrpc.jwtsecret
• clef
• Blockscout
• Subnet-EVM
• l2-geth, op-geth (Optimism)
• Beacon Node
• geth.ipc

Activities

• Read https://stackoverflow.com/questions/tagged/go-ethereum?tab=Votes
• Create a new Ethereum account using: geth account new

See also

• geth account [ new | import ]
• geth [ account | console | snapshot | --authrpc.addr | version | --sepolia | --goerli | --pprof | --http | --syncmode | --mine ] --rpc.evmtimeout | --ethstats | --help, Geth logs, geth logs WARN, Log.Error, ports: 8551, 30303, 8547, ~/.ethereum/geth/, --verbosity, --config, geth init, devp2p, p2psim, devp2p, geth dumpconfig
• Ethereum clients, geth, Prysm, Nimbus, lighthouse