mev-toolkit/The-Merge/running-a-node.md

Notes on running an Ethereum node

Setting a dedicated hardware

• Check estimate of the blockchain size
• Minimum specs:
  • CPU with 4+ cores
  • 32 GB+ RAM
  • fast SSD with at least 1T free space
  • 25+ MBit/sec download internet service

Clients

The JSON-RPC interface

• the JSON-RPC API is an interface that allows us to write programs that use an Ethereum client as a gateway to an Ethereum network and blockchain.
• the RPC interface is offered as an HTTP service on port 8545. For security reasons it is restricted, by default, to only accept connections from localhost.