Setting Up a Private Ethereum Network: Step-by-Step Developer Guide

As the name suggests, this is the private network that can be created by generating a new genesis block.

This is usually the case in private blockchain distributed ledger networks, where a private group of entities start their blockchain and use it as a permissioned blockchain.

Step-by-Step Developer Guide

The following table shows the list of Ethereum network with their network IDs.

These network IDs are used to identify the network by Ethereum clients.

Network name Network ID / Chain ID Ethereum mainnet 1 Morden 2 Ropsten 3 Rinkeby 4 Kovan 42 Ethereum Classic mainnet 61 More discussion on how to connect to testnet and how to set up private nets will be discussed in , Ethereum Development Environment.

Why This Matters for Blockchain Technology

Understanding Private net is not just an academic exercise — it has real-world implications for how blockchain systems are designed, deployed, and secured. Whether you are a developer building decentralized applications, a business leader evaluating blockchain adoption, or a curious learner exploring the technology, this knowledge provides a critical foundation.

Key Points to Remember

  • Private net As the name suggests, this is the private network that can be created by generating a new genesis block.
  • This is usually the case in private blockchain distributed ledger networks, where a private group of entities start their blockchain and use it as a permissioned blockchain.
  • The following table shows the list of Ethereum network with their network IDs.
  • These network IDs are used to identify the network by Ethereum clients.

Conclusion

Private net represents one of the many innovative layers that make blockchain technology so powerful and transformative. As distributed systems continue to evolve, a solid understanding of these core concepts becomes increasingly valuable — not just for developers, but for anyone building, investing in, or working alongside blockchain-powered systems.

Whether you are just starting your blockchain journey or deepening existing expertise, mastering these fundamentals gives you the tools to think clearly about decentralized systems and make smarter decisions in this rapidly evolving space.