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Neo Node Introduction

Nodes that store all of the blockchain are called “full-nodes”. They are connected to the blockchain through a P2P network. All the nodes in the blockchain network are equal, they act both as a client interface and as a server.

There are two full-node programs:

  • Neo-GUI, which has all the basic functions of a user-client including a graphical user interface and is intended for Neo users.

  • Neo-CLI, which provides an external API for basic wallet functions and is intended for Neo developers. It also helps other nodes achieve consensus with the network and is involved in generating new blocks.

The Neo network protocol provides a low level API for some transaction types that are not currently supported by the CLI, such as claiming GAS or sending Neo without an open wallet.

Neo client download address

Releases Official website or Github Github
Source code Github Github

GUI node and CLI node functions comparison

Graphic Interface
Command Line Interface
Create Wallet
Open Wallet
Reconstruct Wallet Index
Show all key pairs
Import/Export Key Pair
Show all addresses
Show all assets
Create Address
Transaction (Asset swap)
Create a multi-party signature contract
Create a custom smart contract
Election Consensus Node
Register assets
Distribution of assets
Extraction of NEO
Batch Generation Address
The consensus of the participating blocks

Neo-CLI security policy

To enable an external program to access the node API, you need to open the firewall port.

To avoid the significant security risk, a whitelist or firewall must be used to block external server requests.

Neo-CLI does not provide the function to remotely switching on/off the wallet, and it does not verify the process when opening a wallet. Therefore, you should set your own security policies. The wallet must be kept open all the time to respond to the withdrawal requests of users. For security reasons, the wallets should be run in an independent server on which the firewall is configured properly, as shown below.

Main NetTest Net
JSON-RPC via HTTPS1033120331
JSON-RPC via HTTP1033220332
P2P via TCP1033320333
P2P via WebSocket1033420334

For more information, please refer to test network .