Set up your node

This guide will help you set up a Core Lightning node. You'll be up and running in a jiffy!

The Core Lightning implementation has been in production use on the Bitcoin mainnet since early 2018, with the launch of the Blockstream Store. We recommend getting started by experimenting on testnet (or regtest), but the implementation is considered stable and can be safely used on mainnet.

The following steps will get you up and running with Core Lightning:

1. Prerequisites

  • Operating System

    Core Lightning is available on Linux and macOS. To run Core Lightning on Windows, consider using docker.

  • Hardware

    The requirements to run a Core Lightning node, at a minimum, are 4 GB RAM, ~500 GB of storage if you're running a Bitcoin Core full node, or less than 5 GB of storage if you run a pruned Bitcoin Core node or connect to Bitcoin Core remotely. Finally, a trivial amount of reliable network bandwidth is expected.

    For a thorough understanding of the best hardware setup for your usage / scenario, see guidance at hardware considerations.

  • Bitcoin Core

    Core Lightning requires a locally (or remotely) running bitcoind (version 0.16 or above) that is fully caught up with the network you're running on, and relays transactions (ie with blocksonly=0). Pruning (prune=n option in bitcoin.conf) is partially supported, see here for more details. You can also connect your Core Lightning node to a remotely running Bitcoin Core, see here to learn how.

2. Install Core Lightning

3. Configure your node as per your requirements (optional)


Core Lightning (previously c-lightning) is a lightweight, highly customizable and standard compliant implementation of the Lightning Network protocol.

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All rights reserved.

Discussion Forum

The official Core Lightning forum is hosted at discuss.corelightning.org

BuildonL2 Community

The official BuildOnL2 community lives at community.corelightning.org. Join us and build the future of bitcoin on lightning.

Mailing List

For general discussions about CLN implementation, use [email protected]. For the Lightning Network, use [email protected]

Telegram

Community-driven telegram group where most of the node operators hang out. Go to https://t.me/lightningd to join.

Discord

Community-driven discord server where the devs flock together. Go to https://discord.gg/w27fMFESMN to join.

Internet Relay Chat

Don't hesitate to reach out to us on IRC at #lightning-dev @ libera.chat, #c-lightning @ libera.chat.