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Multinode.md

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Multinode Setup (Regtest Mode)

Preparation

Allow connections to LND over clearnet

  1. Edit ~/citadel/lnd/lnd.conf, set tor.active=0

  2. Restart LND container with docker restart lightning

Using Lightning Polar

Make sure Citadel is running before starting Polar so that ports aren't occupied.

Connecting Bitcoin Nodes

  1. Open Polar, start a Bitcoin node and right click -> "Launch Terminal"
  2. Connect to Citadel's Bitcoin node
bitcoin-cli addnode "172.17.0.1:8333" "add"
  1. Verify the connection
bitcoin-cli getconnectioncount
  1. Start mining some blocks
citadel auto-mine

or click "Quick Mine" in Polar

You should see synchronized block height on both nodes (you may have to refresh Polar)

Opening Channels

Add some funds to your wallets

citadel fund

Citadel -> Polar

  1. Click on the Lightning node you want to open a channel with in with in Polar
  2. On the right, click on the "Connect" tab and copy "P2P External"
  3. Replace the IP with 172.17.0.1
  4. Paste into "Open Channel" UI

Polar -> Citadel

  1. Look up Citadel's node key with lncli getinfo | jq .identity_pubkey -r or find it in the UI
  2. Find the Lightning node you want to open a channel from in Polar, right click -> "Launch Terminal"
  3. Connect nodes
    • LND: lncli connect <node_key>@172.17.0.1
    • CLN: lightning-cli connect <node_key>@172.17.0.1
    • Eclair: eclair-cli connect --uri=<node_key>@172.17.0.1
  4. Open a channel
    • LND: lncli openchannel <node_key> 1000000
    • CLN: lightning-cli fundchannel <node_key> 1000000
    • Eclair: eclair-cli open --nodeId=<node_key> --fundingSatoshis=1000000

If you find that your Polar nodes don't have a large enough balance, try opening some channels in Polar first and it will fund them for you.

Using Extra Nodes In Citadel

tbd