Questions tagged [c-lightning]

c-lightning is a standard compliant implementation of the Lightning Network protocol. The Lightning Network is a scalability solution for Bitcoin, enabling secure and instant transfer of funds between any two parties for any amount.

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1answer
27 views

channel count differs on my site and 1ML

I wonder why: lightning-cli getinfo;listfunds { "id": "035aef5661e1a6e370db60dc0455796800afd5b51fbc12a0a8b34836b15f5d7ef6", "alias": "TWronald✅", "color": "15c315", "num_peers": 41, "...
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1answer
237 views

Why is my “spendable_msat” much lower than “msatoshi_to_us”?

Today I was attempting to send a Lightning Network payment via c-lightning, version v0.7.1-64-gbb30104, using a channel I established in 2018. Strangely, my payment kept failing even if the ...
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1answer
21 views

c-lightning - Unknown Peer

I'm trying to create a channel using c-lighting (testnet), but I keep getting an Unknown Peer error message. I used cli/lightning-cli connect which seemed to work fine. I used cli/lightning-cli ...
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1answer
32 views
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2answers
49 views

Is it possible to connect remotely to a c-lightning node with an exposed TCP port?

If you run a c-lightning node with EXPOSE_TCP set to True, it seems to me it should be possible to connect with it remotely, provided that the c-lightning RCP is listening to all incoming traffic. (IP ...
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1answer
31 views

clightning uses all my resources, … till I have to shutdown!

clightning runs for a while great. However, every second day the computer locks up, I use docker-compose for that: version: "3" services: bitcoind: image: nicolasdorier/docker-bitcoin:0.16.3 ...
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2answers
30 views

How to debug lightning-cli invoice

I tried: lightning-cli invoice 100 invoice20190126 payme and nothing happens. How to debug?
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1answer
54 views

Lightning Network : Pay a Bolt11 Invoice in multiple Payments

Is there a way to pay one Bolt 11 Invoice in multiple payments with Lightning Network? For instance this invoice total amount to pay is 5000 satoshi: ...
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1answer
49 views

invoice amount is 1200000 but I paid 1201035. What is 1035?

I paid the invoice and then I noticed I paid more than the amount of the invoice. 1201035 (I actually paid) - 1200000 (the amount of the invoice) = 1035 (?) My questions are.. What is 1035 satoshi? ...
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0answers
26 views

Error pay invoice. Ran out of routes to try after 2 attempts: see paystatus

I wanted to send some satoshis on testnet lightning network but I got "Ran out of routes to try after 2 attempts: see paystatus" error. I have a channel with 02...48 (1ML.com node ALPHA) and created ...
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2answers
328 views

Make payments Lightning without Invoice?

The Lightning-RFC defines, in BOLT #11, an invoice protocol for proof-of-payment. While this is a pretty cool feature, I was wondering if it would be possible to make a payment without such invoice. ...
2
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1answer
23 views

Lightning Network on testnet - listchannels and listnodes returning empty values

I have setup a lightning node on testnet using c-lightning. The lightning-cli getinfo command output: { "id" : "0315a5746114ab9f3e8f0a3f2f73153ef1e4a8fb58daa54fa97c9603dfab989a30", "alias" : "...
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1answer
145 views

What are the 3 arguments called in function SHA256?

void sha256(struct sha256 *sha, const void *p, size_t size) { struct sha256_ctx ctx; sha256_init(&ctx); sha256_update(&ctx, p, size); sha256_done(&ctx, sha); } I'm trying ...
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1answer
42 views

How to install & activate a c-lightning plugin in lightningd?

I recently stumbled across the https://github.com/lightningd/plugins github repo and wanted to install the autopilot plugin. But how can I install and activate the plugin which I downloaded from the ...
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1answer
80 views

Is it possible to connect to BTCPay server remote c-lightning node?

I have BTCPay server and would like to use external c-lightning node which i have funded and prefer more over BTCPay server local docker container (DC). In store configuration i see that there is ...
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2answers
31 views

Why getinfo() and listchannels() inactive channel count differs?

I have strange results comparing node information outputs between getinfo() and listchannels() calls. Maybe someone has thoughts what is wrong (with my trivial code or with c-lightning itself): chans ...
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1answer
41 views

Question regarding LN node backups

I have LN node running on c-lightning. I am performing ~/.lightning dir backups time-to-time. Let's say after backup i open few new channels and withdraw rest of onchain funds to my electrum. Then i ...
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1answer
84 views

How to know that the account balance of a user needs to be updated after paying/sending an invoice?

Lets say there is a service in which users can have a few satoshis but are also able to deposite/withdraw satoshis by paying/sending a lightning invoice. Let us assume the service has some data store ...
2
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1answer
127 views

lightning-cli list only my channels

After connecting to a busy lighnting node such as 03c856d2dbec7454c48f311031f06bb99e3ca1ab15a9b9b35de14e139aa663b463@testnet-lnd.htlc.me the number of channels my own lightning node knows about ...
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2answers
302 views

c-lightning & Lightweight nodes (no local bitcoind)

I am trying to take advantage of the new release of c-lightning 0.6 that provide the ability to setup a lightweight node (i.e. No Local bitcoind instance running). But did not found any documentation ...
2
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1answer
308 views

Lightning network: Open a channel with a peer that is not a full node?

Is it possible to open a channel with a peer that is not a full node? Or to exchange lightning payments between two peers that are not full nodes, they both have to open a channel with full lightning ...
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1answer
1k views

Closing a channel in Lightning Network

I have some doubts about the closure of a lightning network channel. As far as I know, there can be (al least) 4 different scenarious: one node decides to close the channel, and the other one accept ...
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1answer
66 views

Lightning node on a Bitcoin SPV

is there a way to run a Lightning node on a Bitcoin SPV node at the moment? I've read that both lnd and c-lightning need a Bitcoin Fullnode at this time. This might seem ignorant but i don't want to ...
4
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1answer
109 views

What languages can I write plugins for c-lightning in?

I know that there's a Python library available for writing plugins for c-lightning. What would I need to do to for example use a JVM language like Scala?
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4answers
2k views

Lightning mainnet peer list?

I just set up c-lightning on mainnet and I'd like to open a channel but I can't find a list of node ids and ip addresses. Does anyone know where I can find this?
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1answer
56 views

lightning-cli listnodes is empty. Am I missing something?

I want the result of listnodes like the following. How can I do that? { "nodes" : [ { "nodeid" : "028e5a8e86540f703e1f58880d35d1e318a54c27d84ec1edbcde04a78ed4469a1e", "alias" : "???? ...
2
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1answer
128 views

Is it possible to rebalance channels by sending to yourself (from a channel to an other) in c-lightning? How?

I know it is possible with LND and I don't know if it is possible with Eclair. I have tried to issue an invoice and to find a route with the same node but I got the { "code" : -1, "message" : "Could ...
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1answer
125 views

c-lightning - CHANNELD_AWAITING_LOCKIN - Freeze

I have open 3 channels with a c-lightning node (with rompert.com and satoshis.place and HP). When I look for the funding_txid field on the blockchain the transactions are all confirms for more than ...
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1answer
64 views

Can the lightning network be subject to DoS attacks due to message flooding?

In the current implementations of the Lightning network protocol (c-lightning, eclair and lnd), is there any check that stops spamming/flooding of channel_announcement, mode_announcement or ...
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1answer
40 views

What are the consequences if I spoof an IP address in the node_announcment message?

According to BOLT 07 the node accountment message looks like this: type: 257 (node_announcement) data: [64:signature] [2:flen] [flen:features] [4:timestamp] [33:node_id] [3:...
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1answer
32 views

How to upgrade bitcoind in docker?

I am running the docker version for c-lightning 0.7 On a raspberry I need to clone the blockchain, but it needs version 0.17.1 Looking at the docker-compose.yml file I see: version: "3" services: ...
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2answers
60 views

“Cannot afford transaction”

version 0.7 clightning Listfunds shows me: 963692 satoshi available to fund channels 6280512 satoshi owned in channels 14832105 satoshi total channel capacity When I try to fund a channel with ...
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1answer
53 views

How to get my c-lightning node's private key?

lightning-cli getinfo outputs my node's id, which is its public key. How can I get its underlying private key?
2
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1answer
115 views

C-lightning lightningd crashing

To run a lightning node I followed the instructions here: https://medium.com/@dougvk/run-your-own-mainnet-lightning-node-2d2eab628a8b except that I downloaded and installed bitcoind and lightningd ...
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1answer
56 views

Total channel count differs from explorers

I have my own c-lightning node. listchannels returns 11,455 but explorers, e.g https://explore.casa/ show around 39,000. Do I need to set something to get all channel info? $ lightning-cli ...
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2answers
213 views

How to convert channel id from c-lightning to lnd?

Sorry for the dumb question, but I'm not very good in lightning network... So I have two daemons: c-lightning and LND. Channels from the c-lightning comes like this 505580:1917:1; Channels from the ...
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2answers
35 views

Sharing the lightning-rpc socket

I'm using user "lightning" to start the daemon, but would like to have user "bitcoin" to make the lightning-cli calls. How do I share the lightning-rpc file to do so? Thanks! Francois
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1answer
45 views

How to get all potential routes in c-lightning?

I'm trying to write some services on top of c-lightning and I need to check if certain payments hit certain nodes. lightning-cli getroute nodeid amount riskfactor This gives me a randomly ...
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0answers
28 views

How to upgrade docker clightning

I tried to update clightning to the new version of 0.7 by docker-compose stop docker-compose rm clightning_bitcoin docker-compose up However, it is still version 0.63 Where do I set that it is ...
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1answer
49 views

Why does my c-lightning node pay more than the invoice plus routing fees?

A friend sent me an invoice for 500,000 Satoshis. To my surprise, I sent 502294 Satoshis. Here's what I see from my c-lightning console: "msatoshi": 500,000,000 "msatoshi_sent": 502,294,595 My ...
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1answer
38 views

Clightning with BTCpay server failed

I have setup WooCommerce and BTCpayserver in Google cloud, and synced. Test to buy with BTC seems to work. Adding Lightning fails: I modified in BTCpay Lightning nodes in the Store management "...
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1answer
61 views

How to use remote bitcoind with docker

I want to use multiple nodes with the same remote bitcoind. E.g. my node on my desktop, my node on digital ocean, my node on Google cloud ... I don't want to run everywhere a full bitcoind and pay ...
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0answers
18 views

Why channel closed automatically

I got this message: I tried looking in the logs. Just prior to the channel closing, seems like there was a temporary network issue and the re-establishment message wasn't received by your node. ...
3
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1answer
44 views

Could you open a lightning channel in a confidential transaction?

On an elements sidechain (e.g. liquid) could you open a lightning channel with a confidential transaction. You could probably open a payment channel but could the channel 'speak' to other channels? Or ...
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1answer
58 views

Please help me to understand lightning-cli getinfo more

I have now clightning running for a month. I watch very often lightning-cli getinfo Here I found in the first three weeks: "msatoshi_fees_collected": 0 A week ago it changed to "...
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1answer
137 views

How to close stale lightning channels with c-lightning

I was running a lightning node using c-lightning about 9 months ago. Unfortunately the server was shutdown while a few channels were open. I have restarted the server and updated c-lightning to the ...
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1answer
145 views

How to tell if Lightning nodes are lnd, c-lightning, eclair

I am performing some experiments on the Lightning Testnet Network. I would like to perform the experiment on the 3 main lightning implementations, for which I would like to be able to connect and open ...
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2answers
81 views

Clarification about lightning network

When I run a lightning node, I have to set up a lightning channel with, for example, a highly connected node. Here a first question: When I set up a lightning channel with a node, have I need to put ...
2
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1answer
41 views

C-lightning Implementation password protect hsm while maintaing node access

I was wondering if there was a way to encrypt the folder that contains the hsm_secret (and a lot of other operational files necessary for constant operation of a C-lightning node) without cutting it ...
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2answers
549 views

Running lightning in prune mode

I am running lightning with the LND implementation and a full node. Nevertheless, I heard that it is possible to use Lighting in pruned mode. How is this possible? I read in the LND install ...