Electrum Lightning Network walkthrough

nc50lc

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Quote from: bitmover on December 15, 2023, 01:51:36 PM

If I keep sending bitcoin over lightning to my binance account , withdrawal and send again

Will this increase my inbound capacity? Grin

The general answer is no, the gained inbound capacity from sending is not permanent.
As you withdraw from Binance to your Electrum via Lightning, your inbound capacity decreases by its amount.

It depends on the amounts though, "sending" increases your inbound capacity while "receiving" decreases it.
So whether it gains or not depends on how much bitcoins over Lighting you send or receive.

alexrossi

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Quote from: bitmover on December 15, 2023, 01:51:36 PM

Hello

I have a question about inbound capacity.

If I keep sending bitcoin over lightning to my binance account , withdrawal and send again

Will this increase my inbound capacity? Grin

Also

If I created the Channel with the minimum 0.002 btc will I have problems later with capacity?

Thanks.

If you do the withdrawal again on LN it will lower the inbound capacity, and you will still pay the (at least small) tx fees of LN. So it wouldn't be effective.

If you do the withdrawal on chain, then yes, you will have higher inbound capacity at the cost of a onchain tx

bitmover

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bitcoindata.science

Hello

I have a question about inbound capacity.

If I keep sending bitcoin over lightning to my binance account , withdrawal and send again

Will this increase my inbound capacity? Grin

Also

If I created the Channel with the minimum 0.002 btc will I have problems later with capacity?

Thanks.

alexrossi

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If I have a headless watchtower (electrum on a linux server), with what command I can check what channels is currently monitoring?

with "python3 run_electrum get_watchtower_ctn" I'm asked the channel endpoint, and I also think is a client related command (it asks to have an active wallet)

Also:

python3 run_electrum get_ssl_domain
Supplied CA Not Found in Trusted CA Store.

Is normal that with a standard letsencrypt cert I always get this output, even if the watchtower is currently running?

nc50lc

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Quote from: internetional on September 27, 2023, 02:35:35 PM

Quote from: nc50lc on September 27, 2023, 12:26:07 AM

Is it offline or just "Disconnected" in your channel status?

You are right, it was disconnected. Doesn't "Disconnected" mean offline?

Not all the time, it can also be interpreted as your lightning node (electrum client) can't establish connection to the other party.
Most of the time, you'll just have to wait for a few minutes for the status to switch to "OPEN" if there nothing wring with the connection.

Quote from: internetional on September 27, 2023, 02:35:35 PM

I don't understand one more thing. My outbound liquidity initially was around 1.2 M Sat, but when I tried to send more than 500 K, I got an error like this:

Quote

HTLC value sum (sum of pending htlcs: 0.0 sat plus new htlc: 580239.726 sat) would exceed max allowed: 577956.0 sat

. So, I needed 3 transfers to send 1.2 M Sat. Why?

I haven't sent amount higher that that with lightning so I haven't experienced it, but I believe it's a config of your channel set by the remote node:

internetional

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Quote from: nc50lc on September 27, 2023, 12:26:07 AM

Is it offline or just "Disconnected" in your channel status?

You are right, it was disconnected. Doesn't "Disconnected" mean offline?

Today the status of the channel is "Open". I checked several times, everything is okay. I sent some transfers, they were routed quickly.

I don't understand one more thing. My outbound liquidity initially was around 1.2 M Sat, but when I tried to send more than 500 K, I got an error like this:

Quote

HTLC value sum (sum of pending htlcs: 0.0 sat plus new htlc: 580239.726 sat) would exceed max allowed: 577956.0 sat

. So, I needed 3 transfers to send 1.2 M Sat. Why?

nc50lc

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Is it offline or just "Disconnected" in your channel status?
Because it's available at my end (mainnet).

Recent screenshot (just now):

Quote from: internetional on September 26, 2023, 01:47:34 PM

-snip-
Is this a usual status for this node? Is it worth waiting, or it's time to force-close the channel and to open another one to another, non-default node?

Probably not, those are hand-picked by the devs, one thing for being active Lightning nodes.

internetional

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Yesterday I opened my first channel via Electrum. For the node to which I could open the channel, the default option was trampoline hodlisterco. I decided not to change anything for the first time, and opened a channel to it. But this node is offline for already more than 24 hours. So I cannot use my money.

Is this a usual status for this node? Is it worth waiting, or it's time to force-close the channel and to open another one to another, non-default node?

nc50lc

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Quote from: Saint-loup on February 05, 2023, 03:13:50 PM

Quote from: Rath_ on July 04, 2020, 01:39:46 PM

-snip-

Does anyone know if there is currently a convenient way to choose which channel you want to be used to send a LN transaction, when you have several channels opened, without having to freeze all the other channels during the transaction please? Same question when you need to receive a payment through a generated invoice : is there a way to receive the payment on a specific channel without freezing all the other channels till you receive the transaction?

Freeze is the only way to accomplish that unfortunately.

You can utilize rebalance to reduce a channel's inbound capacity by sending your other channel's amount to it so that it can't be used to receive until it gains inbound capacity again.
Selecting two channels using CTRL-click will enable the grayed-out "Rebalance" button.
You can also setup channels to Electrum's trampoline nodes and others with normal nodes so whenever you disable "Use trampoline routing", your channels with trampoline nodes will have their send capacity frozen.
But those are more inconvenient than just freezing the channel's inbound/outbound capacity.

BlackHatCoiner

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Farewell, Leo

Quote from: Saint-loup on February 05, 2023, 03:44:11 PM

I want to be able to decide which trampoline node I want to use because some of them seem to work more efficiently than other.

By more efficiently, you mean faster?

Quote from: Saint-loup on February 05, 2023, 03:44:11 PM

If I need to increase the receiving capacity of one channel, I want to be able to select it to send my next payment, same thing for a channel with a low sending capacity.

I see. Unfortunately, no. It isn't possible from any user interfaces, as far as my lightning software experience goes. That's rather a specialized setting, only accessible if you dive into the source code. If you don't do that, which I presume you won't, your best course is to complete the payment using any channel and rebalance afterwards using a plugin. In both C-Lightning and LND, there is such plugin[1][2], but I'm not sure about Electrum.

[1] https://github.com/lightningd/plugins/tree/master/rebalance
[2] https://github.com/C-Otto/rebalance-lnd

Saint-loup

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Quote from: BlackHatCoiner on February 05, 2023, 03:23:17 PM

Quote from: Saint-loup on February 05, 2023, 03:13:50 PM

Does anyone know if there is currently a convenient way to choose which channel you want to be used to send a LN transaction, when you have several channels opened, without having to freeze all the other channels during the transaction please?

Most wallet software will choose the cheapest path, which is usually the shortest one. What do you want to accomplish? I don't find it reasonable to want your transaction to be charged higher. I could think of a privacy-related reason, but even that is invalid, especially when you receive, because you reveal your public key in BOL11 invoice.

No it's not a matter of privacy or of datas shown in the BOLT11 invoice. I don't want to accomplish anything special actually, I just want to be able to do that because I have different channels using different trampoline nodes, and I want to be able to decide which trampoline node I want to use because some of them seem to work more efficiently than other. In addition I also want to do that to be able to manage the receiving/sending capacity of my different channels. If I need to increase the receiving capacity of one channel, I want to be able to select it to send my next payment, same thing for a channel with a low sending capacity.

BlackHatCoiner

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Farewell, Leo

Quote from: Saint-loup on February 05, 2023, 03:13:50 PM

Does anyone know if there is currently a convenient way to choose which channel you want to be used to send a LN transaction, when you have several channels opened, without having to freeze all the other channels during the transaction please?

Most wallet software will choose the cheapest path, which is usually the shortest one. What do you want to accomplish? I don't find it reasonable to want your transaction to be charged higher. I could think of a privacy-related reason, but even that is invalid, especially when you receive, because you reveal your public key in BOL11 invoice.

Saint-loup

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Quote from: Rath_ on July 04, 2020, 01:39:46 PM

Go to the 'Send' tab and paste your invoice. 'Description' field will be automatically filled since this information is usually provided in the invoice. Note that you will not be able to send all of your coins. Each channel must maintain a reserve for its closure fees. You can see how much you can send from each channel by going to the 'Channels' tab, right-clicking on a channel and selecting 'Details...'. You cannot send from multiple channels at once.

Does anyone know if there is currently a convenient way to choose which channel you want to be used to send a LN transaction, when you have several channels opened, without having to freeze all the other channels during the transaction please? Same question when you need to receive a payment through a generated invoice : is there a way to receive the payment on a specific channel without freezing all the other channels till you receive the transaction?

NotATether

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I know its possible to run Electrum as a daemon and as a GUI on the same machine simultaneously - I already tried that a while ago.

I'm thinking of setting up a watchtower on the same machine (so I don't have to rent a box for that) so I don't have to worry about keeping Electrum open all the time.

Anyone here tried doing that before?

nc50lc

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Quote from: moejoejay on October 24, 2022, 08:13:27 AM

Quote

The issue was opening a channel between two Electrum wallets (e.g. "Electrum wallet 1" as your Electrum wallet, "Electrum wallet 2" as remote node).
Means that "Electrum wallet 1" should be able to open a channel by using "Electrum wallet 2" 's nodeid (and IP).

Ok than i missunderstood this, u mean the direct connection between 2 wallets with the same ln node or.

I tried this out with an same endurance Node on both (local/remote) sides.
Works flawless
but may u mean anything else

No, if you follow the previous conversation, it'll point you to the quoted reply in the post at the top of this page.
It's all about direct connection between two Electrum, so there'll be no other node like "endurance" in between.

If endurance node is involved, it's now: between Electrum1 and endurance; and, between Electrum2 and endurance

This reply:

Quote from: satscraper on February 10, 2022, 09:11:41 AM

-snip-
Thanks, that helped. Now I have the choice between two options one of which is Remote Node ID and this is exactly what I would like to use. But I'd like to have channel exclusively between two wallets I own, no middle-position node in between. Is that possible or the only way for me to have my wallets LN-connected is to establish connection of each of two wallets to one and the same known peer?

As you can see, what you've tried is always been possible and the "only way" if direct connection wont work.
What he want is a direct channel between his two Electrum wallets, which doesn't work.

moejoejay

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Quote

The issue was opening a channel between two Electrum wallets (e.g. "Electrum wallet 1" as your Electrum wallet, "Electrum wallet 2" as remote node).
Means that "Electrum wallet 1" should be able to open a channel by using "Electrum wallet 2" 's nodeid (and IP).

Ok than i missunderstood this, u mean the direct connection between 2 wallets with the same ln node or.

I tried this out with an same endurance Node on both (local/remote) sides.
Works flawless
but may u mean anything else

best regards

nc50lc

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Quote from: moejoejay on October 23, 2022, 04:02:36 PM

Quote

Same here like I've mentioned, that confirmed that I'm not the only one having trouble establishing a channel between two Electrum.

Then i had the ability to spend and recieve ( even without an invoice ) between 2 testnet wallet without any problems.

The issue was opening a channel between two Electrum wallets (e.g. "Electrum wallet 1" as your Electrum wallet, "Electrum wallet 2" as remote node).
Means that "Electrum wallet 1" should be able to open a channel by using "Electrum wallet 2" 's nodeid (and IP).

There hasn't been any issue with sending/receiving through lightning between two Electrum wallets as long there's enough channel capacity.

moejoejay

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Quote

Same here like I've mentioned, that confirmed that I'm not the only one having trouble establishing a channel between two Electrum.

Im not really a pro but i got this working on testnet ( not main) .

What ive had did, i playing around with settings the trampoline server first then switched off and add some other peers to.

Then i made some spends to the testnet Starblocks: https://starblocks.acinq.co

Then i had the ability to spend and recieve ( even without an invoice ) between 2 testnet wallet without any problems.

may that helps

best regards

nc50lc

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Quote from: NotATether on October 20, 2022, 05:20:10 AM

So I get that you need to make a backup of the wallet every time you open a channel. But are these backups encrypted?
-snip-

Those are just "channel backups" which doesn't contain the wallet itself.
I believe it's encrypted by the wallet's xpub (CMIIAW) and it can't be imported to other wallets due to failure in decryption.

For the save backup, it'll be the same as the wallet. If it's encrypted, the backup will be encrypted.

NotATether

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So I get that you need to make a backup of the wallet every time you open a channel. But are these backups encrypted?

In older versions of Electrum, at least in 4.0.9, the backup files created using "Save Backup" are not encrypted.

Topic: Electrum Lightning Network walkthrough (Read 4930 times)