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Author Topic: The Lightning Network FAQ  (Read 1822 times)
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Carlton Banks
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August 07, 2019, 10:00:31 PM
 #81

neutrino's probably improved since you last used it, but I don't have any experience of that. The bitcoin network will have alot more neutrino nodes in either the October release or the April release of the core node software, but until then you'll be relying on the small number of btcd nodes that support it

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BitCryptex
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August 08, 2019, 05:35:54 PM
Merited by bitart (1)
 #82

Does it worth the time and the energy to start again with a Raspberry PI? (I have it, I won't use it for anything else, and I don't want to sell it, so if it won't be painfully slow or useless, is there any reason why not to play with it again?)

Using a Raspberry Pi is kinda a bumpy ride. It works well for most of the time, but sometimes, it slows down for no reason. It will be usable if you don't mind waiting another 30 seconds from time to time.

If it's OK to start a node on Raspberry, which one would you recommend?
Is neutrino a working solution now (it was in a really beta state in 2017), or I should attach a HDD to the PI with the blockchain, downloaded previously with a PC, and start a full node?

Most tutorials out there are made for LND which is the only implementation supporting neutrino. Neutrino seems to be working fine since Lightning Lab decided to use it in their mobile mainnet Lightning Network wallet. There's also another light client called Breez available on iOS which also uses neutrino.

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August 08, 2019, 09:08:04 PM
Last edit: August 09, 2019, 12:05:12 AM by Carlton Banks
Merited by BitCryptex (4), bitart (1)
 #83

Does it worth the time and the energy to start again with a Raspberry PI? (I have it, I won't use it for anything else, and I don't want to sell it, so if it won't be painfully slow or useless, is there any reason why not to play with it again?)

Using a Raspberry Pi is kinda a bumpy ride. It works well for most of the time, but sometimes, it slows down for no reason.

try giving bitcoind (and your lightning daemon) a positive nice number, e.g.

Code:
nice -n 9 /usr/bin/bitcoind

this tells the linux kernel to de-prioritize CPU cycles that would otherwise be scheduled for a given process. All userland processes have an implicit nice value of zero, which means there's a FIFO style dynamic in the way they are served by the CPU. The range of valid nice values is from 19 (maximally nice) to -20 (not at all nice). htop tells you what nice value is assigned, possibly top will too

this should help to smooth out resource usage on a raspi


another angle is to boot directly from an SSD (and put your swapfile on the SSD also). This might only work on rasPi 3's, cannot remember specifically. The /boot partition can stay on your microSD, as it's not performance contingent, and likely read-only too. You just need to tell the config files in /boot to start the init process from /dev/sda (or whatever device your SSD system disk is)

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August 08, 2019, 09:54:15 PM
 #84

Thank you guys, that was really helpful!
Now I'll start reading about the changes in LND and I'll try to upgrade my Raspberry to the latest release
(Or I'll start from scratch, maybe it's better)
So at first I don't mind if it will slow down from time to time but if it will happen frequently I know now where to find a nice solution for the problem Smiley
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August 08, 2019, 09:54:20 PM
 #85

The range of valid nice values is from 19 (maximally nice) to -20 (not at all nice). htop tells you what nice value is assigned, possibly top will too

Isn't it exactly the opposite? I looked up this command on a few websites and they said that setting it to -20 makes the process the most favorable. Thanks for your suggestion. I have already contacted Zand_ and we might give it a shot along with neutrino.

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August 08, 2019, 11:34:01 PM
 #86

Isn't it exactly the opposite? I looked up this command on a few websites and they said that setting it to -20 makes the process the most favorable.

correct, except making the lightning/bitcoin daemon more favorable is not what you want to keep the raspi stable Wink

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August 29, 2019, 10:36:06 AM
 #87

Yesterday, Andreas Antonopoulos announced on his YouTube account that "Mastering the Lightning Network" is going to be released next year! It will be possible to contribute on Github to the book and proofread it before it is released. The work on it will start in the middle of September.

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August 29, 2019, 05:39:57 PM
 #88

Yesterday, Andreas Antonopoulos announced on his YouTube account that "Mastering the Lightning Network" is going to be released next year! It will be possible to contribute on Github to the book and proofread it before it is released. The work on it will start in the middle of September.


It's quite surprising since LN maturity is still questionable and it's extension (schnorr, taproot, eltoo, splicing, etc.) are far from ready, but AA decide to make this book anyway.

Regardless, i'm looking forward for this book's release.

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September 02, 2019, 06:19:54 AM
 #89

https://cointelegraph.com/news/australian-coder-warns-users-of-lightning-networks-vulnerabilities

Quote
Australian software programmer and Bitcoin’s (BTC) Lightning Network coder Rusty Russell warned users that
“security issues have been found in various Lightning projects which could cause loss of funds.

Quote
On Aug. 30, Russell published a tweet urging LN nodes operators to update their software as soon as possible. According to the message, his warning concerns all versions of c-lightning prior to 0.7.1, lnd older than 0.7, and eclair up to version 0.3.


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September 02, 2019, 05:25:13 PM
 #90

https://cointelegraph.com/news/australian-coder-warns-users-of-lightning-networks-vulnerabilities

Quote
Australian software programmer and Bitcoin’s (BTC) Lightning Network coder Rusty Russell warned users that
“security issues have been found in various Lightning projects which could cause loss of funds.

Quote
On Aug. 30, Russell published a tweet urging LN nodes operators to update their software as soon as possible. According to the message, his warning concerns all versions of c-lightning prior to 0.7.1, lnd older than 0.7, and eclair up to version 0.3.



It's very surprising news, who would expect Lightning Network protocol and client which are on development phase have security issue which could cause loss of funds Shocked

I guess majority of Bitcoiner don't know how to read,

N.B. This is still early technology and there’s a risk of losing all of your funds. We recommend not putting in more money than you are willing to lose.

There are multiple known major issues with the client, so it is not recommended to use it with real money at this point.

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September 02, 2019, 05:30:14 PM
 #91

It's very surprising news, who would expect Lightning Network protocol and client which are on development phase have security issue which could cause loss of funds Shocked
Lol Tongue
The fact that the loss of funds "could happen" but hasn't happened yet is more surprising Tongue

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September 03, 2019, 03:19:39 AM
Last edit: September 03, 2019, 03:30:52 AM by Khaos77
Merited by cfbtcman (1)
 #92

https://cointelegraph.com/news/australian-coder-warns-users-of-lightning-networks-vulnerabilities

Quote
Australian software programmer and Bitcoin’s (BTC) Lightning Network coder Rusty Russell warned users that
“security issues have been found in various Lightning projects which could cause loss of funds.

Quote
On Aug. 30, Russell published a tweet urging LN nodes operators to update their software as soon as possible. According to the message, his warning concerns all versions of c-lightning prior to 0.7.1, lnd older than 0.7, and eclair up to version 0.3.



It's very surprising news, who would expect Lightning Network protocol and client which are on development phase have security issue which could cause loss of funds Shocked


In the even more surprising news ,
how many idiots claim LN will solve Bitcoin scaling problems, when they can't even solve their losing funds problem.  Cheesy

How many years and nonsense has been wasted on secondary networks propaganda
when an 8 MB blocksize would have solved the issue until 2025 or 2030.   Tongue

The year will be 2049 and LN is still in beta development.  Wink

FYI:
Segwit was activated on litecoin on May 10, 2017, and on bitcoin on 23 August, 2017.
Over 2 years for segwit and LN still can't get out of beta mode. (Lame)

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September 03, 2019, 04:01:58 AM
 #93

It's very surprising news, who would expect Lightning Network protocol and client which are on development phase have security issue which could cause loss of funds Shocked
Lol Tongue
The fact that the loss of funds "could happen" but hasn't happened yet is more surprising Tongue

And AFAIK such cases which happened because scenario we know already such as :
1. being offline and another party broadcast earlier state of the channel
2. we attempt to broadcast earlier state of the channel and another party broadcast "punishment" transaction

how many idiots claim LN will solve Bitcoin scaling problems

Only idiot claim LN will solve Bitcoin scaling problem, everyone who've tried LN or learn how it works knows it only partially solve the problem (specifically micro-transaction for user who often make transaction).

Over 2 years for segwit and LN still can't get out of beta mode. (Lame)

SegWit "beta mode" already ended the moment it's activated on 2017. The "beta mode" happened on SegNet (testnet for SegWit) about 3-4 years ago.

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September 03, 2019, 07:30:19 AM
 #94

It's very surprising news, who would expect Lightning Network protocol and client which are on development phase have security issue which could cause loss of funds Shocked
Lol Tongue
The fact that the loss of funds "could happen" but hasn't happened yet is more surprising Tongue

I believe the only reason why hackers haven't started looking for vulnerabilities in Lightning is because the rewards might be too small for the effort.

Its success, if it becomes a success with billions passing around in the network, will also make it a target in my opinion.


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September 17, 2019, 12:41:05 PM
 #95

Can I use this thread to post an actual service that accepts LN as payment? Cheesy I funded my LN-wallet again just to support this initiative: a $1 VPS server (HDD))! It's small and no doubt slow, and I LOVE that they accept LN. Contrary to on-chain Bitcoin, LN is designed for this.

If there are more real services that accept LN payment, I'd like to see them posted here. BitCryptex, are you okay with that?



I still have high hopes for LN: despite it being very small compared to many altcoins, there are already a couple dozen different wallets. My guess is they all want to be one of the first, so they have early adopter advantage once LN gets really big.



@BitCryptex: you mentioned running a node before, so I got an idea: would it be possible to use Linux command line to check payment requests before paying? I'd like to set up a promotional node that pays all LN requests posted anywhere on Bitcointalk as long as they're under a certain (low) value. I already scrape the posts, so I can get all requests within seconds. If I can pull this off with a node, I think I can get all requests paid within 10 seconds after posting.

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September 17, 2019, 12:54:31 PM
 #96

Can I use this thread to post an actual service that accepts LN as payment?

I would say "no, Dev & Tech is the wrong board". But I'm not moderating this thread


I still have high hopes for LN: despite it being very small compared to many altcoins

that makes zero sense

It would make sense if you were to compare Litecoin's LN with Bitcoin's LN. Litecoin's LN is smaller. That would make sense.

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September 17, 2019, 12:59:12 PM
 #97

If there are more real services that accept LN payment, I'd like to see them posted here. BitCryptex, are you okay with that?

I don't mind if someone posts anything LN related here from time to time. However, I might create a separate thread for that or you can do it yourself since this thread should be focused more on questions.

@BitCryptex: you mentioned running a node before, so I got an idea: would it be possible to use Linux command line to check payment requests before paying?

It would be possible. LND seems to have LookupInvoice command which returns a lot of information, including the requested value. You can also try this invoice decoder.

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September 18, 2019, 11:05:25 AM
 #98

If there are more real services that accept LN payment, I'd like to see them posted here. BitCryptex, are you okay with that?

I don't mind if someone posts anything LN related here from time to time. However, I might create a separate thread for that or you can do it yourself since this thread should be focused more on questions.
...
I would be interested in a separate board for LN if possible (but as I saw somewhere there will be no separate board unless there will be enough activity in LN related threads, but there will not be enough activity until the LN topics are easy to find, so this is a bit like catch-22...)
I know there's a search function in the forum and there's google search, but a separate board is just really different...
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September 18, 2019, 11:21:53 AM
 #99

-snip

I proposed it about 3 months ago and nothing has happened since then. A board dedicated to second layer solutions might help us not to abuse this topic and divide information into separate threads without having to worry that they will end up on the 20th page of this section. If you want to discuss it further, please reply in the previously mentioned topic.

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September 19, 2019, 07:31:16 PM
 #100

I'm confused till after greeting multiple response till as fewer look like not accurate!! which is very much irritating for the small invest.   
If possible from anyone of you please clerify me with iconic point of Lightning Network payments.

And confirm me please is it accept BitPay?
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