[ANN][XRB]Cryptocurrency's killer app: RaiBlocks micropayments

[cryptosheeple]

Hi there,

Newby question, please. I have installed a headless node on an Ubuntu 16.04
At node start I have 4 errors strings:
"sendto: Operation not permitted
sendto: Operation not permitted
sendto: Operation not permitted
sendto: Operation not permitted"

I have opened UDP port for peering in the firewall with no result:
#nano In/Out
/sbin/iptables -t filter -A OUTPUT -p udp --dport 7075 -j ACCEPT
/sbin/iptables -t filter -A INPUT -p udp --dport 7075 -j ACCEPT

What am I missing? Thank you.

Are you directing packets to a table called filter? Any other rules you have got in place?

Maybe try this instead:

Code:

/sbin/iptables -I INPUT -p udp --dport 7075 -j ACCEPT
/sbin/iptables -I OUTPUT -p udp --dport 7075 -j ACCEPT

Yes, it is part of a larger firewall script where I close "everything" then re-open one by one each port I need (I have others software running on this server). Here is the beginning of the script:

Code:

#!/bin/sh

# Empty rules
/sbin/iptables -t filter -F

# Empty personnal rule
/sbin/iptables -t filter -X

# Forbid everything
/sbin/iptables -t filter -P INPUT DROP
/sbin/iptables -t filter -P FORWARD DROP
/sbin/iptables -t filter -P OUTPUT DROP

# Preserve established connexion
/sbin/iptables -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
/sbin/iptables -A OUTPUT -m state --state RELATED,ESTABLISHED -j ACCEPT

# Allow loopback
/sbin/iptables -t filter -A INPUT -i lo -j ACCEPT
/sbin/iptables -t filter -A OUTPUT -o lo -j ACCEPT 

Then I open the ports I need according to https://github.com/nanocurrency/raiblocks/wiki/Network-usage

Code:

#nano In/Out
/sbin/iptables -t filter -A OUTPUT -p udp --dport 7075 -j ACCEPT
/sbin/iptables -t filter -A INPUT -p udp --dport 7075 -j ACCEPT
/sbin/iptables -t filter -A OUTPUT -p tcp --dport 7075 -j ACCEPT
/sbin/iptables -t filter -A INPUT -p tcp --dport 7075 -j ACCEPT

The -t filter comes from the way the script starts and does works well will all other programs, I have been using this script for years. I suspect this is related to the UDP nature of the protocol but I have no idea.

Anyone out there has an iptable working script on Ubuntu ?

I also have in my logs:

Code:

[2018-04-04 12:14:39.686591]: Error broadcasting confirm_ack to [::ffff:138.68.183.123]:1964: Operation not permitted
[2018-04-04 12:14:39.687108]: Error broadcasting confirm_ack to [::ffff:51.255.200.174]:6063: Operation not permitted
[2018-04-04 12:14:39.687115]: Error broadcasting confirm_ack to [::ffff:5.189.128.113]:12000: Operation not permitted
[2018-04-04 12:14:39.687160]: Error broadcasting confirm_ack to [::ffff:186.155.30.146]:52921: Operation not permitted
[2018-04-04 12:14:39.687176]: Error broadcasting confirm_ack to [::ffff:167.99.254.89]:1024: Operation not permitted
[2018-04-04 12:14:39.687257]: Error broadcasting confirm_ack to [::ffff:186.155.30.146]:62212: Operation not permitted

The output ports seems to be non-7075, maybe try using sport 7075 instead?

[themathiasmiller]

This is fact when price of any legit project are falling people don't touch it. We will see lot of people shouting moon and showing interest in buying when the price will start to increase again. If project is real and development is going on through thick and thick situations means buying time is at low. Nano works smoothly who has used it knows well.

Well the most clever ones will always get involved prior every hype. The projects works well and everyone will realize that

I couldn't agree more with what you said here, clever ones usually get involved before every hype that's why at the end of the day they're usually the one's that's very profitable. I'm pretty sure now while the market is still bear, a lot of people are collecting some nanos, it may not seem obvious due to the current price of bitcoin but I'm sure there are a number of people buying at the current market. For me though nano's technology is revolutionary and the dev's just keeps on improving its technology. Looking at the charts I have a good feeling that nano's price might skyrocket once this bear market ends.

[Traderbtcc]

This is fact when price of any legit project are falling people don't touch it. We will see lot of people shouting moon and showing interest in buying when the price will start to increase again. If project is real and development is going on through thick and thick situations means buying time is at low. Nano works smoothly who has used it knows well.

That's how it is. Most people are just here for the moons and lambos and not for the technology. They're better off chasing vaporwares and shilling them to unsuspecting community noobs than supporting projects who makes the difference. Nano is a top project bur everyone is after a 10x or 20x ico project with little to no development in place.

[ByteFan]

The output ports seems to be non-7075, maybe try using sport 7075 instead?

Thank you for your answer.

I have done:

Code:

/sbin/iptables -t filter -A OUTPUT -p udp --dport 7075 -j ACCEPT
/sbin/iptables -t filter -A INPUT -p udp --dport 7075 -j ACCEPT
/sbin/iptables -t filter -A OUTPUT -p tcp --dport 7075 -j ACCEPT
/sbin/iptables -t filter -A INPUT -p tcp --dport 7075 -j ACCEPT
/sbin/iptables -t filter -A OUTPUT -p udp --sport 7075 -j ACCEPT
/sbin/iptables -t filter -A INPUT -p udp --sport 7075 -j ACCEPT
/sbin/iptables -t filter -A OUTPUT -p tcp --sport 7075 -j ACCEPT
/sbin/iptables -t filter -A INPUT -p tcp --sport 7075 -j ACCEPT

But it is the same

[Neversettle]

This is fact when price of any legit project are falling people don't touch it. We will see lot of people shouting moon and showing interest in buying when the price will start to increase again. If project is real and development is going on through thick and thick situations means buying time is at low. Nano works smoothly who has used it knows well.

That's how it is. Most people are just here for the moons and lambos and not for the technology. They're better off chasing vaporwares and shilling them to unsuspecting community noobs than supporting projects who makes the difference. Nano is a top project bur everyone is after a 10x or 20x ico project with little to no development in place.

it´s always like that. And most Fudder just joined the project at ATH and now are in a loss. that´s not the Projects fault

[cryptosheeple]

The output ports seems to be non-7075, maybe try using sport 7075 instead?

Thank you for your answer.

I have done:

Code:

/sbin/iptables -t filter -A OUTPUT -p udp --dport 7075 -j ACCEPT
/sbin/iptables -t filter -A INPUT -p udp --dport 7075 -j ACCEPT
/sbin/iptables -t filter -A OUTPUT -p tcp --dport 7075 -j ACCEPT
/sbin/iptables -t filter -A INPUT -p tcp --dport 7075 -j ACCEPT
/sbin/iptables -t filter -A OUTPUT -p udp --sport 7075 -j ACCEPT
/sbin/iptables -t filter -A INPUT -p udp --sport 7075 -j ACCEPT
/sbin/iptables -t filter -A OUTPUT -p tcp --sport 7075 -j ACCEPT
/sbin/iptables -t filter -A INPUT -p tcp --sport 7075 -j ACCEPT

But it is the same

That sucks. Last option would be to check your ip6tables for rules and to also tcpdump the packets to see where they're goin.

[ByteFan]

The output ports seems to be non-7075, maybe try using sport 7075 instead?

Thank you for your answer.

I have done:

Code:

/sbin/iptables -t filter -A OUTPUT -p udp --dport 7075 -j ACCEPT
/sbin/iptables -t filter -A INPUT -p udp --dport 7075 -j ACCEPT
/sbin/iptables -t filter -A OUTPUT -p tcp --dport 7075 -j ACCEPT
/sbin/iptables -t filter -A INPUT -p tcp --dport 7075 -j ACCEPT
/sbin/iptables -t filter -A OUTPUT -p udp --sport 7075 -j ACCEPT
/sbin/iptables -t filter -A INPUT -p udp --sport 7075 -j ACCEPT
/sbin/iptables -t filter -A OUTPUT -p tcp --sport 7075 -j ACCEPT
/sbin/iptables -t filter -A INPUT -p tcp --sport 7075 -j ACCEPT

But it is the same

That sucks. Last option would be to check your ip6tables for rules and to also tcpdump the packets to see where they're goin.

Good idea ip6tables ! but does not work either. :-(

Fun that nobody seems running a node on Ubuntu with a firewall

I have the feeling (but not enough skills to solve) it due to the way the ports are handled with UDP (it reminds me the trouble you may have will firewall and ftp).

Code:

/sbin/iptables -t filter -A OUTPUT -p udp --dport 7075 -j ACCEPT
/sbin/iptables -t filter -A INPUT -p udp --dport 7075 -j ACCEPT
/sbin/iptables -t filter -A OUTPUT -p tcp --dport 7075 -j ACCEPT
/sbin/iptables -t filter -A INPUT -p tcp --dport 7075 -j ACCEPT

/sbin/iptables -t filter -A OUTPUT -p udp --sport 7075 -j ACCEPT
/sbin/iptables -t filter -A INPUT -p udp --sport 7075 -j ACCEPT
/sbin/iptables -t filter -A OUTPUT -p tcp --sport 7075 -j ACCEPT
/sbin/iptables -t filter -A INPUT -p tcp --sport 7075 -j ACCEPT

/sbin/ip6tables -t filter -A OUTPUT -p udp --dport 7075 -j ACCEPT
/sbin/ip6tables -t filter -A INPUT -p udp --dport 7075 -j ACCEPT
/sbin/ip6tables -t filter -A OUTPUT -p tcp --dport 7075 -j ACCEPT
/sbin/ip6tables -t filter -A INPUT -p tcp --dport 7075 -j ACCEPT

/sbin/ip6tables -t filter -A OUTPUT -p udp --sport 7075 -j ACCEPT
/sbin/ip6tables -t filter -A INPUT -p udp --sport 7075 -j ACCEPT
/sbin/ip6tables -t filter -A OUTPUT -p tcp --sport 7075 -j ACCEPT
/sbin/ip6tables -t filter -A INPUT -p tcp --sport 7075 -j ACCEPT

Does not solve the problem

[Dmitry-LSG]

Good afternoon. Need help with the NANO transaction. Sent NANO from Kucoin exchange to Binace they did not come. How can I be helped?

https://raiblocks.net/block/index.php?h=B05AD0867B24E428A8291F624D5D5D2C96C57B797D471521E31EDE05C680CA2D

[Zontop]

It has been few months since the rebranding took place but the title of the thread remained unchanged. Although OP isn't active on daily basis but periodically he appears on forum. I will suggest to edit the title and along with old a few words about Nano can be added for wider awareness for new people to have access to project without efforts.

[CryptKeeper]

It has been few months since the rebranding took place but the title of the thread remained unchanged. Although OP isn't active on daily basis but periodically he appears on forum. I will suggest to edit the title and along with old a few words about Nano can be added for wider awareness for new people to have access to project without efforts.

[kamiyama]

Apr 7
https://medium.com/@nanocurrency/upcoming-transition-to-universal-blocks-cbbaca58e466

Upcoming Transition to Universal Blocks
The release of Nano Node version 11 included support for Universal Blocks to be turned on via a “canary block”. In preparation for the canary block, the Core team asks all users operating default Nano nodes to upgrade to version 11. In certain cases where developers are using block_create, the block type will need to be changed from the existing four block types to state_block. If users have any questions please contact us in the #support channel on our official discord server.

Version 11.2 can be found here or can be run using our official Docker repo at nanocurrency/nano.

The current timeline for the canary block to be launched is on April 12th, 2018.

How the Nano Protocol is Upgraded
Nano, like any other cryptocurrency, is a protocol, an agreed upon standard that allows computers to communicate with each other and agree on data.

Bitcoin uses a blockchain as its public ledger database. By design, the blockchain is synchronous, where batches of transactions are appended to the Bitcoin blockchain in blocks that the entire network agrees on. Data (transactions) can only be added to the blockchain in discrete steps.

Nano uses a block-lattice, a directed acyclic graph (DAG), as it’s public ledger database. By design, the Nano block-lattice is asynchronous, where transactions can be added independent of other transactions occurring on the network.

All nodes on a cryptocurrency network upgrading their protocol at the same time is crucial to the consensus and consistency in the network. Blockchains accomplish this by programming into the node software an upgrade block-height. At the x’th block in the blockchain, all nodes utilizing the new software will switch over from the old protocol to the upgraded protocol.

Since Nano doesn’t have an exact blockheight that all nodes can agree upon, we need a different signaling method for all nodes to simultaneously upgrade their protocol.

The method we use is to send out a canary transaction. A canary transaction is no different than any other send/receive/change/open transaction; for the sake of this article, lets assume that the canary block is a 0 Nano send from a certain account chain in control by Nano Core to itself. This transaction is already formed and stored away, unbroadcasted, and waiting to be utilized. All nodes that are running the upgraded software will be listening for the hash, the digital fingerprint, of this block as the signal to switch on the upgraded protocol.

During the upcoming days the Core team will give more details on the upgrade and will be available to answer any questions on Reddit or Discord. Thank you for your continued support!

[kamiyama]

Good afternoon. Need help with the NANO transaction. Sent NANO from Kucoin exchange to Binace they did not come. How can I be helped?

https://raiblocks.net/block/index.php?h=B05AD0867B24E428A8291F624D5D5D2C96C57B797D471521E31EDE05C680CA2D

please contact Binance support

[cryptosheeple]

Does not solve the problem

I'll have a try at setting a node up and see how I go.

[ByteFan]

Does not solve the problem

I'll have a try at setting a node up and see how I go.

wow ! [thumb]

[Cryptointellection]

Hello guys i am new into NANO coin

[lidonglan1012]

RaiBlocks is a valuable currency in the field of block chain payment. I firmly believe in the development of this coin.

[Sam123]

Why XRB/Nano price is very low. Is it because of the hack that happen few weeks back or is it BTC adjustment that currently is happening.

[Lucius]

Why XRB/Nano price is very low. Is it because of the hack that happen few weeks back or is it BTC adjustment that currently is happening.

The primary reason is in BTC price,just check all others altcoins and you will see same thing-when BTC price is going down,almost all other coins follow same path,and Nano it's no different in that regard.Hack is made a lot of damage to Nano also,many small investors lost coins and trade volume is go down.

I hope price will go up when community get fully functional desktop(light wallet),mobile wallets&hardware wallet(Ledger).All that in combination with BTC price increase should make a difference in the positive direction.

[kamiyama]

Black Block Research (BBR) Interviews Nano Team: Let us know your questions!
https://www.reddit.com/r/nanocurrency/comments/8auj12/black_block_research_bbr_interviews_nano_team_let/

We're happy to announce that we're doing quarterly coverage on Nano as an independent third party. The Nano team has agreed to answer our questions through an interview with us.

As the first step of our coverage, we are seeking to gather as many of the community's questions as we can. All questions are good: tech, bus dev, progress on roadmap, alternatives, etc. Please fill out the survey here: https://www.surveymonkey.com/r/NANOBBR. We will consider questions submitted for the next week (April 15).

After the submissions, we'll prepare a questionnaire and put it to the Nano team. Once our questions are answered, we will draft and publish our report and share it publicly with the Nano community (including an annex with the questions and answers we receive from the Nano team).

For those who don't know us, Black Block Research is an independent crypto research firm that provides insights on cryptocurrencies. We published a report on Nano 2 months ago which you can find here: https://www.reddit.com/r/nanocurrency/comments/7wze5e/black_block_research_issues_a_buy_rating_for_nano/

More info on us can be found on our site: https://www.blackblockresearch.com

[Destiner]

I did my research about Nano and took notes in the way. Based on my notes, I wrote a short (3-5 min) review. Might be helpful for newcomers who want to understand the Nano a bit more.
https://longcaller.com/coin/nano.html