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    Author Topic: NXT :: descendant of Bitcoin - Updated Information  (Read 2761747 times)

    • Come-from-Beyond
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    December 24, 2013, 07:09:49 AM
     #6561
    Quote from: abctc on December 24, 2013, 06:09:01 AM
    - please do not delude yourself.  We are constantly stuck with a much lower depth then 720 blocks.

    Alice on block 23577 of longest chain, Bob on block 23400 on a shorter chain. How do u know where the fork has happened? It may happen 2000 blocks ago and Bob won't be able to jump to a legit chain without redownloading the whole blockchain.

  • achimsmile
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    December 24, 2013, 07:10:00 AM
     #6562
    Am I on the right branch?

    23578      4726268575002224579      24.12.2013 08:09:13   
    13      0 + 13      1'804 B   
    1      4648711128167189860      1395 %

  • laowai80
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    December 24, 2013, 07:11:40 AM
     #6563
    Quote from: achimsmile on December 24, 2013, 07:10:00 AM
    Am I on the right branch?

    23578      4726268575002224579      24.12.2013 08:09:13   
    13      0 + 13      1'804 B   
    1      4648711128167189860      1395 %

    yes

  • OKNXT
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    December 24, 2013, 07:12:14 AM
     #6564
    " There is insufficient memory for the Java Runtime Environment to continue."

    My public node(2G RAM, 2CPU) went down after I added hallmark.
    NTXCoin - 20%Free+75%IPO My Address: 9829879008912284294

  • abctc
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    December 24, 2013, 07:12:54 AM
     #6565
    Quote from: Come-from-Beyond on December 24, 2013, 07:04:39 AM

    Well, hallmarks would work if everyone used them. Wait for a few hours and I'll release a version with disabled hallmarks.
    - what??  May be you should release a hallmarks-only version ??  I do not whant to see a zombies in me Active peers window. I want to see (and communicate) only with hallmarked peers.

    New users just should use the other server to obtain some NXT to setup their own hallmarked node, or to continue use of public servers.
    ██████████████████████████████████████████████████
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    , the Next platform.  Magis quam Moneta (More than a Coin)

  • laowai80
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    December 24, 2013, 07:14:27 AM
     #6566
    Quote from: OKNXT on December 24, 2013, 07:12:14 AM
    " There is insufficient memory for the Java Runtime Environment to continue."

    My public node(2G RAM, 2CPU) went down after I added hallmark.



    Yes, hallmarked nodes are under DDOS.

    Try to run it like this:

    java -Xms1200m -Xmx1500m -jar start.jar

    I am not an expert on Java, play with those memory settings within your RAM limits, something could work. But DDOS sure causes a lot of issues.

  • EmoneyRu
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    December 24, 2013, 07:15:43 AM
    Last edit: December 24, 2013, 07:44:38 AM by EmoneyRu
     #6567
    I expect that it is obvious for many of you, but I'm sometimes getting fatal errors (low memory) and nxt stops.
    Here is restart manual: http://pastebin.com/580iLLkq (It is for node with nxt only. CODE KILLS ALL JAVA APPLICATIONS!)

    ! If I'm mistaken - PM me, I'll update manual & edit link in the post
    Automate your NXT VPS management!
    Earn NXT Security Coins! | Watch them!
    @nxtEmoneyRu NXT-VPP6-RFBG-WMAH-54SDX

  • abctc
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    December 24, 2013, 07:17:19 AM
     #6568
    Quote from: Come-from-Beyond on December 24, 2013, 07:09:49 AM
    Quote from: abctc on December 24, 2013, 06:09:01 AM
    - please do not delude yourself.  We are constantly stuck with a much lower depth then 720 blocks.

    Alice on block 23577 of longest chain, Bob on block 23400 on a shorter chain. How do u know where the fork has happened? It may happen 2000 blocks ago and Bob won't be able to jump to a legit chain without redownloading the whole blockchain.
    - in other words, currently the node can not find the longest chain. Despite your previous statement (lets network to find longest chain).
    ██████████████████████████████████████████████████
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    , the Next platform.  Magis quam Moneta (More than a Coin)

  • Come-from-Beyond
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    December 24, 2013, 07:21:33 AM
     #6569
    Quote from: laowai80 on December 24, 2013, 06:37:37 AM
    Quote from: 2Kool4Skewl on December 24, 2013, 06:35:02 AM
    a node hallmarked with 100 nxt and a node hallmarked with 100,000 nxt would have the same priority with peers.

    CfB, please confirm if this is true?
    If true, it shouldn't be that way, I think?
    More weight = more trust from peers approach is better?

    100.000 NXT node will attract 1000 times more traffic than 100 NXT one.

  • Come-from-Beyond
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    December 24, 2013, 07:23:00 AM
     #6570
    Quote from: abctc on December 24, 2013, 07:17:19 AM
    in other words, currently the node can not find the longest chain. Despite your previous statement (lets network to find longest chain).

    They can. Or can not. Depends on the number of blocks that passed since the fork.

  • Come-from-Beyond
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    December 24, 2013, 07:24:51 AM
     #6571
    Quote from: 2Kool4Skewl on December 24, 2013, 06:40:42 AM
    The problem with this is that heavily weighted nodes are bigger targets to attack and when they get attacked, they disrupt the network to greater extent because they are being used as the main nodes.

    Not 100% true. If heavily weighted node stops responding then he gets the red flag (disconnected) and peers ask other nodes (even non-hallmarked ones).

  • laowai80
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    December 24, 2013, 07:25:09 AM
     #6572
    Quote from: Come-from-Beyond on December 24, 2013, 07:21:33 AM
    Quote from: laowai80 on December 24, 2013, 06:37:37 AM
    Quote from: 2Kool4Skewl on December 24, 2013, 06:35:02 AM
    a node hallmarked with 100 nxt and a node hallmarked with 100,000 nxt would have the same priority with peers.

    CfB, please confirm if this is true?
    If true, it shouldn't be that way, I think?
    More weight = more trust from peers approach is better?

    100.000 NXT node will attract 1000 times more traffic than 100 NXT one.

    Maybe there shouldn't be linear dependance on the Weight, sort of diminishing dependance algorithm should be established. At least when software is in beta and there is a wider network of hallmarked nodes.

  • Come-from-Beyond
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    December 24, 2013, 07:25:27 AM
     #6573
    Quote from: Anon136 on December 24, 2013, 06:40:58 AM
    what port do i need to unblock for the client?

    *edit* not for loopback to access the gui but for incoming and outgoing connections to peers

    7874 and 7875 TCP

  • opticalcarrier
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    December 24, 2013, 07:28:48 AM
     #6574
    Quote from: Come-from-Beyond on December 24, 2013, 07:25:27 AM
    Quote from: Anon136 on December 24, 2013, 06:40:58 AM
    what port do i need to unblock for the client?

    *edit* not for loopback to access the gui but for incoming and outgoing connections to peers

    7874 and 7875 TCP

    this is news to me... why should 7875 be forwarded on a NAT router/firewall?  I thought p2p only used 7874

  • Come-from-Beyond
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    December 24, 2013, 07:30:52 AM
     #6575
    Quote from: 2Kool4Skewl on December 24, 2013, 06:51:17 AM
    It also seems that hallmarked accounts with large balances completely overpower smaller hallmarked accounts.  I don't think setting up a lot of hallmarked nodes with small balance will help much.

    Even 1 NXT hallmark helps coz a lot of people use pushThreshold and pullThreshold set to 1 which means that non-hallmarked nodes will be ignored for outbound requests.

  • Come-from-Beyond
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    December 24, 2013, 07:31:46 AM
     #6576
    Quote from: opticalcarrier on December 24, 2013, 07:28:48 AM
    this is news to me... why should 7875 be forwarded on a NAT router/firewall?  I thought p2p only used 7874

    We r planning to add ability to tunnel peer communication thru HTTPS.

  • laowai80
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    December 24, 2013, 07:32:13 AM
     #6577
    Quote from: Come-from-Beyond on December 24, 2013, 07:30:52 AM
    Quote from: 2Kool4Skewl on December 24, 2013, 06:51:17 AM
    It also seems that hallmarked accounts with large balances completely overpower smaller hallmarked accounts.  I don't think setting up a lot of hallmarked nodes with small balance will help much.

    Even 1 NXT hallmark helps coz a lot of people use pushThreshold and pullThreshold set to 1 which means that non-hallmarked nodes will be ignored for outbound requests.

    So, can those values be set to 1 by default for new versions of the software? Or is it not safe now and should be set when there are more hallmarked nodes on the network?

  • Come-from-Beyond
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    December 24, 2013, 07:35:42 AM
     #6578
    Quote from: laowai80 on December 24, 2013, 07:32:13 AM
    So, can those values be set to 1 by default for new versions of the software? Or is it not safe now and should be set when there are more hallmarked nodes on the network?

    0 is better coz most of zombies r behind NAT anyway.

  • BitCoiner2012
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    December 24, 2013, 07:44:48 AM
     #6579
    Can no longer log in to my wallet. It just hangs after clicking unlock....
    BTC Long.

  • xibeijan
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    December 24, 2013, 07:45:35 AM
     #6580
    W.r.t. project "Kharon"

    Why doesn't the bitcoin software suffer these kinds of DDOS attacks?  Can anything be learned from the bitcoin software?

    The concept of using machine learning (ANN) to avoid DDOS sounds crazy to me.
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