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The Ethereum network is currently undergoing a DoS attack

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Jeffrey Wilcke


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The Ethereum network is currently undergoing a DoS attack

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URGENT ALL MINERS: The network is under attack. The attack is a computational DDoS, ie. miners and nodes need to spend a very long time processing some blocks. This is due to the EXTCODESIZE opcode, which has a fairly low gasprice but which requires nodes to read state information from disk; the attack transactions are calling this opcode roughly 50,000 times per block. The consequence of this is that the network is greatly slowing down, but there is NO consensus failure or memory overload. We have currently identified several routes for a more sustainable medium-term fix and have developers working on implementation.

It is highly reccomended to switch to Parity mining. Use these settings:

--cache-size-db 1024 --gas-floor-target 1000000 --gasprice 50000000000

Parity mining guides:
https://docs.google.com/document/d/1j3v8bKjXQcMNNdx5Juwo3PRRCcHy8XcA6R9-0W7NCso/edit
https://github.com/ethcore/parity/wiki/Mining
If you continue to use geth, use the following settings:

--cache 1024 --targetgaslimit 1000000 --gasprice 50000000000

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Jeffrey Wilcke

Comments
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Author evily

Posted at 4:54 pm September 22, 2016.

Good luck. There is a billion dollar market cap on the line.

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    Author Frantic Bedlamite

    Posted at 5:30 pm September 22, 2016.

    Don’t you worry, it will be fixed soon. It is unlikely to affect the market. Some may dump but it will soon recover.

    Reply
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Author Thorsten Hirsch

Posted at 5:42 pm September 22, 2016.

When copy&pasting your recommended parameters I get a special character http://www.fileformat.info/info/unicode/char/2013/index.htm instead of the 2 dashes. I guess your blogging software is to blame.

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    Author David Hantson

    Posted at 5:44 pm September 22, 2016.

    lets see if we can get the correct statements in comment then:

    Parity
    –cache-size-db 1024 –gas-floor-target 1000000 –gasprice 500000000000

    Geth
    –cache 1024 –targetgaslimit 1000000 –gasprice 50000000000

    Reply
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Author Brian Swanson

Posted at 6:00 pm September 22, 2016.

So, I just pool mined my 1st ever ETH this morning via ethermine.org. Took 34 hours to mine it at 148 MH/s…and now this DoS attack has occurred. Assuming it is fine to keep my miner running or should I shut it down? I am currently at work. Thanks. -Brian

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    Author ricaesmit

    Posted at 7:47 pm September 22, 2016.

    Yes, it’s fine. Keep it running, ethermine will take care of fixing it for you.

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    Author MFWIC

    Posted at 10:29 pm September 22, 2016.

    Keep it going, not worth to switch at this point and everything just cleared up already

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Author Cyrano de Bergerac

Posted at 7:11 pm September 22, 2016.

Mine Monero, it is more profitable!

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    Author Ali Berjaoui

    Posted at 7:19 pm September 22, 2016.

    yes then go alone monero mining

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    Author Telkom Sucks

    Posted at 10:16 pm September 22, 2016.

    No. No Gui wallet and Crypnonote premine.

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    Author ultimatecurse

    Posted at 8:36 pm September 24, 2016.

    They had an article saying the hacker of bitcoin for 120k coins dumped it into monero to hide his identity since then the price has been falling along with the volume. Monero seemed to of been pumped but I do have my eye on it all check back in a year see wheres its at.

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Author Jerry Stanton

Posted at 3:08 am September 23, 2016.

I quit… ETH is going to be attacked over and over… mining ETC now

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    Author ultimatecurse

    Posted at 8:35 pm September 24, 2016.

    ETH stops the hackers ETC lets them have the coins. Don’t see how there is any value in ETC yet until big businesses are willing to trust it over ETH that forked away from the hacker.

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      Author Jerry Stanton

      Posted at 8:48 am September 27, 2016.

      ETH is the chain vulnerable to attack…as you can see by all the daily attacks happening now. ETC is the original safe chain…the DAO was attacked, never ETC.

      Reply

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