Questions tagged [dos]

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How can I find out the sender's gas limit?

Is there a way to check Sender's Gas Limit? If the sender sets too low, I will just accept whatever gas amount that he had set and return immediately without hitting the limit. I am trying to ...
0
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1answer
25 views

Why assert expends gas while require does not? (My intuition says te opposite is true)

Since assert corresponds to conditions that must never happen if the smart-contract code is correct my intuition tells me that someone calling an smart-contract that raises an assert must never be "...
1
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2answers
37 views

Dos with revert

While I was reading a guide on smart contract security (by consensys) I found this: // INSECURE contract Auction { address currentLeader; uint highestBid; function bid() payable { ...
5
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1answer
765 views

During which blocks did the DDos attack create millions of empty accounts?

This post (Why were empty accounts allowed to be on the blockchain?) discusses the Ddos attack from fall 2016. It mentions that nearly 20,000,000 account were created and then immediately deleted ...
3
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1answer
60 views

How to count empty accounts?

Is there a way to count empty accounts using geth ? I just want to be able to track current DDOS cleanup process.
1
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1answer
100 views

is ethereum a victim of new dos attack : geth 1.5 too slow

After the fork occured recently my geth 1.5 client process blocks too slowly is it another DDos attack? if not how to deal with this problem
4
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1answer
95 views

What happens if the Ethereum network is separated?

Say China's internet suddenly is separated from the rest of the World (by accident or government action). Miners in China keep mining Ethereum blocks, all other miners, as well. Then after a couple ...
1
vote
1answer
237 views

Running Wallet 0.8.6 with Parity 1.3.8 [Low # peers, Low speed] [duplicate]

Wondering why my blocks are processing so slowly. Peers ranging from 0 to 10. About 45,000 blocks behind... Processing 1 block about every 5 seconds.
3
votes
1answer
360 views

Trying to get DAO tokens back to ETH, nothing works

Is it too late or something? Have they run out of ETH to give back? I followed the steps in this question: How do I convert my The DAO tokens into ethers using the withdrawal contract after the hard ...