Linked Questions
15 questions linked to/from How to reduce the chances of your Ethereum wallet getting hacked?
44
votes
3answers
38k views
How to call a contract method using the eth_call JSON-RPC API
Ok, so I'm trying to call a contract method using the methods provided by the Ethereum JSON RPC interface. The JSON RPC is running on an Ubuntu machine. Unfortunately, I can't really get a result back ...
4
votes
3answers
7k views
Geth stopped syncing after a while
Running geth on clean ubuntu 14.04 x64
After running geth --fast syncing stoppes on some point, like that:
I0321 11:31:39.971284 core/blockchain.go:959] imported 256 block(s) (0 queued 0 ignored) ...
7
votes
2answers
4k views
Do I have to unlock my account in geth to call a web3.eth.sign() in JavaScript?
I have:
A geth account
Access to web3 API
I want to:
Invoke the function, web3.eth.sign(coinbase, sha)
If I put this in a javascript file sign.js, and I call node.js, will it sign my message? Or ...
5
votes
2answers
2k views
Is it possible to unlock a geth wallet through JSON RPC? [duplicate]
I'm currently developing an application on top of Ethereum's JSON RPC. I would like to be able to unlock and lock the wallet as needed, similar to how Bitcoin does it. However, it seems that at the ...
5
votes
2answers
4k views
Error: account is locked. Attempting to send ether from one account to another, Local Node on Private Blockchain
What is the correct process to unlock an account? I was able to do this successfully in the geth console(see this post for more details on what I've tried Why does account show 0 balance, after ...
2
votes
2answers
463 views
How can i publish smart contracts accessible from all client
I've developed a simple smart contracts with browser solidity:
pragma solidity ^0.4.9;
contract demo {
string public name="Pietro";
function changeName(string _newName){
name=_newName;
...
1
vote
2answers
259 views
How to safely node.js script which uses geth, without risking external actors accessing it with --rpc?
So if I want to write a script which uses geth and web3, the first that comes to mind is starting geth with --rpc enabled.
Will this risk the wallet being accessed from outside?
Is there a way of ...
35
votes
1answer
26k views
What are ipc and rpc?
The question is quite simple , I have only basic Idea of RPC but none of IPC.
AFAIK, if I connect to ethereum node via ipc then the my geth should be running on same machine. and If I connect via ...
15
votes
1answer
22k views
How can I reverse or cancel a transaction or recover lost ethers?
Transactions (using a smart contract like a token or sending ether), by design, are immutable on the blockchain. What methods can be used to (more or less) unilaterally reverse a transaction made by ...
7
votes
1answer
571 views
How can I list The DAO proposals and vote from the command line?
Are there any command line tools to vote on The DAO proposals?
I would like to:
List the open proposals
Check whether I have already voted on these proposals
Check my voting history
Vote on the ...
2
votes
1answer
266 views
Can I access my account using some http request?
I am accessing my accounts and everything using Ethereum Wallet (Mist) but I was wondering is there any possible way to access my account using some http request?
1
vote
1answer
178 views
Port requirements for a Light-Node?
For a light client (geth --light or parity --light) running the light client protocol what are the port requirements?
Incoming: Does a light client expose a port where he accepts incoming ...
1
vote
1answer
482 views
Geth account unlocked for 2 seconds
My question relates to a older question on this stackexchange.
Details
Patrick used the Ethereum Wallet to transfer 1 ether to test out buying TheDAO tokens on his mining computer. When (so far it ...
1
vote
1answer
1k views
Is it possible to hack an ethereum account? [duplicate]
I want to know if is it possible to hack an Ethereum account?
1
vote
0answers
118 views
Unlock account on Ethereum client, or sign every transaction sent it to Ethereum client?
I have a contract which needs to be updated occasionally.
For this purpose, I set up an Ethereum client, namely, a Parity node.
At this point, I see several ways of carrying out the specified task:
...