Questions tagged [connections]

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6
votes
1answer
2k views

How can I create connected multiple blockchains?

I want to create multiple private blockchains over Ethereum testnet, which need to be somehow connected. Is it possible to have a node on private blockchain that is connected to the another node on ...
0
votes
1answer
796 views

Error: The data field must be HEX encoded data

I am trying to make a simple dApp by using a tutorial. I am using the following command ; npm install ganache-cli web3 so that we can use web3 to get fake ethereum nodes/accounts by connecting it ...
15
votes
5answers
2k views

How to prevent being blacklisted for running an ethereum client?

I'm running a dedicated server at one of the biggest hosters in Germany. This server serves the network with an Ethereum supernode, running parity 1.1.0 in archive pruning mode and allows up to 1024 ...
3
votes
1answer
178 views

What is the username / node ID in an enode URL?

Looking at https://github.com/ethereum/wiki/wiki/enode-url-format and https://github.com/ethereum/go-ethereum/wiki/Connecting-to-the-network I can see that the enode URL includes some information ...
1
vote
1answer
137 views

Web3 Empty Object Server Side in Meteor

Created new --bare Meteor project (release 1.8). Used meteor npm install --save web3 to add web3 to the project from npmjs.org. In code server.js use: Web3 = require('web3') console.log(Web3) // ...
1
vote
2answers
824 views

Nodes from two different networks not operable on a private blockchain

This is how my setting looks: H2 and H4 are on separate networks. They have private IPs and not routable from outside the network. How do I make these two systems as peers so that they operate on the ...
6
votes
1answer
702 views

peers keep connects and disconnects into private Ethereum blockchain

I have two servers that are connected into local private ethereum blockchain successfully and they do mining as well. After few minutes one of them disconnects and after that it re-connects again and ...
4
votes
1answer
392 views

Connecting to an ethereum node from meteor server side

I get the error TypeError: XMLHttpRequest is not a function when I try to connect to a node on the server side of my meteor application. The error is caused by meteor using the meteor HTTP package ...
3
votes
0answers
201 views

How do you connect to a node from the server side of a meteor app

This is the command I am using to run the node (a private testnet) geth --networkid 420 --nodiscover --rpc --rpcaddr "0.0.0.0" --rpcport 8545 --rpcapi="db,eth,net,web3,personal,web3" --rpccorsdomain "...
2
votes
0answers
634 views

Connect to node via IPC

As per my knowledge, RPC connection to a node is quite unsafe. so the alternative is connecting to a node via IPC. But how to connect to node via IPC? I have used web3 for connecting to node via RPC ...