12 votes

How does the Microsoft Azure Ethereum Blockchain as a Service differ from the platform offered by Eris Industries?

Disclosure, I'm the CEO of Eris Industries The major difference between the Consensys offering and the Eris Industries offerings on Azure are two fold. At Eris Industries we are focused as @5chdn ...
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11 votes
Accepted

How can I get a private geth instance on Azure to interact with the public blockchain?

The bridge between multiple blockchains are the private and public key pairs. The keys are what enable you to sign transactions. In the case of Ethereum blockchains, the same private key can sign a ...
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8 votes
Accepted

How does the Microsoft Azure Ethereum Blockchain as a Service differ from the platform offered by Eris Industries?

Microsoft Azure offers a 1-click cloud installation of a full ethereum environment containing a client aswell as the ether.camp integrated developer environment and the blockapps private blockchain ...
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  • 31.3k
6 votes

How can I get a private geth instance on Azure to interact with the public blockchain?

When you run geth and specify a custom genesis block, you can have your own private blockchain. (Say for a test environment.) Just omit --genesis and --networkid and it will use the live/production ...
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  • 5,798
4 votes
Accepted

How does etherchain access and query Ethereum blockchain transaction data?

What you are looking for is a open node. I'm not sure where you could find one, however there probably is a open node somewhere. You could scrape etherchain for data, or connect it to for example ...
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  • 312
3 votes
Accepted

Microsoft Coco Framework, how does it speed up transaction?

You are somewhat right. Coco is mainly focusing on improving the performance/privacy of consortium blockchain (e.g. Hyperledger, Corda) while POW is for public blockchain (e.g. BTC, ETH). The ...
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  • 46
3 votes

How does etherchain access and query Ethereum blockchain transaction data?

I believe Etherchain is processing the blockchain as it evolves, and they're creating their own database which is far better at searching and reporting. Anybody can do this, you just need to read ...
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3 votes
Accepted

Can STRATO be utilized as an Ethereum client?

STRATO uses an Ethereum client written in Haskell. Open source https://github.com/blockapps/ethereum-vm is forked from a repo which says: This package provides a tool written in Haskell to allow ...
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  • 77.9k
3 votes

Invalid sender error in MetaMask with private network in Azure ethereum BaaS

It seems that Azure is deploying an old, somewhat outdated Ethereum client that does not implement EIP 155 replay protections, which slightly changes the signature format in a way that has a nice ...
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  • 2,602
3 votes

Azure Ethereum cannot connect

make sure you have attached the network interface rules for port 8545 under inbound port rules check your ubuntu how did you run your geth console- mine is some thing like this as shown below geth -...
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2 votes

Truffle - Migrate Contract to a private network in Azure

I had this same issue I managed to get this running by geth 'OtherOptions' --unlock 0 Which will unlock the coinbase for us. PS: This not a good practice. You can also unlock the coinbase using ...
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  • 9,243
2 votes

How to connect to the Private BlockChain in Azure consortium

Are you trying to connect with code or with a Geth node? If you just want to connect use: $ geth attach http://[ipaddress]:8545 If you want to add a node to the Azure based blockchain you will ...
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2 votes

RPC connection to private net using MetaMask works, but using geth, mist or solidity browser doesn´t

The problem is that the Azure marketplace is hosting an old version of Geth that does not support EIP 155 replay protection, which the latest version of MetaMask does. The solutions are: Use a ...
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  • 2,602
2 votes
Accepted

Web3 retrieving latest transactions

UPDATE: I found this example on Github, someone found a way to scan blocks for transactions asynchronously! If you have a decent CPU, you can hit 300 blocks/second. It is very well documented as well....
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2 votes

Purchase real Ether and add to base/default account

Ethereum Consortium Network is a private blockchain network and it does nothing with actual Ethereum. Microsoft provide the blockchain as BaaS on Azure platform. BaaS - Backend-as-a-Service
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  • 875
2 votes

Miners stop working in Azure consortium blockchain

I have ran into same issue more than once. Stopping all the miners and starting them again does the trick. But I do not know why this happens!
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2 votes

Ethereum Node on Azure Virtual Machine (windows) remote access

Go to the loadbalancer --> Inbound NAT Rules and add a New rule pointing to your VM and teh port as 8545
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  • 21
1 vote
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Deploying DAPP on cloud using docker

You need to deploy your DAPP's smart contracts on a test etherium blockchain first and then afterwards you can deploy your DAPP on aws. Docker Link : https://github.com/getamis/istanbul-tools More ...
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  • 188
1 vote
Accepted

Have someone tried to implement a private ethereum network based on BaaS of Microsoft & azure servers or some other companies?

If you want to create a private chain then you don't need any blockchain as a service solutions. You can follow the documentation here from Ethereum and stand up a private ethereum network relatively ...
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  • 1,245
1 vote

authentication needed: password or unlock

i recommend this solution personal.unlockAccount(Address, Password, 0) 0 is unlock no time limit
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1 vote

authentication needed: password or unlock

When sending a transaction, you don't "unlock personal", you unlock the account that sends the transaction. In this case, you could do: return web3.personal.unlockAccount(ADDRESS, PASSWORD, TIME (if ...
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1 vote

Miners stop working in Azure consortium blockchain

I had similiar problem. And restarting the vm didn't worked. My solution was to reimage the VM that wasn't working. But I suppose redeploying can do the trick also. Because I just reimage one of the ...
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  • 141
1 vote

Truffle - Migrate Contract to a private network in Azure

you need to unlock your coin base to do so use personal.unlockAccount(eth.coinbase,"your_pass_phrase",time_in_miliseconds) if you specify time 0(zero) then the account was unlocked permanently, ...
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1 vote

Deploy Ethereum SmartContract on Azure

Not specific to Azure. In geth, you can > web3.eth.blockNumber xxxx > If this number is not rising, no one is mining. On one of your well-connected nodes, make sure web.3eth.coinbase is ...
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  • 50.6k
1 vote

Deploying and interacting contract with Azure consortium blockchain with their transaction receipt not returning from blockchain

Turns out it was gas price too low (bigger than the largest integer). Then it starts mining an empty contract, that turned out to be gas limit too low.
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1 vote

Ethereum Consortium Blockchain Designed to be Proof of Concept or Production Ready

I finally spoke to a blockchain engineer at Microsoft who explained to me that the Azure template for Ethereum can in fact be used for setting up production ready blockchains. If you are wanting to ...
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  • 327
1 vote
Accepted

Transactions not processed (Ethereum Network in Azure)

I added a second miner and now it works. Bug or is this on purpose?
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1 vote
Accepted

Deployment of Smart Contracts with Azure Ethereum Consortium does not work

There is now a solution (thanks to colleague who helped me figuring this out :) but it is somehow unsatisfying as I don't know exactly why it works now and not before. My colleague used a different ...
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1 vote

I don't see any environment when deployed ethereum on Azure

I was able to start a private blockchain on Azure by using the "Ethereum Consortium Leader". Once the resource is deployed you can use the click on the "Resources " tile that now displays. A new ...
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  • 111
1 vote

Azure Ethereum cannot connect

Did you create your environment from a consortium leader template? Instead of running the console on your local terminal, run it on the remote machine. You'll find the details of how to connect in ...
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