RabbitMQ and Windows – Enabling web interface

After installing RabbitMQ search for RabbitMQ Command Prompt and open it with admin privilege like as shown below.   The management plugin is included in the RabbitMQ distribution. Like any other plugin, it must be enabled before it can be used. That’s done using rabbitmq-plugins command:

  Now verify via browser in URL http://localhost:15672/    

Removing Signer Node from Private Ethereum Network

In previous post we added second signer node to our private blockchain Adding Signer Node to Private Ethereum Network This time we will remove first node from blockchain. Those two steps can be considered as blockchain migration from one server to another. It is quite simple, execute in geth  console for both nodes command

The… Read More »

Adding Another Node to Private Ethereum Network

This article is a continuation of the article Private Proof-of-Authority Ethereum Network on Synology NAS Here we describe how to add another node to our private Ethereum development blockchain. Keep in mind that it is private and development platform, so for public node all security requirements may not be met. In previous article we already did… Read More »

Building OpenZeppelin Contracts with Visual Studio Code

Prerequisites : Visual Studio Code – https://code.visualstudio.com/ Solidity support for Visual Studio code – https://marketplace.visualstudio.com/items?itemName=JuanBlanco.solidity OpenZeppelin Contracts – https://github.com/OpenZeppelin/openzeppelin-contracts This article does not claim to be a complete and perfect solution, but this is how it worked for me and might be starting point for you. Install Visual Studio Code, install Solidity extenstion. Extract from… Read More »

Private Proof-of-Authority Ethereum Network on Synology NAS

1. Download Ubuntu installation image and create virtual machine on NAS I started with Ubuntu server version. How to install Ubuntu on Synology 2. Optional – install Xrdp Server (Remote Desktop) on Ubuntu 20.04 https://linuxize.com/post/how-to-install-xrdp-on-ubuntu-20-04/ As my main development computers are Windows-based I preferred to have remote desktop access to Ubuntu server. For some reasons… Read More »

Issue with System.Net.Http 4.2.0.0 not found

Recently I got next error when executing application on remote server:

  On local PC all worked fine. Same version of .net framework was installed on local development pc and remote. There are huge amount of posts about this topic in internet. The root issue of issue was found out soon – full framework… Read More »

How to Fix the Collation and Character Set of a MySQL Database

Recently I came across with issue where migrating website from one hosting to another resulted on text encoding issues. Site was very old and lot of time had passed, so on new server all texts coming from database had cryptic signs instead of Nordic characters. All you can find below is from article on page https://confluence.atlassian.com/kb/how-to-fix-the-collation-and-character-set-of-a-mysql-database-744326173.html… Read More »