Justin Silver

Justin Silver Blog

Linux

Wildcard SSL Certs: Let’s Encrypt & Cloudflare

My servers have been using free Let’s Encrypt SSL certificates for some time now, but I was really excited to hear about support for wildcard SSL certificates in 2018. Wildcards are now available thus...

Cryptocurrency

Syscoin + ZMQ + Node.js = Realtime Blockchain Updates!

Realtime Updates from the Syscoin Blockchain You can use the ZMQ topic message queues in Syscoin to receive realtime updates for your application. Using in conjunction with syscoin-core to blockchain-enable your applications in no...

Cryptocurrency

Syscoin + Node.js = Blockchain Apps!

Getting Started You will need to have syscoind or Syscoin Core Qt running on your system and have node/npm installed. If you don’t have Node.js I recommend installing it via nvm. Syscoin Configuration First...

Cryptocurrency

Syscoin 3 Alias Creation

Or, How I Learned To Stop Worrying and Love the Command Line Before we start – please read this post fully! It will only take a few minutes, and you will feel much more...

Linux

MongoDB Clustering for CentOS 7

A quick guide to installing a MongoDB cluster on CentOS 7 hosts. Network Configuration Install MongoDB First make sure the system is up to date and install the MongoDB binaries via the Mongo yum...

Cryptocurrency / Linux / OSX

Syscoin Core 3.0 Build Scripts

Build Scripts Use the following commands to compile Syscoin 3.0 on a variety of operating systems. These scripts will prepare your system with the proper build tools and install the necessary libraries and source...

Cryptocurrency / Linux

Syscoin Masternode Hot Wallet to Syscoin-Qt

Oh no! If you set up your Syscoin masternode with a hot wallet (by importing a private key for your collateral transaction) then you have put your syscoins at great risk! A flaw in...