Category: Linux

Docker-CE on CentOS 7

Install Docker-CE (not just “docker) to get the latest version on CentOS. Update firewalld to allow host/container traffic. Restart firewalld to pick up the changes. Create a group named “docker” and add any users...

Fix pkg on FreeNAS 11.2

I upgraded to FreeNAS 11.2, and then was unable to run pkg with an error about being unable to find the local repo file. pkg: Repository local load error: access repo file(/var/db/pkg/repo-local.sqlite) failed: No...

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...

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...

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...

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...