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Renewing Ovirt Engine certificates before they expire

In Red Hat Virtualization earlier than version 4.4 SP1, all certificates followed a 398 day lifetime. Starting in Red Hat Virtualization version 4.4 SP1, the self-signed internal certificates between hypervisors and the Manager follow a five year lifetime. Certificates visible to web browsers still follow the standard 398 day lifetime and must be renewed once […]

Adding a New Disk Drive to a CentOS 6 / 7 System

Finding the New Hard Drive in CentOS # ls /dev/sd* /dev/sda /dev/sda1 /dev/sda2 /dev/sdb Creating Linux Partitions # su – # fdisk /dev/sdb Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel Building a new DOS disklabel with disk identifier 0xd1082b01. Changes will remain in memory only, until you decide […]

Migrating from GitLab to GitHub (Without the Baggage of Large Files)

When working with large data or heavy dependencies, it’s not uncommon for repositories to exceed GitHub’s 100MB file size limit. If you’re migrating from GitLab to GitHub and encounter this issue, you’ll need to clean your repo history and strip out large files before pushing. In this post, I’ll walk you through how to successfully […]