Setup Multiple vNICs on an OpenStack-Based Ubuntu 18.04 VM

Setup Multiple vNICs on an OpenStack-Based Ubuntu 18.04 VM

Introduction If you need to add a secondary vNIC to an existing OpenStack-based Ubuntu 18.04 virtual machine (VM), here’s a handy guide. There are some ways this process can vary, but using the steps below will help you keep all your vNICs intact–even through a restoration process. Check out how below: Prerequisites Before you begin,…

Read More

Setup multiple vNICs on an OpenStack-based CentOS VM

Setup multiple vNICs on an OpenStack-based CentOS VM

Introduction Sometimes, you need an external Internet-facing floating IP (FIP) for your existing OpenStack-based CentOS VM with an internal network interface. However, since the VM is going to be in use, getting rid of the old internal-facing network interface may not be possible. This can be because data is already flowing to it, or for…

Read More

Openstack VM Rebuild with Same IP Address

Openstack VM Rebuild with Same IP AddressManual OpenStack Backups

Introduction Oops! You accidentally created an ephemeral virtual machine (VM) instead of a volume-backed one! On top of that, it’s already in production and you don’t want to start fresh or have to deal with updating host inventories. Relax! There’s a way out! It’s a somewhat painful, but recoverable, way out. Check it out below:…

Read More

AIDE Ubuntu Installation

AIDE Ubuntu Installation

Introduction AIDE is an open-source tool that allows administrators to monitor for any changes made to files and directories on a system. In this guide, we’ll be going over how to set it up and test it on Ubuntu 18.04 or 16.04. Prerequisites Before you can follow the guide below, you’re going to need either…

Read More

MediaWiki Installation on Ubuntu 18.04

MediaWiki Installation on Ubuntu 18.04

Introduction MediaWiki is a piece of software that helps organize and collect knowledge on a specific topic and put it all into one place. It is great for documentation purposes and is easy to set up. In this guide, we’ll go over how to install it on Ubuntu. If you need some software that allows…

Read More

How to Update LSI9300-8i SAS3008 HBA Controller BIOS and Firmware

How to Update LSI9300-8i SAS3008 HBA Controller BIOS and Firmware

Introduction Reference example: LSI9300-8i SAS3008 Sometimes, the BIOS and firmware on your servers’ HBA controllers need to be updated. This is a relatively simple process, but be sure to do it carefully according to the steps below. These steps can be used for the LSI9300-8i SAS3008 series of HBA controllers. NOTE: It is genuinely possible…

Read More

Disabling Auto-Updates on Ubuntu

Disabling Auto-Updates on Ubuntu

Introduction When software auto-updates without warning, it can really throw you off. New configurations and updates to features you’re used to can slow you down as you try to relearn and navigate everything. To prevent this, we wanted to share how you can disable these auto-updates for Ubuntu 16.04, 18.04, and 20.04. Prerequisites Before you…

Read More

Signal Tips and Tricks

Signal Tips and Tricks

Introduction If there was anything we learned while we were all quarantining at home, it’s that all the data we have in our devices might not be as safe as we’d like. Anything not made completely and totally private and encrypted is subject to interception or scraping, indefinite storage, analysis, use, and misuse. This is…

Read More

Creating and Modifying Grafana Dashboards

Creating and Modifying Grafana Dashboards

Introduction A short tutorial that walks you through the basics of creating and modifying a Grafana dashboard. Prerequisites If you haven’t installed Grafana yet, make sure that you have a computer that can run it (255MB and 1 CPU), a supported browser like Safari or Chrome, and a supported database to store the info like…

Read More

Upgrading Python 2 to 3

Upgrading Python 2 to 3

Introduction Keeping up-to-date on your code can be complicated, especially if it’s something you aren’t super familiar with. However, the upgrading process of python2 to python3 is pretty straightforward and easy to do. Ready? Then let’s jump right into upgrading Python 2 to 3. Prerequisites First off, make sure your ubuntu version is up to…

Read More