Surfing the Cloud (Page 3)

Surfing the Cloud

The Ephemeral Immutable App

The Ephemeral Immutable App

Historically we have built our servers to fit the shape of our applications. There is an unending way to install and configure a running application, to size the memory and disk, and so forth. This has changed dramatically with the advent of simple to use containers. Instead, the world is

Usable OpenVPN in CentOS/Fedora/RHEL

Guide for easy use of OpenVPN in RHEL7 family of Linux: Create a wrapper script vpnstart: #!/bin/bash name=$1 if [ -z "$name" ]; then echo "Specify a configuration" exit 1 fi # change the terminal title printf "\\033]0;VPN Session\\007" cfg=/home/$SUDO_

Elements of an Application

Deconstructing your application helps you to be able to better know how to manage its lifecycle. There are commonly four elements to an application: 1. Stack Application Framework, i.e. Java, Node, etc. 2. Code The code running in the Application Framework Zero environment specific definitions (environment agnostic) 3. Configuration

Technical Level

Everybody is at a different level in technical skill. The guides on this blog use the following scale: * Neophyte - anybody who can login to a computer * Beginner - those starting to dig into the deeper parts of the interwebs * Adept - you can make your way around a terminal,

Service Assurance Categories (SAC)

Information Assurance

Service Assurance Categories (SAC)

The Department of Defense has defined a group of levels known as “Mission Assurance Categories” or MAC levels. These take the concept of what has been discussed over time in IT for categorizing applications into groups relevant to their importance to the organization (i.e. Gold, Silver, Bronze, etc). Often

Application Installation Delivery

Note: This concept pre-dates containers by some time, but has since been superseded by this newer technology. However, if you are still limited to running without containers, it still has merit. The AID approach to application installations is geared towards not just documenting how an application is installed, but following

Biological Network Security

*Note: this article was originally published on Security Focus, 16-Jan-2002. I have updated it in places to be more relevant to the current world constraints. Like a raging cancerous growth the Internet has evolved and expanded in a rapid, unplanned and chaotic manner. Initially, little consideration was given to network