How to secure a fresh Linux virtual private server install

Introduction

A Linux virtual private server (VPS) is an essential tool for any cyber security analyst, but left unsecured it can quickly be taken over by those with more nefarious intentions. Lets make sure that does not happen. This blog and accompanying video covers a few basic “must do” tasks to configure a secure Linux virtual private server at first boot. Why do we need to secure a new system? Within seconds of it coming online it will be found and attacked. If you want to test this you can leave this system as installed for 24 hours and then check the logs, there will be brute force attempts on ssh at a minimum. You may want to re-deploy the VPS before going any further if you performed this test.

YouTube video on how to secure a Linux VPS.
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Setting up a Non-Attributable system on a Linode VPS

Security analyst need a system to perform research on that is non-attributable, i.e. one that cannot be traced back to them or there company. The non-attributable system’s purpose is to keep adversaries from knowing when you are on to them. This article outlines how to setup a Linux VPS on Linode.com and demonstrates how fast and easy it is to rebuild it with another operating system if needed. 

Check out the video on YouTube and subscribe to see more cyber security videos. 
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So you want to be a Cyber Security Analyst…

Welcome

Welcome to our humble digital abode! This site is all about cyber security and the tools needed to make it happen so if you are or want to be a cyber security analyst this is a good resource. Cyber security has different meanings depending on who you are talking too, here we will be covering it from a technical practitioner perspective and not as much from the management perspective. With that said, we will try to categorize content into the following five categories:

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