Lab – Hardening a Linux System Objectives Demonstrate the use of a security auditing tool to harden a Linux system. Background / Scenario Auditing a system for potential misconfigurations or unprotected services is an important aspect of system hardening. Lynis is an open source security auditing tool with an automated set of scripts developed to test a Linux system. Required Resources • PC with Ubuntu 16.04 Desktop LTS installed in a VirtualBox or VMware virtual machine. Step 1: Open a terminal window in Ubuntu. a. Log in to Ubuntu using the following credentials: User: cisco Password: password b. Click the terminal icon to open a terminal window. Step 2: The Lynis Tool a. At the command prompt, enter the following command to change to the lynis directory: [email protected]:~$ cd Downloads/lynis/ b. At the command prompt, enter the following command and enter the password password when prompted: [email protected]:~/Dowloads/lynis$ sudo ./lynis update info © 2016 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public. Page 1 of 5
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