Changes

First, we will focus on using the virtual machine and become familiar with some command VM operations such as switching between the full-screen and window modes. We will also learn to turn-off the screen-saver settings so you do NOT have to periodically re-issue passwords to gain access to your account (although it is a good security feature to consider in the future beyond this lab). We will also show you how to temporarily log in as the root user in order to perform tasks that require a Linux administrator.

===Part 1: Managing your Virtual Machine===

[[Image:taskbar.png|thumb|right|500px|The '''VM Workstation taskbar''' is useful when in full-screen mode to perform common virtual machine management tasks. ]]

The VM Workstation application allows virtual machines to run in '''windows mode''' or '''full screen mode''' (which is toggled by pressing the key combination: '''ALT-CTRL-ENTER'''). You can press the key-combination ALT-CTRL in order to return to your host computer system (i.e. running the VM Workstation application. The VM Workstation Toolbar (displayed on right-hand side) can be accessed while in full screen mode when the mouse pointer is at the top of the virtual machine display.

#Close the ''Settings'' Dialog box.

SELinux stands for '''Security-Enhanced Linux'''. It is a component that helps to better secure the system to protect against intrusion (hackers). SELinux is enabled upon the default install of CentOS. SELinux can be a good thing, if you take care of it and know how it works. For this course it is strongly recommended that you '''disable SELinux by default''' because we won't have the time to reconfigure it every time the labs make it necessary.

# Edit the file '''/etc/selinux/config'''

# In the editing session, set SELINUX to '''disable<u>d</u>''' (from ''targeted'') and save your editing session.