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OPS235 Lab 1

765 bytes added, 08:13, 30 September 2019
Part 1: Using VMware Workstation Pro to Create a New Virtual Machine (VM)
*'''Name:''' c7host
*'''Boot media / Installation:''' CentOS 7 Full Install DVD (image file)
:::*Download at Seneca College: <br> https://mirror.senecacollege.ca/centos/7/isos/x86_64/CentOS-7-x86_64-DVD-18101908.iso:::*Download outside Seneca College:<br>http://mirror.netflash.net/centos/7/isos/x86_64/CentOS-7-x86_64-DVD-18101908.iso
*'''Disk space:''' 238GB
*'''CPUs:''' 1 CPU, 4 cores (recommended)
#Refer to the Information box regarding how to access the admin account from the command line.
#Issue the command <b><code><span style="color:#3366CC;font-size:1.3em;">su </span></code></b> Issue . This will switch you to the '''pwdroot account''' . From there, issue the <b><code><span style="color:#3366CC;font-size:1.3em;">pwd</span></code></b> and '''<b><code><span style="color:#3366CC;font-size:1.3em;">whoami''' </span></code></b> commands to confirm your directory pathname. When finished logout of this accountusing the command <b><code><span style="color:#3366CC;font-size:1.3em;">exit</span></code></b>.#Issue the command <b><code><span style="color:#3366CC;font-size:1.3em;">su - </span></code></b> . Issue the '''<b><code><span style="color:#3366CC;font-size:1.3em;">pwd''' </span></code></b> and '''<b><code><span style="color:#3366CC;font-size:1.3em;">whoami''' </span></code></b> commands to confirm your directory pathname. What do you notice are the main differences between using '''su''' versus using '''su -''' ?
# An installation log file called <b><code><span style="color:#3366CC;font-size:1.2em;">/var/log/anaconda/packaging.log</span></code></b> has been created to record the installation of your c7host machine. This file is an ASCII file which can be viewed with the <b><code><span style="color:#3366CC;font-size:1.2em;">more</span></code></b> command.
# You can make use of this file to determine how many packages have been installed: complete the following command to count the number of packages that are labelled "Installing" in the installation log file:
:: <b><code><span style="color:#3366CC;font-size:1.2em;">grep -i packaging /var/log/anaconda/packaging.log | wc -l'''</span></code></b>
 
===Part 3: Disable SELinux===
:'''Perform the following Steps:'''
# Disabling SELinux is quite simpleMake sure you're logged in as root. <b><code><span style="color:#3366CC;font-size:1.3em;">su -</span></code></b># Edit the file '''/etc/selinux/config: ''': <b><code><span style="color:#3366CC;font-size:1.3em;">vim /etc/selinux/config'''</span></code></b>
# In the editing session, set '''SELINUX''' to '''<u>disabled</u>''' (from ''enforcing'') and save your editing session.
# Restart your VM.
# You can check the status of SELinux at any time at the command line by typing: '''<b><code><span style="color:#3366CC;font-size:1.3em;">sestatus'''</span></code></b>
=== Part 4: Perform Software Updates===
# Open Terminal.
# Login as root: '''<b><code><span style="color:#3366CC;font-size:1.3em;">su -'''</span></code></b># Type: '''<b><code><span style="color:#3366CC;font-size:1.3em;">yum update'''</span></code></b>
# Follow the prompts.
# If there is a kernel update, reboot your system. (There usually is on a first update after OS installation.)

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