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OPS235 Lab 8

1,081 bytes added, 10 September
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= LAB PREPARATION =
<div style="page-break-before:always"></div>
{{Admon/caution|DO NOT START THIS LAB BEFORE GETTING LABS 1-7 CHECKED OFF|'''This lab will change some system values that make previous lab checks fail. For best results, have your professor check off Labs 1-7 before proceeding.'''}}
===Overview===
# Remain in your '''centos1''' and '''centos3''' VMs for this section.
# If your '''centos3''' DHCP server successfully issued the proper IP address configuration values to '''centos1''', check the file called:<br>'''/var/lib/dhcpd/dhcpd.leases''' in your <u>'''centos3''' VM</u>. You should get the similar contents:<br>::<span style="font-family:courier;"> lease 192.168.235.51 {</span>::<span style="font-family:courier;">&nbsp; &nbsp;starts 1 2016/06/28 01:07:00;</span>::<span style="font-family:courier;">&nbsp; &nbsp;ends 1 2016/06/28 01:27:00;</span>::<span style="font-family:courier;">&nbsp; &nbsp;cltt 1 2016/06/28 01:07:00;</span>::<span style="font-family:courier;">&nbsp; &nbsp;binding state active;</span>::<span style="font-family:courier;">&nbsp; &nbsp;next binding state free;</span>::<span style="font-family:courier;">&nbsp; &nbsp;rewind binding state free;</span>::<span style="font-family:courier;">&nbsp; &nbsp;hardware ethernet 52:54:00:ba:75:a8;</span>::<span style="font-family:courier;">}</span><ol><li value="3">On the client '''centos1''' check the contents of the <b>/var/lib/dhclient</b> directory. The files in this directory is where the dhclient stores its record of leases.<br><br> '''NOTE:''' If there are no files, then in a shell as '''root''' in your '''centos1''' VM issue the command: <b><code><span style="color:#3366CC;font-size:1.2em;">dhclient eth0</span></code></b><br>Then check to see if there is file containing lease information in that directory. You should get the similar contents:<br></li></ol>
::<span style="font-family:courier;"> lease {</span>
::<span style="font-family:courier;">&nbsp; &nbsp;interface "eth0";</span>
::<span style="font-family:courier;">&nbsp; &nbsp;fixed-address 192.168.235.5152;</span>
::<span style="font-family:courier;">&nbsp; &nbsp;option subnet-mask 255.255.255.0;</span>
::<span style="font-family:courier;">&nbsp; &nbsp;option routers 192.168.235.1;</span>
::<span style="font-family:courier;">&nbsp; &nbsp;expire 2 2016/06/28 02:34:22;</span>
::<span style="font-family:courier;"> }</span>
<ol><li value="3">On the client '''centos1''' check the contents of the <b>/var/lib/dhclient</b> directory. The files in this directory is where the dhclient stores its record of leases.<br><br> '''NOTE:''' If there are no files, then in a shell as '''root''' in your '''centos1''' VM issue the command: <b><code><span style="color:#3366CC;font-size:1.2em;">dhclient eth0</span></code></b><br>Then check to see if there is file containing lease information in that directory.<br><br></li></ol>
'''Answer Part 1 observations / questions in your lab log book.'''
# Switch to your '''c7host''' VM and '''su -''' into root.
# Change to the '''/root/bin''' directory.
# Issue the Linux command: <b><code><span style="color:#3366CC;font-size:1.2em;">wget httphttps://matrixict.senecac.onsenecacollege.ca/~murray.saulops235/ops235lab8/lab8-check.bash</span></code></b>
# Give the '''lab8-check.bash''' file execute permissions (for the file owner).
# Run the shell script and if any warnings, make fixes and re-run shell script until you receive "congratulations" message.<br><br>
[[Category:OPS235]]
[[Category:OPS235 Labs]]
[[Category:CentOS 7]]
[[Category:SSD2]]

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