1 Readings, Assignments, Labs, and ToDoIndex

• Read (at least) these things (All The Words):
  • Week 14 Notes HTML - this file - Read All The Words
  • Unix/Linux Boot Process, GRUB, Run Levels, services, telinit, chkconfig
  • List of Commands You Should Know
• Using your lynda.com account, watch Unix for Mac OS X Users

2 Final Exam – Wednesday December 11 15h30 (3:30pm to 6:30pm)Index

• Your Final Exam schedule is posted in the ICT office. The Final Exam is closed-book, no aids, no devices.

• Your Final Exam covers the entire course, with slight emphasis on material since the second midterm test, and on material that students did not answer well in the previous two tests.

• Your Final Exam includes questions from all practice tests, not just the most recent ones.

• For full marks, you must read and understand the Test Instructions before the test for important directions on how to enter your answers and the test version number on the mark-sense forms.

• There may be more questions on the test than you can answer in the time allowed; answer the ones you know, first.

• Practice tests are available for the Final Exam.
  • Read the Practice Test README Information.
  • See the Practice Tests and answer files.
  • The same questions are posted as Quizzes on Blackboard. The Quizzes are random samples from the above practice questions, and so they often repeat questions.
  • If you only want to do each practice question once, use the practice test PDF files, not the Quizzes that repeat questions at random (and may not show you all the possible questions).

3 From the Class Notes link on the Course Home PageIndex

• Course Home Page
• Previous Week
• All Weeks

• Review last week. Did you do everything assigned last week?

4 From the Classroom Whiteboard/ChalkboardIndex

• Your in-class notes go here.

• Fill our your Course Evaluation

Subject: Important Message from CoursEval
The 2013 Fall surveys have been opened for almost a week now and the response rate is very low. Could you please encourage your students to take a few minutes and complete their assessments. The information you receive could be very useful to you. The survey will be open until Friday, Dec. 6th at midnight.
Course Assessment Administrator

• Stop using sudo on my CLS:

  idallen-ubuntu : Nov 26 15:04:29 : olfe0004 : 2 incorrect password attempts
  TTY=pts/3 ; PWD=/home/olfe0004 ; USER=root ; COMMAND=/sbin/shutdown -h now

• No root-owned files in your sysadmin account

• Reminder that Assignments 12, 13, and 14 each contain at the start short descriptions of the command names you need to complete the assignment. This is in addition to having the names mentioned in the List of Commands You Should Know.

• True/False – using the GRUB menu to modify kernel options at boot time makes the modifications permanent in the GRUB configuration file.

• Cross-device links: You can’t hard link a file from one partition to another; hard links only work inside a partition. For cross-device links, you have to use a symbolic link.

• What signal is sent to a process when you type ^C at the keyboard?

• Does this work?

  # su foo -c "touch /tmp/foo ; chmod 777 /tmp/foo"
  # su bar -c "chmod 666 /tmp/foo"

• Does this work for user foo in group foo and user bar in group bar?

  # touch /tmp/foo ; chown foo:bar /tmp/foo ; chmod 777 /tmp/foo
  # su bar -c "chmod 666 /tmp/foo"

• What services will stop when going from Run Level 3 to Run Level 2?

  $ ls /etc/rc2.d
  K10saslauthd   K87restorecond   S08ip6tables  S15mdmonitor         S80postfix
  K50netconsole  K88iscsi         S08iptables   S25blk-availability  S90crond
  K75netfs       K89iscsid        S10network    S26udev-post         S99local
  K75ntpdate     K89rdisc         S11auditd     S55sshd
  K87multipathd  S02lvm2-monitor  S12rsyslog    S58ntpd
  
  $ ls /etc/rc3.d
  K10saslauthd    K89rdisc         S10network    S25blk-availability  S80postfix
  K50netconsole   S02lvm2-monitor  S11auditd     S25netfs             S90crond
  K75ntpdate      S07iscsid        S12rsyslog    S26udev-post         S99local
  K87multipathd   S08ip6tables     S13iscsi      S55sshd
  K87restorecond  S08iptables      S15mdmonitor  S58ntpd

5 Real Sysadmin WorkIndex

5.2 Take Notes In Class!Index

Take Notes in Class

Author: 
| Ian! D. Allen  -  idallen@idallen.ca  -  Ottawa, Ontario, Canada
| Home Page: http://idallen.com/   Contact Improv: http://contactimprov.ca/
| College professor (Free/Libre GNU+Linux) at: http://teaching.idallen.com/
| Defend digital freedom:  http://eff.org/  and have fun:  http://fools.ca/