[[Category:OPS335]]
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!style="background: #cccccc"| Quick Links
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|<span style="background:#ffff00">[[OPS335 Weekly Schedule|Weekly Schedule]]</span><br/>[httpshttp://scs.senecacwww.onsenecacollege.ca/coursessos/ops335 findOutline.do?schoolCode=SICT&termCode=20191&subjectCode=OPS335 Course Outline]<br />[httphttps://fedoraprojectcentos.org Fedora / CentOS Project]<br />[httphttps://wiki.centos.org/Documentation CentOS - Documentation]<br />[https://docswiki.fedoraprojectcentos.org/ Fedora documentationHowTos CentOS - Howtos]
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!style="background: #cccccc"| Assignments
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||[https://wiki.cdot.senecacollege.ca/wiki/OPS335_-_Assignment_1_(Part_1) OPS335 - Assignment 1 (Part 1)]|-|[OPS335_Assignment_1|https://wiki.cdot.senecacollege.ca/wiki/OPS335_-_Assignment_1_(Part_2) OPS335 - Assignment 1(Part 2)]|-|[https://wiki.cdot.senecacollege.ca/wiki/OPS335_-_Assignment_2 OPS335 - Assignment 2 ]<br/>[[OPS335_Assignment_2|!--Assignment 2]]-->
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= Welcome to OPS335 - ''Open System Application Server'' =
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== What This Course is About ==
This course teaches the maintenance and administration of a UNIX server using Linux. Students will learn to install configure, customize, test and maintain common services available on Linux servers.
This course is the third in a series of courses about Linux technologies.
* ULI101 taught you to be a Linux user.
* OPS235 taught you to move from being a Linux user to being a Linux system administrator.
* '''OPS335 will teach you to ''administer'' Linux ''servers'' (web servers, DNS servers, firewalls, file sharing servers).'''
As a system administrator, you will be responsible for installing, configuring, adjusting, maintaining, and troubleshooting the operation of Linux network services. You will potentially have several hundreds (or thousands) of people depending on the machines that you manage. This is a lot of responsibility, and with that responsibility comes power. You will be able to change anything on the system, and you will also have the ability to damage or destroy the system.
== What This Course is About == This course is the second in a series of courses about Linux technologies.* ULI101 taught you to be Linux ''user''.* '''In OPS235, you will move from being a Linux ''user'' to being a Linux system ''administrator''.'''* Later courses (OPS335 and OPS435) teach you to administer Linux servers (web servers, DNS servers, FTP servers, file sharing servers) -- and to use scripting to boost your system administration efficiency. As a system administrator, you will be responsible for installing, configuring, adjusting, maintaining, and troubleshooting the operation of computer systems. This is a lot of responsibility, and with that responsibility comes power. You will be able to change anything on the system, and you will also have the ability to damage or destroy the system. In this course you use a removable disk pack with the lab computers to set up a Linux system. You will also set up four several additional Linux systems using "Virtual Machines"virtual machines, and therefore gain experience with different types of system configurations as well as setting up networking between systems.
== Learning by Doing ==
Most of the learning in this course occurs through the hands-on problem solving that takes place in the eight labs and two assignments. Therefore, it's very important to stay up-to-date with the coursework, and to practice until you have confidently mastered each task.
All of the software used in this course is ''open source'' software, so you are free to use, modify, and redistribute it. This means that you can install it as many times as you want on as many different computers as you would like. It also means that you can tinker with it -- you can take it apart, see how it works, and put it back together in the same or a different way, limited only by your time and ambition. You are encouraged to experiment and question liberally.
The notes that you make during the labs and assignments are your reference material for the quizzes, tests, and assignments. Take really good notes, and if you have questions, experiment and consult with your professor.== Course Faculty ==
= Weekly Schedule ='''During the <b>Winter 2020</b> semester, OPS335 is taught by:'''
Weekly topic, lab, and assignment information is available on the [[OPS335 Weekly Schedule |OPS335 Weekly Schedule]] page.width="40% |
= Supplies Checklist =Required Materials ==<table cellpadding="10" cellspacing="0" width="100%"><tr><td width="10%" style="border-bottom: thin solid #cccccc;">[[Image:ssd.png|left|95px]]</td><td width="20%" style="border-bottom: thin solid #cccccc;padding-top:25px;padding-bottom:25px;">'''Solid State Drive (SSD)'''</td><td width="20%" style="border-bottom: thin solid #cccccc;text-align:right;">'''Minimum Capacity:''' 240 GB</td></tr><tr valign="top"><td width="10%" style="border-bottom: thin solid #cccccc;">[[Image:blank-cd.png|left|50px]]</td><td width="20%" style="border-bottom: thin solid #cccccc;">'''CentOS 7 Full Install<br>DVD Image'''</td><td width="20%" style="border-bottom: thin solid #cccccc;text-align:right;">[https://mirror.senecacollege.ca/centos/7/isos/x86_64/CentOS-7-x86_64-DVD-1908.iso Download at Seneca Lab]<br>[http://mirror.csclub.uwaterloo.ca/centos/7/isos/x86_64/CentOS-7-x86_64-DVD-1908.iso Download from Home]</td></tr><tr><td width="10%" style="border-bottom: thin solid #cccccc;">[[Image:ubs-key.png|left|50px]]</td><td width="20%" style="border-bottom: thin solid #cccccc;padding-top:25px;padding-bottom:25px;">'''USB Flash Drive'''</td><td width="20%" style="border-bottom: thin solid #cccccc;text-align:right;">Optional</td></tr><tr><td width="10%" style="border-bottom: thin solid #cccccc;">[[Image:log-book.png|left|44px]]</td><td width="20%" style="border-bottom: thin solid #cccccc;">'''Lab Log-book'''<br>(download and print)</td><td width="20%" style="border-bottom: thin solid #cccccc;text-align:right;">[https://matrix.senecacollege.ca/~ahad.mammadov/files/OPS335/OPS335-LLB-W2020.pdf PDF]</td></tr><tr><td width="10%" style="border-bottom: thin solid #cccccc;padding-top:25px;padding-bottom:25px;padding-left:25px;"><span style="font-size:3em;font-family:arial;color:red;font-weight:bold;">!</span></td><td width="20%" style="border-bottom: thin solid #cccccc;">'''Dos and Don'ts'''</td><td width="20%" style="border-bottom: thin solid #cccccc;text-align:right;">[http://zenit.senecac.on.ca/wiki/index.php/OPS235-tips tips]</td>
Needed by the second class: # '''Fedora 13 Live CD''' (x86_64). You can burn this from ISO image on a CD or a DVD using the Freedom Toaster (in the Open Lab) -- however, this machine has problems with some types of DVDs. The image is also available from:#* http://belmont.senecac.on.ca/fedora/releases</13/Live/x86_64/Fedora-13-x86_64-Live.iso - Seneca's mirror of the Fedora project. This is very fast, but is only accessible from within Seneca's network (you can't access this from home). You can burn this disc on the machines in the Open Lab.tr>#* http://get.fedoraproject.org - Accessible from any Internet connection.# '''SATA Hard disk in removable drive tray''' (at least 160GB). Please buy the tray from ACS or the bookstore as not all trays are compatible.# '''USB flash drive''' (64MB or more - 2GB or larger recommended. Warning: anything on this flash drive will be erased!)# '''[http://zenit.senecac.on.ca/~chris.tyler/ops235/2011-1</ops235_2011-1_lab_log_book.pdf Lab log book (PDF)]'''. Please note that you can use your log book during the quizzes, written tests, practical tests and the final exam. It's also the record that you have completed the labs, so don't lose it!table>
Needed for week 2: |}
# '''Fedora 13 installation DVD''' (x86_64) You can burn this from ISO image on the Freedom Toaster (in the Open Lab) <!-- however, WARNING: Do NOT remove this machine has problems empty table below to make professor list work properly with come types of DVDs. The image is also available from:#* http://belmont.senecac.on.ca/fedora/releases/13/Fedora/x86_64/iso/Fedora-13-x86_64Firefox and Google Chrome! -DVD.iso - Seneca's mirror of the Fedora project. This is very fast, but is only accessible from within Seneca's network (you can't access this from home). You can burn this disc on the machines in the Open Lab.#* http://get.fedoraproject.org - Accessible from any Internet connection.>
{{Admon<table><tr><td> </important|Bring all of these supplies to each class.|Even after installation, the Live CD, Installation DVD, and flash drive may be required.}}td></tr></table>
{{Admon<!-- WARNING: Do NOT remove this empty table above to make professor list work properly with Firefox and Google Chrome! --><table cellpadding="15" width="50%" style="display:block;"><tr><!--<td> [[Image:murraysaul.jpg|thumb|left|210px|<b>Murray Saul</importantb><br>(Section '''A''' (First Half))<br>[mailto:murray.saul@senecacollege.ca murray.saul@senecacollege.ca]<br />[http://murraysaul.wordpress.com/ Murray's web-site] ]]</td><td>[[Image:AhadM_200x200.jpg|Do not share your OPS235 disk drive with another coursethumb|left|175px|<b>Ahad Mammadov</b><br>(Sections '''B, C, and D''')<br>[mailto:ahad.mammadov@senecacollege.ca ahad.mammadov@senecacollege.ca]<br> ]]</td>--><!--<td>[[Image:ryanlockhart.jpg|thumb|left|175px|<b>Ryan Lockhart</b><br>(Section '''B''')<br>Ryan.Lockhart@senecacollege.ca<br /> ]]</td><td> [[Image:andrew-ow-2.png|thumb|left|175px|<b>Andrew Oatley-Willis</b><br>(Section '''B''')<br>andrew.oatley-willis@senecacollege.ca<br />]]</td><td>[[Image:chris.jpg|thumb|left|175px|<b>Chris Johnson</b><br>(Section '''F''')<br>[mailto:chris.johnson@senecacollege.ca chris.johnson@senecacollege.ca]<br> ]]</td>--><td>[[Image:petercallaghan.jpg|thumb|left|223px|<b>Colin Yip</b><br>(Section '''A''')<br>[mailto:colin.yip@senecacollege.ca colin.yip@senecacollege.ca]<br> ]]</td><td>[[Image:AhadM_200x200.jpg|thumb|left|223px|The work you do in this course will render your other work inaccessible <b>Ahad Mammadov</b><br>(Sections '''B''', '''C''' and may erase it'''D''')<br>[mailto:ahad.}}mammadov@senecacollege.ca ahad.mammadov@senecacollege.ca]<br> ]]</td></tr></table>
{{Admon/important|== Wiki Participation ==:Note: You do not need can edit these pages! Please feel free to purchase a textbook for fix typos or add links to additional resources. Please use this course.| We will be using online resources insteadcapability responsibly.}}
However, if you are the type who likes a good book, try the [http[Category://magazine.redhat.com/2008/01/31/book-review-fedora-linux-toolbox/ Fedora Linux Toolbox]. = Faculty = During the Fall 2011 semester, OPS335 is taught by: * [http://cs.senecac.on.ca/~paul.whalen/ Paul Whalen] (Section A, B, C) = Course Information = * [https://scs.senecac.on.ca/course/ops335 Course Outline]* [https://cs.senecac.on.ca/~scs/DonMillsPolicies/policy.html Course Policies]* [https://scs.senecac.on.ca/ School of Computer Studies Homepage] (includes class cancellation information and general bulletins) = Tips and Suggestions = * Always shut down your system under software control, rather than using the reset or power buttons. You can shutdown using the GUI or with the <code>poweroff</code>, <code>reboot</code>, <code>init</code>, or <code>shutdown</code> commands. Shut down your virtual machines before shutting down your main system.* If you get a message about the gnome-power-manager configuration at the login screen, you may have run out of disk space. Switch to a character-mode virtual terminal (for example, switch to VT2 by pressing Ctrl-Alt-F2). Login and take a look at the available space (with the command: <code>df -h</code>). If the <code>/</code> filesystem is full, delete some files (such as unused VM images in <code>/var/lib/libvirt/images</code>) and then reboot the system.* Fedora 13 Slowdowns: If your system is becoming very slow from time to time, it is probably due to a known issue with the Intel video driver, kernel, NICs, storage system, and hardware detection software (!). See [https://bugzilla.redhat.com/show_bug.cgi?id=523646 Bug 523646] on the Fedora Bugzilla system. A fix for this problem is apparently in the works -- update your system regularly so that you get the fix as soon as it is available.** '''Workaround:''' Type this command as root (be patient, it will take a minute or two for the system to return to normal speed): <code>killall hald devkit-disks-daemon</code> = This is a Wiki! = You can edit these pages! Please feel free to fix typos or add links to additional resources. Please use this capability responsibly.
