Section 1771 9:00a - 12:05p Sat Bus 263
will be used extensively to communicate with you.
Announcements, grade reports, and assignments will be posted here.
Please access the website from any SMC computer lab. Alternatively,
it can be viewed from an internet-connected browser anywhere. You
are responsible for awareness of the information posted here.
with approximate weekly topic coverage corresponded to related
readings, homework assignments, and in-class slides I will use.
Please follow this outline as we move through the topics, for assignments and reading
I want to assign.
1) read all the announcements below and follow all the
links they contain. I will expect you to be familiar with the
information they convey.
2) do the reading and homework shown in the "Reading" and
"Homework" columns of the course outline's topic #1.
First-day handout - explaining use of class computers.
A Remote Unix system
will be created for you.
Using ssh (secure shell). ssh is an important tool you will use
for interacting with remote computers. For that you will need an ssh
client. There are a number of ssh
Distributing files from sputnik to the class as a whole,
publicly - the above file transfer discussion describes file movement
to and from your own home directory, exclusive to you. Sometimes I will
want to have someplace to put a file so everybody can get to it and
download it. When I do that, here's
how to download them.
Cover art on Tannenbaum textbook:
What is it??
asks the switchboard operator. The switchboard is a board. It's for
switching. Switching changes a circuit between you and somebody. It can
complete a circuit to your Aunt Bheulah in Iowa City so you can
thank her for the knit socks. After you hang up if you want to call
your uncle in Waco you'll need to switch circuits, to get a circuit
to him instead of her. That's what the operator does for you. The
"switch"ing in "switch"board is circuit
switching. Nowadays in computer networks it's not circuit switching
anymore, it's packet switching.
Functional layering - the famous "Open Systems
Interconnect" model is depicted below. Somebody once had the
idea that maybe there could be a way to get independent computer
systems of different types to be able to exchange information with
one another. The diagram blueprints the idea for "how in the
world are we going to make that work??" That idea is the
subject of this course.
First-day administrative information you will
need to know:
What SMC's wireless internet access service doesn't do
- everything! (with one big exception). SMC's web page entitled "Wireless
Internet Access at SMC" tells you what their service does
"What network services are available?
"Only web access is allowed (http and https). Campus network ports and the wireless network do not allow access to any non-web services such as telnet, FTP, SMTP, POP, IMAP, etc."
At this early stage in the course do you know what that means?
I'm not sure. If you don't, you will soon. But if you try to have
the service do anything that it doesn't (clean your socks, chill
your beer, connect to a remote machine with ssh...) I hope you won't
ask me why it didn't work.
Running linux at home.
Slides available online - for
most if not all slides I will show in class. Links to them can be
found in the "Slides" column of the course outline.
Course-long textbook reading -
a chapter-by-chapter list ( 6th edition,
5th edition ). The textbook is divided into chapters and they in turn into numbered
sections. The list tells you which sections to read for this
course when chapters are assigned. For example if I assigned chapter
10 and it had 17 sections, if this list specifies "10.1-100.5,
10.7, 10.12-17" it means I didn't feel sections 10.6 nor
10.8-11 were relevant enough so I only list the balance of the
chapter. Read unlisted portions for your own interest if you wish,
but the listed sections are what's officially assigned to you.
Textbook - Computer
Networks and Internets,
sixth edition, Douglas Comer, Pearson Prentice Hall , 2015.
Wireshark - is an excellent free packet capture utility.
What is a packet, and why caputre it? We'll talk about that later. I
will ask you to install and use Wireshark later in the semester,
assuming you have a linux or windows computer available on which to
do so. Please visit Wireshark's
Opportunity - I'm happy to tell you
that as a class we have the fortunate invitation to use a network testbed
facility operated by USC/ISI called DETER. I will request individual DETER
accounts for you; when they are created you will get an email message with
info and credentials. In class I will describe DETER and how we will use it.
This will come some weeks into the semester. In the meantime, you
can explore the links under the heading "DETER net testbed" at
left if you like.