1: W2K Networking and OS Essentials
by Solana L. Nolfo
GirlGeeks Marketing Coordinator
knew that I’d visit Denver, Colorado on a Tuesday night, Lima, Peru
on a Thursday night, and make it back home after each journey with
a greater understanding of Microsoft Windows 2000.
As a personal challenge, and demonstration that there’s room for
geek in every girl, I am taking a Windows 2000 (W2K) Networking
and Operating System (OS) Essentials class at the Learn IT! Training
Center in San Francisco, CA, where classroom computer stations are
named after different cities. This night course meets twice a week
and is step 1 in the track to become a Microsoft Certified Systems
Engineer 2000 (MCSE), the crème de la crème of Microsoft certifications.
Unlike fine wines, these certifications do not get better with age,
and being on top of the latest OS is everything.
The course material seems to be a refresher for the majority of
the class, but is new and completely fascinating to me as an OS
and networking blank-slate. At “introductions time” I learn of the
other blank-slates, including a cartographer who wants to make more
money, and a hotel employee looking for a change. The tech-savvy
students include an investment bank employee who is spearheading
the W2K rollout, an SQL administrator for the Italian Consulate,
and an electrical engineer who wants to expand his capabilities,
to name a few.
But the student who really stands out is the only other female
in a room of about 15 or so men, Rhonda. When we first noticed each
other we made eye contact and winked, a silent declaration of GirlGeek
power. This is Rhonda’s second time in an MCSE 2000 program, so
she knows what she’s in for and is ready to dispense the advice
and support that she did not receive through her first program.
Rhonda’s Rule #1: Take the certification exam soon after course
completion. In an effort to avoid exam costs, Rhonda did not try
for the certification and instead began to apply for MCSE-required
jobs. Nobody let her know that course experience is not enough,
and so she’s back to review and obtain the necessary certification,
which should happen in approximately five to six months.
In only two nights, however, I was able to absorb a quick overview
of the W2K operating system and networking basics. In a nutshell,
an operating system manages a computer’s hardware, software, memory,
and data management. Networking allows for information sharing and
centralized administration and support. This overview will continue
for another few nights and then I’m off to Implementing W2K Professional
and Server. I hear we even get to hack each other’s computers as
part of the learning process!
Until then, I will learn from lectures, labs, in-class exercises
and homework. Class participation is definitely encouraged, and
I was even awarded a chocolate bar for asking to review a particular
question in class: Which tool in the Administrative Tools folder
enables you to manage shared folders on the server and administer
the hard drive? Answer: Computer Management (then Shared Folders
Perhaps naming each workstation at the LearniT! Training center
after a different city serves to remind students of how far they
can go if they “graduate” and become MCSE certified. With hard work
and a stellar attention span this GirlGeek in Training might become
certified and take over the GirlGeeks IT department! After all,
it can’t be that scary if there’s chocolate involved.
DKNY, let's talk DHCP. Donna Karan has nothing on Dynamic Host Configuration
Protocol, which many of you know reduces the work necessary to administer
a large IP network. You can't pull that off with a matte jersey
vocabulary has me dreaming in acronyms and I'm ready to talk tech
with anyone who will listen. I even extended a recent visit to Kinko's
on account of an exciting chat with the manager, an ex-Unix administrator!
My buddy and co-worker, Omar Pahati, (denoted below as 'GuyGeek')
has been hearing a lot about my new fascination, and is enjoying
a tech adventure of his own: Linux. Lucky for me, and the rest of
the world, Israeli Internet investor Yossi Vardi took his son's
advice and instant messaging was born. I've been able to keep the
banter at a healthy pace ever since.
are actual conversations and did not take up any of my valuable
Your Linux class is going to be sooo cool!
I am much
closer to discovering the full potential of my inner geek, as evident
by my envy of Omar's upcoming Linux class. Linux is definitely on
my to-do list, but first I must master the many layers of Microsoft
Windows 2000 (W2K) Network and Operating System Essentials, in addition
to my new course, Implementing W2K Professional and Server (all taken
at the LearniT! Training Center in San Francisco, CA, of course).
As part of a recent in-class assignment, we learned how to obtain
detailed configuration information - such as Host Name, DNS server,
IP address, and more - by typing "ipconfig/all" at the command prompt.
And to think that all this time I've worked on my computer completely
unaware of its identification, its "name". This is a task I was eager
to test out on my computer at work.
i know i'm excited!
i might take the certification exam too if i think i learned enough.
then i can install linux all over the world.
maybe we'll start our own networking firm. Solana and Omar's W2K/Linux
have you been reviewing for the MCP exam? can you answer questions
some of the "easy" ones...
like, what does OU stand for?
Did you know that from my subnet mask, 255.255.0.0, I can tell that
our IP addresses are class B?
scalability wasn't taken into consideration when the Internet became
the hot commodity that it is. Millions of networks are connected to
this infrastructure by way of TCP/IP (the standard protocol stack
used for communication over the Internet), which requires that each
network and computer therein be identified by an IP address. A "classful"
system is used for assigning these addresses and classifies network
sizes into three main categories: Class A (large), Class B (medium)
and Class C (small).
each 255 (from the subnet mask) represents 8 bits, so since our
subnet mask is 255.255.0.0 we have 16 bits (8 + 8)
to figure out the maximum amount of IP addresses we can use, you
calculate 2 to the 16th minus 2
why the minus 2?
b/c you can't use the network IP or the broadcast address
so we can have up to 65,534 IP's! more than the amount of hosts
we have on our network.
clothing, medium is the most popular size and is usually the first
to fly off the racks. Class B networks are similar in popularity
due to the majority of organizations falling into the Class B category.
However not all medium-sized networks are a "perfect" Class B. For
example, a network of 2,000 computers is assigned 65,534 IP addresses
in the classful system, though it only requires 2,000. This allocation
leaves 63,534 IP addresses unused. Because IP addresses are finite,
we're running out of numbers and will soon have to implement an
address system that will leave the classful system behind and scale
without the growing pains. With CIDR (Classless Inter-Domain Routing)
it is possible for companies to obtain IP addresses in quantities
much closer to what they actually require, reducing the amount of
IP addresses that go unused. Conservation of IP addresses can also
be accomplished with NAT:
yesterday we learned about NAT...
Ah, the splendors
NAT stands for Network Address Translation, it allows you to share
At LearniT! they use it to have all of their locations (san mateo,
san francisco, phoenix) on the same T1 line
even in phoenix? they share the T1?
you're such a geek, solana. and you just started. imagine what you'll
be like in a few months!