CAO 191 WW - ltcconline.net

CAO 152C
Intermediate Windows – Week 5
From Thursday
2
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Homework: users…how’d you do?
Any left-over questions?
Set File and Folder Sharing
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To “share” a file or folder means to make it
accessible by users other than the user who created
the file or folder.
To share folders and drives (and printers), you must
address three components of Windows 7:
 The
Windows Firewall
 The Network and Sharing Center
 Sharing individual drives and folders.
Set up the Windows Firewall
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Start  Control Panel  System and Security 
Windows Firewall.
You turn it on or off by the link in the left pane.
To allow a particular program through the firewall,
click the link that says “allow a program or feature
through Windows Firewall.”
Take a look at the Program/Feature list.
 For
file sharing, you’ll need “Core Networking” and
“File and Printer Sharing” checked.
Set up the Windows Firewall
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For file sharing, you’ll need

Core Networking

File and Printer Sharing
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HomeGroup
Network Discovery
Windows Collaboration Computer Name Registration Service
Windows Peer-to-Peer Collaboration Foundation
Testing your Firewall
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In your browser, type www.grc.com
 Click
the “shields up” logo
 Scroll down and click the link for “Shields up”
 Click “Proceed”
 Click the heading button for “File Sharing”
 Then try “Common Ports”
Network and Sharing Center
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Once the Firewall is set, you need to look at the
Network and Sharing Center.
Start  Control Panel  Network & Internet 
Network and Sharing Center.
A “Home” network is most open
A
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“Public” network is most closed
Click the “Change Advanced Sharing Settings” link
at the left.
Network and Sharing Center
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Turn on Network Discovery
Turn on File and Printer Sharing
Turn on “Sharing so that anyone with network …”
Turn on Media Streaming
Use 128-Bit encryption
Turn Off Password Protection Sharing (if on a Home
Network)
Allow Windows to Manage Homegroup Connections
(if on a Home Network)
HomeGroup Folder Sharing
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Start  Control Panel  Network & Internet 
HomeGroup
Choose which libraries you want to share:
 Pictures
 Documents
 Music
 Printers
 Videos
Sharing Individual Drives or Folders
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In the Windows Explorer (“Computer”), choose the
library, folder, or drive you want to share.
Right-click it and click “Share With”
Choose the users whom you will share with.
Sharing Individual Drives or Folders
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You can adjust permissions for each user (or group)
 “Read”
allows them to view the files (but not make
changes to them)
 “Read/Write” allows them to change or delete any of
the files in the shared folder.
SETTING UP NETWORKING
Networks
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“Networking” is simply the process of connecting 2
or more computers together, to allow them to share
information and resources.
The Internet (capital “I”…originally the
“InterNetwork”) is the mother of all networks.
Smaller scale are WANs (Wide Area Networks)
and…
LANs (Local Area Networks)
 Such
as you’d have in your own home.
A Home Network
Select a Network Architecture

Windows 7 is a Network Operating System as well
as a personal computer Operating System
 (Early
versions of Windows on Personal Computers
needed a server with its own Network Operating
System in order to be networked.

So you don’t need a home server, if you have
Windows 7 computers
Select a Network Architecture
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Peer-to-Peer LANS:
 All
computers in the LAN are both servers and clients,
and share in both providing and using resources.
 Any computer in the network may store information and
provide resources (such as printer or music files) for use
by the other computers in the network.
 Putting together a Peer-to-Peer network can be fairly
inexpensive…cables (or wireless access points) for
under $100.
Select a Network Architecture
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Client-Server LANs
 Servers
manage the network and store information to
be shared on the network.
 They also manage printers and other resources.
Select a Network Standard
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Windows 7 supports the two predominant
networking standards: wired Ethernet and wireless.
Wired Ethernet (most commonly now) is called
10/100/1000BaseT.
 This
network will operate at regular Ethernet speed of
10 Mbps, Fast Ethernet speed of 100 Mbps, or Gigabit
Ethernet speed of 1000 Mbps.
Wired Networks
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Wired networks need 3 components:
 Network
Interface Card (NIC)
 Hub, switch, or router
 Cables (generally Unshielded Twisted Pair – UTP)
 Current
standard is Category 6, prior are Cat 5 & Cat 5e
Selecting Wired Ethernet Hardware
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Hub: the oldest and simplest of switching
devices…all computers are on the equivalent of a
telephone party line…everybody can hear
everybody else…all signals go everywhere.
Switch: (virtually made hubs obsolete) “intelligent”
devices that funnel network traffic from one
computer to another…like a private telephone line.
Router: joins 2 different networks (like the
connecting Internet to a home LAN).
 Routers
and switches are often combined in the same
device. (www.staples.com)
NICs
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Most (if not all) new notebook/laptop computers
come with a built-in Network Interface Card.
Desktop computers may or may not.
 You
can buy NICs to go inside your desktop (generally
PCI these days), or
 Get an external NIC that connects through a USB port
(which you could also do for older laptops that don’t
have a NIC built in).
Using Wireless LANs
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You can choose to replace your cables with radio
signals by using a wireless LAN.
There are several standards in use now:
 802.11b
(the oldest) data transfer rates up to 11
Mbps.
 802.11g (next newest) generally operates at 22 – 54
Mbps.
 802.11n (newest) generally operates between 70 and
140 Mbps (though it can go up to 300 Mbps under
perfect conditions).
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All three standards are range-sensitive.
Using Wireless LANs
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A Wireless LAN (WLAN) has two components:
 An
Access Point – connects to the network by being
plugged into a hub, switch, or router (or being built into
one of them).
 An Adapter – plugs into (or built into) your computer.
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Both are radio receivers/transmitters.
Advantages:
 No
cables to run
 Easy to add new devices and computers.
Set Up Network Interface Cards
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To see the NICs in your computer, Start  Control
Panel  Network & Internet  Network & Sharing
Center
Set Up Network Interface Cards
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Click “Change Adapter Settings” to see which
adapters in your computer are working.
You can see more device hardware information in
the Device Manager
 Start
 Control Panel  Hardware… then click the
link under “Devices and Printers” for “Device Manager”
Selecting Wireless Hardware
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Your wireless access point and wireless adapters
need to talk using the same standard, so if buying
new, consider that.
If you have a computer with wireless adapter
already built in, check its standard.
 Use
Device Manager, and look at its Properties, then its
“Details” tab.
For Thursday…

Get a screen capture of your Network and Sharing
Center window.
Download PDF