CAO 152C Intermediate Windows – Week 5

From Thursday

Homework: users…how’d you do? Any left-over questions?

2

Set File and Folder Sharing

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

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

For file sharing, you’ll need Core Networking

File and Printer Sharing

HomeGroup

Network Discovery

Windows Collaboration Computer Name Registration Service

Windows Peer-to-Peer Collaboration Foundation

Testing your Firewall

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

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 “Public” network is most closed

Click the “Change Advanced Sharing Settings” link at the left.

Network and Sharing Center

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

Start Control Panel Network & Internet HomeGroup

Choose which libraries you want to share: Pictures Documents Music Printers Videos

Sharing Individual Drives or Folders

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

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

“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

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

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

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

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

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

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

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).

All three standards are range-sensitive.

Using Wireless LANs

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.

Both are radio receivers/transmitters. Advantages:

No cables to run Easy to add new devices and computers.

Set Up Network Interface Cards

To see the NICs in your computer, Start Control Panel Network & Internet Network & Sharing Center

Set Up Network Interface Cards

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

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.