lion networking.pdf
TRANSCRIPT
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OS X Lion: NetworkingIntroduction
This course covers the networking, connections and related features of OS X Lion.
Course Objectives
Explain the different network connection typesDemonstrate how to connect to network services, shared computer, servers and printers
Implement file sharing and other related services on a Mac (including AirDrop)
Configure a Mac to protect against unwanted incoming connections
Determine and resolve common network and connectivity issues
Networking in OS X Lion
You can use OS X Lion to connect to the Internet, shared computers and other resources on a n
order to connect to the Internet or to a network, it needs a connection method. Examples inclu
1. Connecting from home
A high-speed connection at home to your Internet Service Provider (ISP), usually via a broa
Audience
Technicians who wish totroubleshoot and service
Mac computers
Prerequisites
OS X Lion: Basics, StartupProcess.
Time Required
60 minutes
You wi
OS X LiMac com
and Intern
Networking
Introduction
Course Overview
Networking in OS X Lion
Network Preferences
Connect to Wired Network
Connect to Wi-Fi Network
Connecting to Servers
Connecting to Printers
Sharing Files
AirDrop
Network Security
Symptoms and Fixes
Troubleshooting Practice
Learning Resources
Contact Us
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modem or DSL.
2. Connecting around town
Use a wireless Internet hotspot (Wi-Fi).
3. Connecting at work
Connect to the Internet via your office network.
4. Connecting via Personal Hotspot or your wireless carrier
If none of the above apply, you may be able to use your iPhone, iPad, or a Personal Hotspot
These connections will typically require include a user name or user account, a password and o
depending on your ISP or network. If you dont know what settings you need to use, ask your IS
administrator.
AirDrop
Another method to share files is AirDrop. This feature in OS X Lion allows you to send files to a
you wirelessly (Wi-Fi network required).
1. Click the AirDrop icon in the Finder sidebar.
2. Your Mac automatically discovers other AirDrop users within about 30 feet of you.
3. To share a file, simply drag it to someones name.
4. Once the other person accepts, the fully encrypted file transfers directly to that persons D
folder.
When youre done with AirDrop, close the Finder window you used to transfer files, and your M
visible to others.
Can't find the recipient?
To send a file, the receiving user must have AirDrop turned on (by clicking the AirDrop icon in t
sidebar).
AirDrop Demo
Watch the AirDrop Demo video
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Network Preferences
Use the Network pane of System Preferences to configure your connection method. Enter the se
your Internet service provider or network administrator (such as TCP/IP address, account name,
1. Network Service
Group of settings for a specific network port or interface (such as Wi-Fi, Ethernet, FireWire
Each service can have different locations.
(Green) = Active and connected
(Yellow) = Active but not connected
(Red) = Not configured
2. Network Location
Create, edit and save settings for network services and save them as a location. Each netw
have multiple saved settings. If you often change network settings, switching between loca
and easier than repeatedly modifying individual groups of settings.
For example, you have a portable computer. You might want to make a location for home,
connect to the Internet with a DSL modem, and a location for office, where you connect t
network and the Internet using Ethernet or AirPort.
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3. Network Settings and Information
Enter information received from your Internet service provider (ISP) or network administrat
on the type of network service youre using, Ethernet, DSL, Cable Modem, Wi-Fi, for examp
information may vary.
Need assistance?
Click the Assist me and select Assistant (for new connections) or Diagnostics (for problems).
Setting Advanced Options
In most cases, the settings that are configured automatically are correct. However some networ
may require you to set advanced options. Click Advanced, click Hardware, and then choose Ma
Configure pop-up menu.
More than one service active?
To change which network service (port or interface) is used first when more than one is active o
click the Actions button and choose Set Service Order. Drag the service you want to try first to tlist.
Symptoms and Fixes
Here are common networking problems as reported by users. Follow steps in the order indicate
resolve the issue.
Symptom #1: Can't connect to network (via Ethernet cable)
Symptom #2: Can't connect to network (via Wi-Fi Connection)
Symptom #3: Can't connect to server or shared computer
Symptom #4: File sharing doesn't work
Symptom #5: Can't locate a specific person in AirDrop
Back to top
Symptom #1: Can't connect to network (via Ethernet cable)
Summary
User is unable to connect to network via Ethernet cable.
Resolution
1. Check the physical cable connections between the Mac and the wall outlet, modem, hub or
(If applicable, check that the hub, router or modem is powered on)
2. Verify that settings (provided by ISP or network administrator) were entered correctly.
3. Choose Apple menu > System Preferences, and then click Network.
4. Click Assist me.
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. .
5. Click Assistant.
6. Follow Network Setup Assistant instructions.
Back to top
Symptom #2: Can't connect to network (via Wi-Fi Connection)
Summary
User is unable to connect to network via Wi-Fi connection.
Resolution
1. Check the computer to ensure it is equipped with AirPort.
2. Verify that the user is attempting to connect to the correct Wi-Fi network.
If it is a closed network: Go to System Preferences > Network > Choose Other from pop-u
network name.
3. Verify that the correct password is being entered.
If the user is still unable to connect:
4. Is the computer within acceptable range of the wireless access point (WAP)?
Back to top
Symptom #3: Can't connect to server or shared computer
Summary
User can't connect to a specific server or shared computer.
Resolution
1. Is the server or shared computer on the same network as the user?
2. Is the user entering the correct DNS name or IP address?
3. Can the user access the Internet from their computer?
If not: Follow the resolution steps in Symptom #1 or #2.
If yes: Contact the server or computer's administrator to verify settings.
Back to top
Symptom #4: File sharing doesn't work
Summary
User says other parties are unable to view files on his computer.
Resolution
1. Choose Apple menu > System Preferences > Sharing.
2. Verify that the File Sharing service is checked.
3. Verify that the correct folders are being shared in the Shared Folders list.
4. Verify that the user(s) have the correct permission assigned to them (Read Only, Write Only
Back to top
Symptom #5: Can't locate a specific person in AirDrop
Summary
User would like to share a file with a s ecific erson however the reci ient is not found in AirD
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Resolution
Both the sender and recipient must have AirDrop turned on. This is done by clicking the AirDro
Finder sidebar.
Back to top
Connect to Wired Network
If you want to connect your Mac to a network using a cablefor example, if youre connecting toffice network, a cable modem, or a digital subscriber line (DSL) modemfollow the steps belo
connected.
Step 1: Gather Information
To set up your network connection, you might need the following information:
What is my user or account name and password?
Does my Mac receive its IP address manually or automatically?
If automatic, is it assigned using DHCP or BootP?
If manual, what is the IP address, subnet mask address, and router address?
For some networks and ISP: What is the DHCP service name, and what is the DNS name?
Your network administrator or Internet service provider (ISP) can give you this information.
Definitions
DHCP and BootP: Both are protocols (rules or languages) that govern how devices on a networ
with each other. Dynamic Host Configuration Protocol (DHCP) and BootP (Bootstrap Protocol) en
automatically assign an IP address to a computer.
IP address: Internet Protocol address. Numerical label assigned to each device (e.g., computer,
participating in a computer network.
Step 2: Connect your Mac
Depending on the type of equipment you have, connect the other end of the Ethernet cable to y
office networks Ethernet device (such as a hub or router), or to the cable or DSL modem provid
Internet service provider (ISP).
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If the equipment isnt already turned on, start up your computer, and turn on the hub, router, o
let it start up completely.
Step 3: Configure network
Enter the required information directly into the Network pane of System Preferences :
Can't connect?
1. Double check the physical cable connections between the Mac and the hub, router or mode
2. Verify that your router is working properly.
3. If your Mac is issued an IP address of 169.254.xxx.xxx, contact your ISP or administrator o
server. Request a proper IP address to access the Internet.
Connect to Wi-Fi Network
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If you want to connect your Mac to a network using a wireless connection, follow the steps belo
connected.
Connecting to a Wi-Fi Network
1. Choose Apple menu > System Preferences, and then click Network.
2. Click Wi-Fi in the network connection services list.
Note: If Wi-Fi isnt in the list of network services, click Add (+) at the bottom of the list, ch
from the Interface pop-up menu, give the service a name, and then click Create.
3. Choose a wireless network from the Network Name pop-up menu. Enter the password for t
necessary.
Note: If the network you expected is not listed, verify that the AirPort base station or wirele
configured correctly. Next, find out if you are trying to connect to a closed network (a net
name is hidden). Try clicking Join Other Network, and then enter the network name and pa
necessary.
Tip: Show Wi-Fi status in menu bar to display the Wi-Fi status icon:
You can use the Wi-Fi icon in the menu bar to choose your network from the list and conne
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Default Wi-Fi Connection
By default, your Wi-Fi connection attempts to join the wireless network your computer was mos
connected to.
Mac OS X keeps track of the wireless networks your computer has connected to. The list can be
Network preferences.
Learning Activity
When you're not at home, work or nearby a Wi-Fi hotspot, consider using a Personal Hotspot de
cellular phone. A Personal Hotspot lets you connect your computers and devices to the Internet
Cellular Data connection.
How do you connect your Mac to a Personal Hotspot?
Hint: Start with Knowledge Base article HT2497
Click here to view answer
Connecting to Servers
You can use your Mac to connect to file servers, as well as other Mac and Windows computers (t
sharing enabled) on your network. In addition, you can connect to file servers that use these pr
AFP (Apple File Protocol)Example address: afp://ComputerName.CompanyName.com
SMB/CIF (Server Message Block and Common Internet File System)Example address: smb://DNSname/sharename or smb://IPaddress/sharename
NFS (Network File System)Example address: nfs://DNSname/pathname
FTP (File Transfer Protocol)Example address: ftp://DNSname
DNS Name or IP Address?
You can enter the Internet Protocol (IP) address for the computer or server rather than its DNS (
System) name. Example: 92.123.149.15 = apple.com.
Because domain names are alphabetic, they're easy to remember. However, the Internet is reallnumerical IP addresses. Every time a domain name is used, a domain name system translates th
corresponding IP address.
Connecting to Server or Shared Computer
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1. In the Finder, choose Go > Connect to Server.
2. Click Browse.
Note: If you are connecting to a server/computer outside of your network (or if you know it
IP address), enter it into the Server Address field. Continue onto Step 5.
3. Search for the server/computer.
4. When your computer connects to a remote computer in the Network browser, OS X Lion au
connects your Mac as a guest user, if possible. It will display any publicly available folders
that server/computer.
5. To log in to the shared computer as a registered user, click Connect As, and enter your use
password:
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Tip: To make it easier to connect to the computer in the future, select Remember this pas
keychain to add your user name and password for the computer to your keychain.
6. Once connected, the available volumes on the server change to reflect your new level of ac
Can't find a server or shared computer
If you cant locate a shared computer or server or connect to it, it may not be available or you m
permission to connect to it. Contact the person who owns the computer or the network admini
Connecting to Printers
You can connect to printers on your local network that use Bonjour, IP, and Open Directory.
Definitions
Bonjour: Also known as zero-configuration networking. Enables automatic discovery of comput
and services on IP networks using industry standard IP protocols.
Open Directory: A directory service is that stores and organizes information about a computer
users and network resources.
Connecting to a Network Printer
1. Open a document to print, and then choose File > Print.
2. Open the Printer pop-up menu and choose your printer. It may be in the Nearby Printers s
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3. If you dont see your printer, choose Add Printer from the Printer pop-up menu. A dialog a
any Bonjour, IP, shared, and Open Directory printers on your local network. It may take a m
for your printer to appear.
4. If you dont see your printer in the list, do one of the following:
IP Printer: Click IP in the toolbar and enter the printers IP address (a number that looks lik
192.168.20.11) or DNS name (for example, printer.example.com). Note: Printers that supp
Printing Protocol (IPP), Line Printer Daemon (LPD), and HP Jetdirect (Socket) can be added in
SMB/CIFS Printer:
1. Select the printer from the browser.
If prompted, enter the user name and password for the printer.
2. Choose the item appropriate for your printer from the Print Using pop-up menu.
Be sure to choose the correct printer model for the printer youre using. For more info
the documentation that came with the printer. If you have an HP PCL-compatible print
listed, choose the printer model that most closely matches your printer.
3. Click Add.
If the software for your printer cant be found
If the software for a printer isnt on your Mac computer, it can usually be downloaded from App
needed. If the software cant be found, you may need to download it directly from the manufact
using generic printer software.
Sharing Files
You can set up your computer to share files and folders with other users on your network. You
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entire computer with everyone, or allow specific users access only to certain folders.
Share more than just files
Activating additional options in the Sharing Preference pane can also allow a Mac to function as
scanner, remote optical drive, web or VNC (screen sharing) server. Your Mac can also share its I
connection with other Macs using FireWire, Bluetooth, Ethernet or Wi-Fi.
How to Activate File Sharing
1. Choose Apple menu > System Preferences > Sharing.
2. Select File Sharing and click the checkbox if it isnt checked.
Any user with an account on your computer (in the Users & Groups pane of System Prefere
access your computer by connecting to it over the network. A user with an administrator a
access your entire computer.
File Sharing Protocol
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To change the protocol used for sharing files, click Options, and select AFP or SMB.
Note: If Windows users connect to your computer to share files, make sure SMB is selected, sele
checkbox next to the name of each Windows user that will share your computer, and enter the
that user.
Sharing Specific Folders
1. Click Add (+) at the bottom of the Shared Folders list.
2. Locate the folder, select it, and click Add.
Public Folders
By default, the Public folder of each user with an account on your computer is shared. To keep
being shared, select it in the Shared Folders list and click Delete (-).
Specific User Access
To give only specific users access to a folder:
1. Select the folder in the Shared Folders list.
2. Click Add (+) at the bottom of the Users list.
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3. Select a category of user, and then select the user and click Select.
To select a user from the accounts youve set up in Users & Groups preferences, select
To select a user from users on your network, select Network Users.
To select a user in your personal address book, select Address Book.
To create a new account that will only be used for sharing, click New Person, enter a napassword, and click Create Account.
4. Select the user in the Users list, and then click the triangles next to the user name and cho
access the user should have to the selected folder:
No Access: The user cant see or copy files from the folder.
Read & Write: The user can see and copy files to and from the folder.
Read Only: The user can view the contents of the folder but cant copy files to it.
Write Only (Drop Box): The user can copy files to the folder but cant view its contents.
Network Security
OS X includes a personal firewall that can be used to block unwanted incoming connections to
A firewall protects the services on your computer from other computers on networks or the Inte
Services that were turned on in Sharing preferences already appear in the list. To prevent incom
connections from one of these services, you must turn off the service in Sharing preferences.
Turn On Firewall Protection
1. Choose Apple menu > System Preferences, click Security & Privacy.
2. Click Firewall.
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. c t e oc con to un oc t, an t en type an a m n strator name an passwor .
4. Click Start to turn on Firewall.
Advanced Features
Click Advanced to allow only specified or essential applications and services to connect; or to al
specific software to receive incoming connections.