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Find the MAC (media access control) address for my Ethernet card?

Finder → Applications → Utilities → Apple System Profiler → System Profile → Network Overview → Built-in → Ethernet address

System Preferences → Network → TCP/IP panel; toward the bottom of the window, look for a sequence of numbers and letters next to Ethernet Address

Configure my system to connect to an Ethernet network?

Go to System Preferences → Network, and follow these steps:

  1. Select New Location from the Location pull-down menu. Enter a name for the new location (for example, ORA-Local), and click OK.

  2. Select Built-in Ethernet from the Show pull-down menu.

  3. From the Configure pull-down menu in the TCP/IP panel, select Using DHCP if your IP address will be assigned dynamically, or Manually if your machine will have a fixed IP address. (In most cases, particularly if you have a broadband Internet connection at home, your IP address will be assigned via DHCP.)

  4. If you're on an AppleTalk network, select the Make AppleTalk Active option in the AppleTalk panel, and select your Zone (if any).

  5. Click the Apply Now button.

Change my Rendezvous name from my full name to something else?

System Preferences → Sharing → enter the new name in the Rendezvous Name text box. Your Rendezvous name will have a .local extension—for example, MacChuck.local.

Find out the speed of my network connection?

Applications → Utilities → Network Utility → Info panel; look next to Link Speed in the Interface Information section.

Find out what's taking a site so long to respond?

Applications → Utilities → Network Utility → Ping panel; enter the network address for the location (e.g., www.macdevcenter.com, or an IP address, such as

Use the ping command as follows:

[macchuck:~] chuck% ping  hostname 

Trace the route taken to connect to a web page?

Applications → Utilities → Network Utility → Traceroute panel; enter the URL for the location.

Use the traceroute command as follows:

[macchuck:~] chuck% traceroute  hostname 

Restrict access to my computer so others can get files I make available to them?

System Preferences → Sharing → File & Web panel; click on the Start button in the File Sharing section to give others access to your Public folder (/Users/username/Public).

The Public folder is read-only, which means that other people can only view or copy files from that directory; they cannot write files to it.

Where can my coworkers place files on my computer without getting access to the rest of my system?

With file sharing turned on, people can place files, folders, or even applications in your Drop Box, located within the Public folder (/Users/username/Public/Drop Box).

View what's inside someone else's iDisk Public folder?

Go → Connect to Server; at the bottom of the dialog box, type http://idisk.mac.com/membername/Public. Click Connect, or press Return; the Public iDisk image will mount on your Desktop.

Not all iDisk Public folders are created equal. An iDisk's owner can choose to make their Public folder read-only, or read-write (which allows others to place files in their Public folder). The Public folder can also be password protected, which means you need to enter a password before you can mount the Public folder.

Connect to a networked drive?

Finder → Go → Connect to Server (-K)

If the server to which you want to connect is part of your local area network (LAN), click on the Local icon in the left pane, and select the server name to the right. If the server is part of your local AppleTalk network, click on the AppleTalk Network icon in the left pane, and select the server or computer name to the right.

Connect to an SMB share?

Finder → Go → Connect to Server (-K)

If you need to connect to a Windows server, you must specify the Address in the text box as follows:


After clicking the Connect button, you will be asked to supply the domain to which you wish to connect as well as your username and password. You can speed up this process by supplying the domain and your username, as follows:


Where domain is the NT domain name; username is the name you use to connect to that domain; and hostname and sharename are the server name and shared directory that you have or want to access. Now when you click on the Connect button, all you will need to enter is your password (if one is required), and the networked drive will appear on your Desktop.

Before pressing the Connect button, press the Add to Favorites button first. This will save you time in the future if you frequently need to connect to the same drive, since you won't have to enter that address again .

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