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How to Find Your Own IP Address

Contents:

• Windows 2000, XP, or Vista
• Mac OS X
• Unix
• Via a web tool

Windows 2000, XP, or Vista

By default, Windows Vista is not set to show the Run command from the Start menu. You can change this in Vista Preferences or use Search to find the Run command.

To use the Search command in Windows Vista type:

1. From the Start menu click Search
2. Type Run
3. Double-click the Run shortcut

Once you have the Run command window start with step 2 below

1. From the Start menu select Run
2. Type cmd in the Run window field
3. Type ipconfig /all

Macintosh OS X

1. Open the System Preferences application
2. Click the Network icon
3. Select Network Status from the Show drop down field
4. Look for the Built-in Ethernet item, or other applicable network interface
5. Look for the IP address that is shown to the right

Unix

• In a terminal window, use the command

  ifconfig -a

  or, if this is not found use,

  /usr/sbin/ifconfig -a

  You may get a variety of responses. The one you want is one that includes the words "BROADCAST" and "inet," where "inet" introduces the IP address -- e.g.,

  le0: flags=<863UP,BROADCAST,NOTRAILERS,RUNNING,MULTICAST> mtu 1500 inet 128.8.10.95 netmask ffffff00 broadcast 128.8.10.255

Using the Web

Use this webpage, provided by Networking and Telecommunications Services (NTS), to give you your hostname and IP address: https://nts-service.umd.edu/