Firewall

A firewall is a gateway that limits access between networks in accordance with local security policy.

Your computer needs a firewall to protect it from unwanted and unsolicited network traffic to ensure the privacy of your personal information, prevent backdoor programs from monitoring your keystrokes, etc.

Windows:

• Windows Vista - Has a built-in firewall. Detailed Instructions
• Windows XP - Has a built-in firewall. Detailed Instructions
• Windows 2000 - Use McAfee Internet Security Suite or Norton Personal Firewall

Macintosh:

• Mac OS X 10.5 or later - Has a built-in firewall. Detailed Instructions
• Mac OS X 10.4 or earlier - Has a built-in firewall. Detailed Instructions

PDA:

• While firewalls for PDA's are not currently required for connection to the UCSD Network, UCSD ACS recommends Airscanner Mobile Firewall (Free)

For more information, visit: http://www-ono.ucsd.edu/documentation/firewall/