Mac OS X: How to Access the Internet Through a Firewall

If your computer is connected to a local network that is protected from the Internet by a firewall, you may need to specify proxy servers or select FTP passive mode (PASV) to access some Internet sites.

If your computer is connected to a local network that is protected from the Internet by a firewall, you may need to specify proxy servers or select FTP passive mode (PASV) to access some Internet sites.

Open System Preferences and click Network. Choose a location and configuration, then click the Proxies tab.

If you're not sure which proxy servers to use, ask your network administrator.

Note: The information is this document comes from Mac OS X Help, the help system included with your computer. It is based on Mac OS X 10.1.2. If a different version is installed on your computer, choose Mac Help from the Help menu. Updated and expanded information may also be available in other Knowledge Base documents.