- Open up the system preferences panel (this is in the task bar at the bottom of the screen)
- Click on the network icon

- Click on the Location box and select New Location...

- Create a name for the new location, such as School or BMS
- If this is your school account, select Built-In Ethernet, from the box just below the location box

- Click on the Proxies tab
- Check the boxes next to Secure Proxy and Web Proxy.
- Put in the proxy address and port. On the MCPS network, the proxy address is 198.82.201.19 and the port is 8002.
- In general you should not check the box next to "SOCKS".

- Click on apply changes
- When at home, if your network worked automatically before, simply the location back to automatic.