Network and wireless services connect computers to each other, enable file sharing on a common drive and allow you to connect to resources from home.  

eduroam (education roaming) is the secure worldwide federated network access service developed for the international research and education community.
Firewalls are physical appliances that allow or block traffic into and out of a secured network.
The Virtual Private Network (VPN) is a system which allows remote access to network resources normally only available at a UCSF location.
UCSF wireless networking services