Access control lists (ACL)
-allow or disallow traffic
-list permissions
Segmenting the network
-physical - devices
-logical - VLANS
-virtual - virtual networks
Application hash
-only allow applicants with this unique identifier
Certificate
Allow digitally signed apps
Path
Only run apps in these folders
Network zones
segments of a network that are defined based on security requirements, access controls, and the types of devices or systems contained within them