firewall

Digital traffic controller

A firewall is a barrier designed to prevent the spread of fire—originally a physical wall in buildings or vehicles.

In computing, a firewall is software or hardware that monitors network traffic and blocks unauthorized access: The company's firewall detected the intrusion attempt.

Figuratively, any protective barrier between things: a firewall between church and state.

software

Norton

Security software brand

endpoint · configuration · settings · permissions · antivirus

network

packet

Small sealed container

  • portDocking place for ships
  • routerPacket-forwarding network device
  • switchCircuit-breaking toggle device

gateway · proxy · NAT · DMZ · subnet · traffic · TCP · UDP · IP · inbound

security

intrusion

Unauthorized entry into space

attack · threat · vulnerability · exploit · DDoS · ransomware · spyware · zero-day · botnet · cyberattack

barrier

partition

Barrier separating spaces

fire-resistant · drywall · concrete · steel · containment · smoke · sprinkler · safety · construction · architectural

filtering

stateful

Retains information across operations

ports · protocols · content · URL · spam · phishing · proxy · traffic · allow · deny

hardware

appliance

Powered household device

  • CiscoNetworking equipment manufacturer
  • JuniperFeminine given name
  • UTMCartographic coordinate system

rack · datacenter · enterprise · throughput · dedicated · inline

Categories
Opposites
network access control

firewallopen port

Unrestricted maritime entry point

gateway · open access · backdoor · passthrough · bridge

security posture

firewallvulnerability

Openness to harm

security hole · attack vector · open port · backdoor · exploit

barrier function (physical/metaphorical)

firewallopening

Gap or start

gap · breach · conduit · channel · passage

Phrases
Family

firewalls, firewalled, firewalling

Familiarity
Top 50,000
Profile
Known to kids · Used worldwide · Timeless · Rated G