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firewall

firewall

62 3.9
A system that blocks unwanted access to a private computer network
  • noun
  • /ˈfaɪərˌwɔl/
  • Specialized
translation icon : cortafuegos
  • An entire cottage industry has emerged with the goal of finding and creating holes in porous firewalls.
  • install a firewall
  • firewall logs
  • software firewall

And Starlink is potentially that great China bypasser, that great China firewall bypasser.

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Examples

  • Some routers come with firewall capability, but it may only be rudimentary.

    Academic text (2009)
  • Installing a firewall is like hiding your computer from everyone on the Internet.

    Academic text (2006)
  • Chief, I can get through this firewall but it's gonna take a while.

  • And now if you look at our firewall status, it's denying to that IP address.

  • Despite these threats, 10 percent of law firms still don't have a firewall to protect against attacks.

    Academic text (2006)
  • With this networking system, any computer inside the plant's firewall may access each PLC using its unique IP addresses.

    Academic text (1998)
  • At a minimum, law firms should have firewalls and virus-scanning software.

    Academic text (2006)
  • For Windows XP SP2 users, check Security Center under Control Panels to make sure your firewall is turned on.

    Academic text (2006)
  • The owners hid behind the firewall of anonymity to attack the regime without fear of physical retribution.

    Academic text (2009)
  • The company installed a new firewall to protect its network from cyber attacks.

Synonyms

security system
vsfirewall
  • Specialized
4 3.5

A set of programs and rules that control access to computer networks

is a specific hardware and software barrier that blocks unauthorized access to a private network

Compounds

5.6

A government system in China that blocks websites and controls what people see online

How Secure

firewall
  • Specialized
62 3.9
closing off
3 5.2
filter
139 2.8
intranet
  • Specialized
8 5.1

Surface Forms

firewall singular
firewalls plural

Morphology

firewall = fire + wall (semi-transparent) = fire + wall

The compound suggests a protective barrier against danger, but the computing sense is metaphorical rather than fully literal.

Etymology

The computer firewall borrows its name from that protective wall. Like a real firewall, it acts as a 'barrier' to keep out bad data or people trying to get into your computer or company network.