1. Home
  2. IT
  3. Security of information systems
  4. Firewalls. The pocketknife for enforcing computer security

  5. Introduction to firewalls

Article | REF: TE7550 V2

Firewalls. The pocketknife for enforcing computer security

Author: Maryline LAURENT

Publication date: October 10, 2017, Review date: January 3, 2024

You do not have access to this resource.
Click here to request your free trial access!

Already subscribed? Log in!

Français

1. Introduction to firewalls

A firewall (firewall, security gateway ) is a set of components placed between two networks with the following properties (properties largely extracted from ):

  • all traffic between the two networks must pass through the firewall ;

  • only traffic explicitly authorized by the locally applied security policy is allowed to pass through the firewall ;

  • Traffic entering the sensitive network must not pass through the firewall without being inspected, in order to "break" the flow;

    • ...
You do not have access to this resource.

Exclusive to subscribers. 97% yet to be discovered!

You do not have access to this resource.
Click here to request your free trial access!

Already subscribed? Log in!

The Ultimate Scientific and Technical Reference

A Comprehensive Knowledge Base, with over 1,200 authors and 100 scientific advisors
+ More than 10,000 articles and 1,000 how-to sheets, over 800 new or updated articles every year
From design to prototyping, right through to industrialization, the reference for securing the development of your industrial projects

This article is included in

Security of information systems

This offer includes:

Knowledge Base

Updated and enriched with articles validated by our scientific committees

Services

A set of exclusive tools to complement the resources

Practical Path

Operational and didactic, to guarantee the acquisition of transversal skills

Doc & Quiz

Interactive articles with quizzes, for constructive reading

Subscribe now!

Ongoing reading
Introduction to firewalls
Outline