firewall

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fire·wall

(fīr'wawl)
1. A special building material that is placed in walls between buildings or rooms to prevent the spread of fire.
2. A software program designed to prevent unauthorized persons from accessing a computer system.

firewall

A set of programs that protects the resources of a private computer network from users of other networks. It screens the messages that attempt to enter or leave the network and permits or denies access to outside users based on pre-programmed rules.
References in periodicals archive ?
The message appears to have originated at the last proxy server.
1 can be either integrated with a web/FTP proxy server, such as Blue Coat or Squid, through an ICAP-based connector, or deployed in simple pass-by mode - a plug and play deployment which requires no change to existing network configurations.
by adding general-purpose servers with proxy server software--they increase hardware, software and administrative costs proportionally and have little power to improve the productivity of even the most competent and dedicated IT staff.
The technology is pretty simple, when an NMCI user clicks on a link; data goes from his workstation to an NMCI switch point (in San Diego, Hawaii or Norfolk) back to the proxy server at China Lake and prompts him for a username and password.
The software virtual machine can support restartable instructions on the proxy server to ensure that, when resumed, a previously blocked context will continue with the instruction that had previously been blocked or suspended.
The primary issue was the way the proxy server handled the need for exceptions to the overall Web usage policy.
With the second method, a backup agent and scripting interaction can be used so file-level backups of the guest can be performed on the VCB proxy server.
This leads to the centralisation of all web resource requests through the proxy server instead of each of the individual back end servers, according to the company.
Netscape's server was selected because, at the time of the NCR evaluation, Microsoft Proxy server used point-to-point tunneling protocol.
Netegrity's new reverse proxy server agent for Apache will enable companies to integrate their proxy servers with SiteMinder's policy server to centrally manage users and their access to e-commerce applications and services.
New Detection System Monitors User Behavior and Addresses Rise in Anonymous Proxy Servers
The complementary Helmsman User Agents, Applications Services Broker and Helmsman Design Deck software components are being used to tailor the Proxy Server network components for Service deployment.