[특허]Method and system for optimally selecting a web firewall in a TCB/IP network

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G06F-015/173
출원번호	US-0515780 (2000-02-29)
우선권정보	EP-0480011 (1999-03-05)
발명자 / 주소	Daude, Olivier Forth, Andrew Hericourt, Olivier
출원인 / 주소	International Business Machines Corporation
대리인 / 주소	Yee &
인용정보	피인용 횟수 : 33 인용 특허 : 9

초록 ▼

The present invention relies on dynamic autoproxy configuration and more particularly to a method and system for selecting a Proxy/Socks Server according to some response time and availability criteria. It rests on a dynamic autoproxy mechanism using availability and response time probes. It relies

The present invention relies on dynamic autoproxy configuration and more particularly to a method and system for selecting a Proxy/Socks Server according to some response time and availability criteria. It rests on a dynamic autoproxy mechanism using availability and response time probes. It relies on probes retrieving well known HTML pages through each Proxy/Socks Server, measuring associated response time, detecting Proxy/Socks failures and degradation of response time. It also uses a CGI (Common Gateway Interface) program for dynamically creating autoproxy code (in a preferred embodiment Javascript code) on an autoproxy URL (Universal resource locator) system for selecting said Proxy/Socks Server.

대표청구항 ▼

1. A method for dynamically selecting a firewall server for a web client, in particular a web browser, in a Transmission Control Protocol/Internet Protocol (TCP/IP) network comprising a plurality of firewall servers, said method comprising the steps of:measuring performance and availability of each

1. A method for dynamically selecting a firewall server for a web client, in particular a web browser, in a Transmission Control Protocol/Internet Protocol (TCP/IP) network comprising a plurality of firewall servers, said method comprising the steps of:measuring performance and availability of each firewall server using measurement probes, including measuring the total response time needed for retrieving from a web server known information, in particular one or a plurality of known web pages, through each firewall server and wherein the step of measuring the total response time comprises the further steps, for each firewall server, of: starting timing for a given one of said plurality of firewall servers; establishing a connection with the web server through said given one of said plurality of firewall servers; retrieving the one or a plurality of known web pages from the web server; checking that the retrieved one or plurality of web pages contain one or a plurality of known keywords; and stopping timing for said given one of said plurality of firewall servers; and dynamically selecting a firewall server according to the performance and availability measurements. 2. The method according to claim 1 wherein the step of measuring the performance of each firewall server using measurement probes comprises the further step of:comparing each firewall server said measured total response time with previous measured total response times; and, determining for each firewall the degradation or the amelioration of the measured total response time. 3. The method according to claim 1 wherein the step of measuring the availability of each firewall using measurement probes comprises the further step of:detecting failures on each firewall server; and, excluding firewall servers in failure from the step of selecting a firewall server. 4. The method of according to claim 1 wherein said firewall server is a proxy server or a socks server.5. The method according to claim 1 comprising the further steps of:processing performance and availability measurements from a single universal resource locator (URL) system; and, dynamically creating a configuration file based on the performance and availability measurements, preferably in the Javascript language, on said universal resource locator (URL) system for selecting said firewall server. 6. The method according to claim 5 wherein the step of dynamically creating a configuration file is processed by a common gateway interface (CGI) on said universal resource locator (URL) system.7. The method according to claim 1 wherein the step of selecting a firewall server comprises the further step of downloading the configuration file from a universal resource locator (URL) system to a web browser.8. The measured according to claim 7 wherein the steps of measuring performance and availability and of dynamically selecting a firewall server are periodically processed in the universal resource locator (URL) system and the configuration file created by the common gateway interface (CGI) is periodically downloaded to the web client.9. The method according to claim 1 comprising the further steps of:pre-selecting a backup firewall server in a background process; and, switching to said backup firewall server in case of failure of the selected firewall server. 10. The method according to claim 1 wherein the step of selecting a firewall server according to performance and availability measurements comprises the further step of selecting the firewall server according to the Internet Protocol (IP) address of the web browser.11. A program product for dynamically selecting a firewall server for a web client, in particular a web browser, in a Transition Control Protocol/Internet Protocol (TCP/IP) network comprising a plurality of firewall servers, said program product to be executed by a machine to perform a method comprising the steps of:programmatically measuring performance and availability of each firewall server using measurement probes, including programmatically measuring the total response time needed for retrieving from a web server known information, in particular one or a plurality of known web pages, through each firewall server and wherein the step of programmatically measuring the total response time comprises the further steps, for each of said plurality of firewalls, of: starting timing for a given one of said plurality of firewall servers; programmatically establishing a connection with the web server through said given one of said plurality of firewall servers; programmatically retrieving the one or a plurality of known web pages from the web server; programmatically checking that the retrieved one or plurality of web pages contain one or a plurality of known keywords; and stopping timing for said given one; and dynamically, using programmatic means, selecting a firewall server according to the performance and availability measurements. 12. The program product according to claim 11 wherein the step of measuring the performance of each firewall server using measurement probes comprises the further step of:programmatically comparing each firewall server said measured total response time with previous measured total response times; and, programmatically determining for each firewall the degradation or the amelioration of the measured response time. 13. The program product according to claim 11 wherein the step of measuring the availability of each firewall server using measurement probes comprises the further step of:programmatically detecting failures on each firewall server; and, programmatically excluding firewall servers in failure from the step of selecting a firewall server. 14. The program product according to claim 11 wherein said firewall server is a proxy server or a socks server.

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[미국특허] Method and system for optimally selecting a web firewall in a TCB/IP network 원문보기

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[미국특허] Method and system for optimally selecting a web firewall in a TCB/IP network 원문보기

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이 특허에 인용된 특허 (9) 인용/피인용 타임라인 분석

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