BE1014518A3 - Firewall, has web server connected via sand box computer and hub to LAN and via internet route and hub to internet - Google Patents

Firewall, has web server connected via sand box computer and hub to LAN and via internet route and hub to internet Download PDF

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Publication number
BE1014518A3
BE1014518A3 BE200000197A BE200000197A BE1014518A3 BE 1014518 A3 BE1014518 A3 BE 1014518A3 BE 200000197 A BE200000197 A BE 200000197A BE 200000197 A BE200000197 A BE 200000197A BE 1014518 A3 BE1014518 A3 BE 1014518A3
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BE
Grant status
Grant
Patent type
Prior art keywords
box
connected
sand
hub
internet
Prior art date
Application number
BE200000197A
Other languages
Dutch (nl)
Original Assignee
Beterams Frans
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Grant date

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/02Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls

Abstract

A web server is connected via a first hub to an internet router, which in turn is connected to the internet. A computer acting as a so-called sand box is connected to a LAN-WAN and via a second hub to the web server. The hubs and sand box computer are connected to a command box. The hubs are standard Ethernet hubs or repeaters. During the night or at any required time, a communication program is started on the communication port of the sand box computer connected to the command box in order to halt communication between the sand box and web server computers.

Description


    <Desc/Clms Page number 1> <Desc / CLMS Page number 1> 
 



    De onbreekbare firewall l. The unbreakable firewall l.  Introductie Deze schikking staat toe, dat de gegevens van een web server kunnen bijgewerkt worden zonder dat de mogelijkheid bestaat om vanuit het internet in te breken op de computers die zich op de lan bevinden. Introduction This arrangement permits that can update data from a web server without the possibility to break from the internet on the computers located on the LAN. 



   Dit systeem staat automatisatie toe. This system allows automation. 



   1. Principe schema De elementen sand box en web server zijn computers De elementen hub 1 en 2 zijn normale ethemet hubs (men kan ook repeaters gebruiken 2. Vereisten De sand box computer moet een com poort vrij hebben. 1. Schematic diagram elements sand box and Web server computers hub elements 1 and 2 are normal Ethernet hubs (you can also use repeaters 2. Requirements sand box computer must have a free com port. 



   Op deze poort wordt de command box aangesloten. This port is connected to the command box. 



   De sand box computer moet in staat zijn om programma's automatisch te starten en te stoppen. The sand box computer must be able to automatically start and stop programs. 



   In Windows NT kan men AT commando gebruiken, maar elk ander soortgelijke toepassing volstaat. In Windows NT can use AT commands, but any other similar application is sufficient. 



   3. Werking principe Het werk wordt normaal overdag voorbereid op de sand box computer. 3. Operation principle The work is in normal day in the sand box computer. 



   In normale positie is rel op en hub 1 krijgt 220 V AC. In normal position and riot hub one gets 220 V AC. 



   Gedurende de nacht (of wanneer nodig) wordt een communicatieprogramma opgestart op de com poort die aan de command box is aangesloten. During the night (or when necessary) a communication program is started on the com port that is connected to the command box. 



   Dit heeft tot gevolg dat DTR hoog wordt (12 V). This has the result that DTR is high (12 V). 



   Dit heeft tot gevolg dat re3 aantrekt omdat de transistor geleidend wordt. This attracts the effect of re3 because the transistor becomes conductive. 



   Dit heeft dan weer tot gevolg dat re2 aantrekt nadat re 1 afvalt. This, in turn, attracts a result, after re re2 1 elapses. 



   Hub2 krijgt nu 220 V AC en de communicatie tussen de sand box en de web server komt tot stand. Hub2 now gets 220 VAC and communication between the sand box and the web server is established. 



   Wanneer de gegevens overgebracht zijn wordt het communicatieprogramma gestopt en re3 valt af, rel trekt aan, en hub l krijgt terug 220 V AC. When the data is transferred to the communication program is stopped and re3 falls off, riot attracts, and hub l get back 220 V AC. 



   Door dit mechanisme is het onmogelijk dat rel en re2 gelijk op zijn, en er bestaat geen mogelijkheid tot inbraak op de LAN-WAN. Through this mechanism, it is impossible to riot and re 2 are equal, and there is no possibility to break the LAN-WAN. 



   4. Opties 4. 1 Als indicator gebruik ik slechts 2 leds die aanduiden welk relais opgetrokken 4. Options 4. If one indicator I use only two LEDs that indicate which relay raised 
  EMI1.1 EMI1.1 
  is. is. 



     4. 2 Het is denkbeeldig dat bij het gebruik van programma's op afstand zoals 4. 2, it is conceivable that in the use of programs such as a distance
 PC anywhere, de operator op afstand wil weten welk relais opgetrokken is. PC anywhere, the operator wants to know which relay is pulled away. 



   Men kan dit op eenvoudige manier verwezenlijken door gebruik te maken Van auxilary contacten op het re2 relais. One can achieve this in a simple manner by making use of auxilary contacts on the relay RE2. 



   In dit geval dient met TX en RX te verbinden over een contact ; In this case, connect to TX and RX of a contact;  RTS en CTS moeten hoog gemaakt worden door een ander contact. RTS and CTS must be high by another contact. 



   In dit geval kan de operator de caracters op zijn scherm zien verschijnen die hij intypt. In this case, the operator can see the characters appear on his screen, he typed. 



     4. 3 Een goedkopere oplossing met l relais en een dubbel wisselcontact is mogelijk. 4. 3 A cheaper solution with l relay and a dual change-over contact is possible. 

Claims (1)

  1. 5. conclusies In bescherming dient genomen : - De besturing van de netwerkverbindingen vanuit een computer. 5. Conclusions In protection should carried out: - The control of the network connections from a computer.
    - De omschakeling van de hubs via een com poort van de vorige computer. - The switching of the hubs via a com port of the previous computer.
    - De elektrische vergrendeling van de relais waardoor het onmogelijk word dat beide relais gelijktijdig aangetrokken worden. - The electrical locking of the relay so that the word that the two relays are pulled simultaneously impossible.
BE200000197A 2000-03-15 2000-03-15 Firewall, has web server connected via sand box computer and hub to LAN and via internet route and hub to internet BE1014518A3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BE200000197A BE1014518A3 (en) 2000-03-15 2000-03-15 Firewall, has web server connected via sand box computer and hub to LAN and via internet route and hub to internet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE200000197A BE1014518A3 (en) 2000-03-15 2000-03-15 Firewall, has web server connected via sand box computer and hub to LAN and via internet route and hub to internet

Publications (1)

Publication Number Publication Date
BE1014518A3 true BE1014518A3 (en) 2003-12-02

Family

ID=29588493

Family Applications (1)

Application Number Title Priority Date Filing Date
BE200000197A BE1014518A3 (en) 2000-03-15 2000-03-15 Firewall, has web server connected via sand box computer and hub to LAN and via internet route and hub to internet

Country Status (1)

Country Link
BE (1) BE1014518A3 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0762707A2 (en) * 1995-08-21 1997-03-12 Telia Ab Arrangement for network access via the telecommunication network by remote-controlled filter
US6026502A (en) * 1997-01-27 2000-02-15 Wakayama; Hironori Method and mechanism for preventing from invading of computer virus and/or hacker
DE19838253A1 (en) * 1998-08-22 2000-02-24 Inst Telematik Ev Data transfer between a pair of computers is controlled by a gating system that allows data to be checked in intermediate process before being transmitted

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0762707A2 (en) * 1995-08-21 1997-03-12 Telia Ab Arrangement for network access via the telecommunication network by remote-controlled filter
US6026502A (en) * 1997-01-27 2000-02-15 Wakayama; Hironori Method and mechanism for preventing from invading of computer virus and/or hacker
DE19838253A1 (en) * 1998-08-22 2000-02-24 Inst Telematik Ev Data transfer between a pair of computers is controlled by a gating system that allows data to be checked in intermediate process before being transmitted

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RE Lapsed

Effective date: 20050331

RE Lapsed

Effective date: 20050331