A communication apparatus and method

A communication apparatus 100 for making a communication connection between a first communication device 110 and a second communication device 104, in which the first communication device 110 wishes to make a communication connection with the second communication device 104. The second communication...

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Bibliographische Detailangaben
1. Verfasser: STEPHEN RUSSELL GEORGE DAKIN
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A communication apparatus 100 for making a communication connection between a first communication device 110 and a second communication device 104, in which the first communication device 110 wishes to make a communication connection with the second communication device 104. The second communication device 104 comprises transmitting means 202 for transmitting a request for communication connection. As shown web servers 112 requiring access to a database server 102 protected be a firewall 106 send requests to a port of a client side redirector or listening device 110 which when subsequently polled on a different one of its ports, by a server side redirector 104 repeatedly trying to open a communication connection, accepts the connection. The connection is thus effectively initiated from the server side and the server port used can be regularly changed to make it harder for a hacker to correctly focus an attack. The invention is particularly applicable where remote office and home workers require computer support services from a corporate headquarters e.g. via GPRS (General Packet Radio Service).