Importance

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Abstract

A remote operation system is disclosed which is used with a network environment in which a unit that provides remote operation services through networks and a unit that receives the services are each safeguarded by a firewall (or 'each equipped with a firewall for') from an external network. The remote operation service receiving unit sets up a connection A with the firewall installed on the remote operation service providing unit side and transmits security check information to that firewall. The firewall checks this security check information and then sets up a connection B with the remote operation service providing unit via its associated internal network when it is determined that the security check information has been sent from a contract user unit. Thereby, information used for remote operation can be transmitted between the two units over a logical path composed of the connections A and B.

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First Claim