DNS proxy that automatically clears IP addresses in firewall according to DNS queries of cleared domain names

    公开(公告)号:US11706197B2

    公开(公告)日:2023-07-18

    申请号:US17394170

    申请日:2021-08-04

    Inventor: David T. Ong

    Abstract: A walled garden system includes a firewall controlling access between a first network and a second network at least by allowing connection requests originating from a user device on the first network to a destination IP address on the second network in response to determining that the destination IP address matches a cleared IP address on a cleared IP addresses list. A controller receives a domain name service (DNS) reply from a DNS server on the second network, and determines whether a domain name specified within the DNS reply matches a cleared domain name on a cleared domain names list. In response to determining that the domain name specified within the DNS reply matches the cleared domain name on the cleared domain names list, the controller adds a resolved IP address specified in the DNS reply to the cleared IP addresses list as a new cleared IP address.

    DNS PROXY THAT AUTOMATICALLY CLEARS IP ADDRESSES IN FIREWALL ACCORDING TO DNS QUERIES OF CLEARED DOMAIN NAMES

    公开(公告)号:US20210367924A1

    公开(公告)日:2021-11-25

    申请号:US17394170

    申请日:2021-08-04

    Inventor: David T. Ong

    Abstract: A walled garden system includes a firewall controlling access between a first network and a second network at least by allowing connection requests originating from a user device on the first network to a destination IP address on the second network in response to determining that the destination IP address matches a cleared IP address on a cleared IP addresses list. A controller receives a domain name service (DNS) reply from a DNS server on the second network, and determines whether a domain name specified within the DNS reply matches a cleared domain name on a cleared domain names list. In response to determining that the domain name specified within the DNS reply matches the cleared domain name on the cleared domain names list, the controller adds a resolved IP address specified in the DNS reply to the cleared IP addresses list as a new cleared IP address.

    INTERFACE GATEWAY AND METHOD OF FACILITATING COMMUNICATION BETWEEN A PROPERTY MANAGEMENT SYSTEM AND A GUEST SERVICE DEVICE

    公开(公告)号:US20200053189A1

    公开(公告)日:2020-02-13

    申请号:US16659863

    申请日:2019-10-22

    Abstract: An interface gateway facilitates communication between a first device and a second device serving a hospitality establishment. The first device is one of a property management system (PMS) and a guest service device, and the second device is the other of the property management system (PMS) and the guest service device. One or more communication ports perform data communications with the first device and the second device. One or more processors receive a message from the first device, determine that the message is in a first format, determine that the message is applicable to the second device, determine that the second device supports a second format, convert the message to the second format, store the message in a transmit queue with an indication of whether a confirmation reply is expected from the second device, and send the message in the second format to the second device.

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