Method for determining a delegation chain associated with a domain name resolution in a communication network
AssigneeOrange
InventorsFrédéric Fieau, Jesús Alberto Polo Garcia
Life of this patent
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Abstract
A redirection device and method, relating to identification of a data server capable of delivering content to a terminal, initiated by the transfer to a second name server of a second domain of a message for obtaining an identifier of the data server in the second domain received from the terminal. Following this transfer, the second name server sends a redirection message to a first domain, including a delegation chain including first data for redirection from the second domain to the first domain. The chain is updated recursively with the redirections between domains added by respective name servers until a name server is able to provide an identifier of the data server.
Claims17
A redirection method, relating to identification of a data server capable of delivering a content to a terminal, the method being implemented by a resolution server of a communication architecture, following a transfer, to a second name server of a second domain, of a message for obtaining an identifier of the data server in the second domain, received from the terminal, the method comprising:
- receiving, from the second name server, a message for redirection to a first domain, said redirection message including a delegation chain comprising a first datum for redirection from the second domain to the first domain,
- at least one step of transmitting, to a first name server of the first domain, a message for obtaining the identifier of the data server in the first domain, the message comprising the received delegation chain,
- at least one step of receiving, from the first name server, an instruction message comprising the delegation chain modified with an addition of a second redirection datum.
A method for modifying a delegation chain, relating to provision of an identifier of a data server, capable of delivering a content to a terminal, the method being implemented by a first name server of a first domain, and comprising:
- at least one step of receiving, from the resolution server, a message for obtaining an identifier of the data server in the first domain, the message comprising a delegation chain including a first datum for redirection from a second domain to the first domain,
- at least one step of modifying the received delegation chain by an addition of a second redirection datum, and
- at least one step of transmitting, to the resolution server, an instruction message comprising the modified delegation chain.
A redirection device, relating to identification of a data server capable of delivering a content to a terminal, in a resolution server of a communication architecture, comprising:
- a processor;
- and
- a non-transitory computer-readable medium comprising instructions stored thereon which when executed by the processor configure the redirection device to:
- transfer, to a second name server of a second domain, a message for obtaining an identifier of the data server in the second domain, received from the terminal,
- receive, from the second name server, a message for redirection to a first domain, said redirection message including a delegation chain comprising a first datum for redirection from the second domain to the first domain,
- receive, from a first name server, at least one instruction message comprising the delegation chain modified with an addition of a second redirection datum, and
- transmit, to the first name server, at least one message for obtaining an identifier of the data server in the first domain, the message comprising the received delegation chain.
A device for modifying a delegation chain relating to provision of an identifier of a data server, capable of delivering a content to a terminal, implemented in a first name server of a first domain, and comprising:
- a processor;
- and
- a non-transitory computer-readable medium comprising instructions stored thereon which when executed by the processor configure the redirection device to:
- receive, from a resolution server, at least one message for obtaining an identifier of the data server in the first domain, the message comprising a delegation chain including a first datum for redirection from a second domain to the first domain,
- at least once modify the received delegation chain by an addition of a second redirection datum, and
- transmit, to the resolution server, at least one instruction message comprising the modified delegation chain.
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A non-transitory storage medium storing instructions that can be read by a redirection device, which when executed by a processor of the redirection device, configure the redirection device to perform a method relating to identification of a data server capable of delivering a content to a terminal, in a resolution server of a communication architecture, the method comprising:
- transferring, to a second name server of a second domain, a message for obtaining an identifier of the data server in the second domain, received from the terminal,
- receiving, from the second name server, a message for redirection to a first domain, said redirection message including a delegation chain comprising a first datum for redirection from the second domain to the first domain,
- receiving, from a first name server, at least one instruction message comprising the delegation chain modified with an addition of a second redirection datum, and
- transmitting, to the first name server, at least one message for obtaining an identifier of the data server in the first domain, the message comprising the received delegation chain.
Dependencies are inferred from the claim text.