Method and apparatus for updating a domain name server
First Claim
Patent Images
1. A computer implemented method for updating a domain name server, the computer implemented method comprising:
- detecting, by a content server, a failure of a first network interface of a plurality of network interfaces of the content server, wherein detecting the failure comprises receiving an interrupt signal from the first network interface, the interrupt signal indicating a hardware failure;
determining, by the content server, an IP address associated with the first network interface, in response to detecting the failure;
sending, by the content server, a first domain name server update to a domain name server to notify the domain name server that the IP address is unreachable, in response to determining the IP address associated with the first network interface;
determining, by the content server, that the first network interface is repaired, wherein determining that the first network interface is repaired comprises determining that the first network interface is operable for connecting a client to the content server; and
sending, by the content server, a second domain name server update to the domain name server indicating that the IP address is reachable, in response to determining that the first network interface is repaired, wherein the second domain name server update includes the IP address.
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Abstract
A computer implemented method, apparatus, system, and computer usable program code for updating a domain name server. In response to detecting a failed network interface in a plurality of network interfaces on a content server, the content server identifies an IP address for the failed network interface. The content server notifies a domain name server that the IP address for the failed network interface is an unreachable IP address. The domain name server does not provide the unreachable IP address to a querying client.
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Citations
9 Claims
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1. A computer implemented method for updating a domain name server, the computer implemented method comprising:
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detecting, by a content server, a failure of a first network interface of a plurality of network interfaces of the content server, wherein detecting the failure comprises receiving an interrupt signal from the first network interface, the interrupt signal indicating a hardware failure; determining, by the content server, an IP address associated with the first network interface, in response to detecting the failure; sending, by the content server, a first domain name server update to a domain name server to notify the domain name server that the IP address is unreachable, in response to determining the IP address associated with the first network interface; determining, by the content server, that the first network interface is repaired, wherein determining that the first network interface is repaired comprises determining that the first network interface is operable for connecting a client to the content server; and sending, by the content server, a second domain name server update to the domain name server indicating that the IP address is reachable, in response to determining that the first network interface is repaired, wherein the second domain name server update includes the IP address. - View Dependent Claims (2, 3, 4, 5)
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6. An apparatus comprising:
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a content server comprising; a storage device connected to a bus, wherein the storage device contains a computer usable program product; and a processor unit, wherein the processor unit executes computer usable program code to; detect, by the content server, a failure of a first network interface of a plurality of network interfaces of the content server, wherein detecting the failure comprises receiving an interrupt signal from the first network interface, the interrupt signal indicating a hardware failure; determine, by the content server, an IP address associated with the first network interface, in response to detecting the failure; send, by the content server, a first domain name server update to a domain name server to notify the domain name server that the IP address is unreachable, in response to determining the IP address associated with the first network interface; send a second domain name server update to the domain name server indicating that the IP address is reachable in response to determining, by the content server, that the first network interface is repaired, wherein determining that the first network interface is repaired comprises determining that the first network interface is operable for connecting a client to the content server, and wherein the second domain name server update includes the IP address.
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7. A system for updating a domain name server, the system comprising:
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a content server, wherein the content server determines an IP address for a first network interface of a plurality of network interfaces of the content server in response to detecting, by the content server, a failure of the first network interface, wherein the content server notifies a domain name server that the IP address is unreachable in response to determining the IP address for the first network interface, wherein detecting the failure comprises receiving an interrupt signal from the first network interface, the interrupt signal indicating a hardware failure, wherein the content server sends a domain name server update to the domain name server indicating that the IP address is reachable in response to determining, by the content server, that the first network interface is repaired, wherein determining that the first network interface is repaired comprises determining that the first network interface is operable for connecting a client to the content server, wherein the domain name server update includes the IP address. - View Dependent Claims (8)
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9. A computer program product comprising:
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a non-transitory computer storage medium including computer program code for updating a domain name server, said computer program product comprising; computer program code for determining, by a content server, an IP address for a first network interface of a plurality of network interfaces of the content server in response to detecting, by the content server, a failure of the first network interface, wherein detecting the failure comprises receiving an interrupt signal from the first network interface, the interrupt signal indicating a hardware failure; computer program code for sending, by the content server, a first domain name server update to a domain name server to notify the domain name server that the IP address is unreachable, in response to determining the IP address associated with the first network interface; computer program code for sending, by the content server, a second domain name server update to the domain name server indicating that the IP address is reachable, in response to determining, by the content server, that the first network interface is repaired, wherein determining that the first network interface is repaired comprises determining that the first network interface is operable for connecting a client to the content server, and wherein the second domain name server update includes the IP address.
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Specification