System and method for updating a dynamic domain name server
First Claim
1. A synchronized dynamic domain name system (DDNS) comprising:
- a first master DDNS server device connected to a first master datastore, wherein the first master datastore comprises domain name information and wherein the first master datastore is configured to receive updated domain name information;
a second master DDNS server device connected to a second master datastore, wherein the second master datastore comprises the domain name information, wherein the second master data store is configured to receive updated domain name information and wherein the first and second DDNS server devices share an IP address;
wherein the first master datastore comprises instructions for receiving first updated domain name information and sending the first updated domain name information to the second master datastore; and
wherein the second master datastore further comprises instructions for receiving second updated domain name information and sending the second updated domain name information to the first master datastore;
a first monitor connected to the first master DNS server and the network, wherein the first monitor comprises instructions for;
determining whether the first master server is available to respond to a request for domain name information; and
generating the availability information based on the availability of the first master DNS server;
a second monitor connected to the second master DNS server and the network, wherein the second monitor comprises instructions for;
determining whether the second master DNS server is available to respond to the request for domain name information; and
generating the availability information based on the availability of the second masterDNS server; and
a network accessible to the first and second master DDNS server devices, wherein the network comprises routers comprising instructions for;
receiving availability information from the first and second monitors relating to the availability of the first and second master DDNS server devices to receive packets;
receiving requests for domain name information;
routing packets comprising the request for domain name information to a master DDNS server device selected from an available one of the first and second master DDNS server devices using a shared IP address based on the availability information;
wherein the first master DDNS server device further comprises;
the shared IP address;
instructions for receiving the request for domain name information;
instructions for retrieving the requested domain name information from the first master datastore; and
instructions for generating a response to the request for domain name information, wherein the response comprises the requested domain name information, andwherein the second master DDNS server device comprises;
the shared IP address;
instructions for receiving the request for domain name information from the router;
instructions for retrieving the requested domain name information from the second master datastore; and
instructions for generating a response to the request for domain name information, wherein the response comprises the requested domain name information.
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Accused Products
Abstract
A system and method for synchronizing a dynamic domain name system (DDNS). Updated domain name information is received at a first datastore and sent to a second datastore. Updated domain name information is also received at the second datastore and sent to the first datastore. Either datastore determines whether the other datastore is available to receive the updated domain name information. If the receiving datastore is not available, the sending datastore waits until the receiving datastore is available. The first datastore is connected to a first master DNS server and the second datastore is connected to a second master DNS server. The first and second master servers share an IP address. When a request for domain name information is received at a router, the request is sent to a master DNS server selected from the first and second master DNS servers using the shared IP address. A master DNS server is selected to respond to the DNS request only if that master server is able to respond to the request. The requested domain name information is retrieved from the datastore connected to the selected DNS server and a response to the request for domain name information is generated.
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Citations
18 Claims
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1. A synchronized dynamic domain name system (DDNS) comprising:
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a first master DDNS server device connected to a first master datastore, wherein the first master datastore comprises domain name information and wherein the first master datastore is configured to receive updated domain name information; a second master DDNS server device connected to a second master datastore, wherein the second master datastore comprises the domain name information, wherein the second master data store is configured to receive updated domain name information and wherein the first and second DDNS server devices share an IP address; wherein the first master datastore comprises instructions for receiving first updated domain name information and sending the first updated domain name information to the second master datastore; and wherein the second master datastore further comprises instructions for receiving second updated domain name information and sending the second updated domain name information to the first master datastore; a first monitor connected to the first master DNS server and the network, wherein the first monitor comprises instructions for; determining whether the first master server is available to respond to a request for domain name information; and generating the availability information based on the availability of the first master DNS server; a second monitor connected to the second master DNS server and the network, wherein the second monitor comprises instructions for; determining whether the second master DNS server is available to respond to the request for domain name information; and generating the availability information based on the availability of the second master DNS server; and a network accessible to the first and second master DDNS server devices, wherein the network comprises routers comprising instructions for; receiving availability information from the first and second monitors relating to the availability of the first and second master DDNS server devices to receive packets; receiving requests for domain name information; routing packets comprising the request for domain name information to a master DDNS server device selected from an available one of the first and second master DDNS server devices using a shared IP address based on the availability information; wherein the first master DDNS server device further comprises; the shared IP address; instructions for receiving the request for domain name information; instructions for retrieving the requested domain name information from the first master datastore; and instructions for generating a response to the request for domain name information, wherein the response comprises the requested domain name information, and wherein the second master DDNS server device comprises; the shared IP address; instructions for receiving the request for domain name information from the router; instructions for retrieving the requested domain name information from the second master datastore; and instructions for generating a response to the request for domain name information, wherein the response comprises the requested domain name information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for synchronizing a dynamic domain name system (DDNS) comprising:
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receiving, at a first master datastore, first updated domain name information; sending, from the first master datastore, the first updated domain name information to a second master datastore; receiving, at the second master datastore, second updated domain name information; sending, from the second master datastore, the second updated domain name information to the first master datastore; receiving, at a network router, packets comprising a request for domain name information; determining, at a first monitoring device, whether the first master server is available to respond to a request for domain name information; reporting, from the first monitoring device, the availability of the first master DNS server to the network router; determining, at a second monitoring device, whether the second master server is available to respond to a request for domain name information; reporting, from the second monitoring device, the availability of the second master DNS server to the network router; determining, at the network router, whether at least one of the first and second master servers is available to respond to the request for domain name information, wherein the first and second master servers share an IP address, wherein the first master DDNS server device is connected to the first master datastore, and wherein the second master DDNS server device is connected to the second master datastore; routing, to a master DDNS server device selected from an available one of the first and second master DDNS server devices, the packets comprising the request for domain name information using the shared IP address; retrieving, from the master datastore connected to the selected master DDNS server device, the requested domain name information; and generating, at the selected master DDNS server device, a response to the request for domain name information, wherein the response comprises the requested domain name information. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification