SYSTEM AND METHOD FOR UPDATING A DYNAMIC DOMAIN NAME SERVER
First Claim
1. A synchronized dynamic domain name system (DNS) comprising:
- a first master DNS server connected to a first datastore, wherein the first datastore comprises domain name information;
a second master DNS server connected to a second datastore, wherein the second datastore comprises the domain name information, and wherein the first and second DNS servers share an IP address;
a network accessible to the first and second master DNS servers, wherein the network comprises routers comprising instructions for;
receiving availability information relating the availability of the first and second master DNS to receive packets;
routing packets to an available one of the first and second master DNS servers using a shared IP address based on the availability information;
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
reporting the availability of the first master DNS server to the network routers;
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
reporting the availability of the second master DNS server to the network routers, and wherein the first datastore comprises instructions for;
receiving first updated domain name information; and
sending the first updated domain name information to the second datastore,wherein the second datastore further comprises instructions for;
receiving second updated domain name information; and
sending the second updated domain name information to the first datastore,wherein the first master DNS server 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 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 DNS server 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 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.
23 Citations
18 Claims
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1. A synchronized dynamic domain name system (DNS) comprising:
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a first master DNS server connected to a first datastore, wherein the first datastore comprises domain name information; a second master DNS server connected to a second datastore, wherein the second datastore comprises the domain name information, and wherein the first and second DNS servers share an IP address; a network accessible to the first and second master DNS servers, wherein the network comprises routers comprising instructions for; receiving availability information relating the availability of the first and second master DNS to receive packets; routing packets to an available one of the first and second master DNS servers using a shared IP address based on the availability information; 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 reporting the availability of the first master DNS server to the network routers; 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 reporting the availability of the second master DNS server to the network routers, and wherein the first datastore comprises instructions for; receiving first updated domain name information; and sending the first updated domain name information to the second datastore, wherein the second datastore further comprises instructions for; receiving second updated domain name information; and sending the second updated domain name information to the first datastore, wherein the first master DNS server 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 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 DNS server 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 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 (DNS) comprising:
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receiving first updated domain name information at a first datastore; sending the first updated domain name information from the first datastore to a second datastore; receiving second updated domain name information at the second datastore; sending the second updated domain name information from the second datastore to the first datastore; receiving packets comprising a request for domain name information at a network router; determining whether at least one of first and second master servers are 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 DNS server is connected to a first datastore, and wherein the second master DNS server is connected to a second datastore; routing the packets comprising the request for domain name information to a master DNS server selected from an available one of the first and second master DNS servers using the shared IP address; retrieving the requested domain name information from the datastore connected to the selected master DNS server; and at the selected master DNS server, generating 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