CN104468575A - Method and device for achieving domain name registration in local area network - Google Patents
Method and device for achieving domain name registration in local area network Download PDFInfo
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- CN104468575A CN104468575A CN201410745349.8A CN201410745349A CN104468575A CN 104468575 A CN104468575 A CN 104468575A CN 201410745349 A CN201410745349 A CN 201410745349A CN 104468575 A CN104468575 A CN 104468575A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/45—Network directories; Name-to-address mapping
- H04L61/4505—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols
- H04L61/4511—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols using domain name system [DNS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/30—Managing network names, e.g. use of aliases or nicknames
- H04L61/3015—Name registration, generation or assignment
- H04L61/302—Administrative registration, e.g. for domain names at internet corporation for assigned names and numbers [ICANN]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
- H04L61/5007—Internet protocol [IP] addresses
- H04L61/5014—Internet protocol [IP] addresses using dynamic host configuration protocol [DHCP] or bootstrap protocol [BOOTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Small-Scale Networks (AREA)
Abstract
Provided are a method and device for achieving domain name registration in a local area network. When a PC in the local area network has access to an inner server through a domain name, the PC will send a DNS query packet to a gateway at first, and the content included in the query packet is the domain name input through the PC; when the gateway receives the query packet, the query packet is sent to a DNS proxy function module in a system, the module searches a buffer cache stored by the module, the cache includes the domain name and an IP address corresponding to the domain name, the IP address is returned to the PC when found, and the PC carries out access according to the IP address; when the IP address is not found, a DNS proxy sends the query packet to a DNS server in an external network and waist for the DNS server to return a result, the query result is obtained, the DNS proxy sends the result, namely the IP address, to the PC, and meanwhile the result is stored in the cache to be used for the next query. The method and device are used for achieving domain name registration in the local area network.
Description
Technical field:
The present invention relates to the method and apparatus a kind of local area network (LAN) realizing domain name registration.
Background technology:
In network service application, gateway carrys out registered domain name by dynamic domain name server (hereinafter referred to as DDNS), then corresponding port mapping rule is set up, make the main frame on internet can by the server after domain name access gateway, like this for the user on internet, the outside ip address of gateway is transparent, even if the outside ip address change of gateway, user still normally can access gateway server below, obtains and serves accordingly.
And in local area network (LAN) after gateway, a certain main frame, wants to access identical server, can by keying in the IP address access of this server, if the function of gateway network enabled address transition winding (hereinafter referred to as NAT loopback), also can be conducted interviews by domain name.If accessed by the IP address of this server, when the IP address of server changes, the user of local area network (LAN) can only be checked and the new IP address of server then be conducted interviews, be inconvenient to like this operate by new IP address to it.If by domain name access, need the support of outside internet, need gateway to support NAT loopback function simultaneously, and when external network disconnects, then cannot carry out domain name mapping.Usually inner at local area network (LAN), also can not configure dns server separately.
Summary of the invention:
The local area network (LAN) that the object of this invention is to provide a kind of domain name mapping achieved in local area network (LAN) realizes the method and apparatus of domain name registration.
Above-mentioned object is realized by following technical scheme:
Local area network (LAN) realizes a method for domain name registration, when in local area network (LAN), PC PC passes through the server of domain name access inside, first PC can send domain name system DNS query bag to gateway, and the content comprised in this inquiry packet is the domain name that PC keys in; When gateway receives this inquiry packet, the domain name system this inquiry packet being sent to internal system acts on behalf of DNS proxy functional module, first this module searches for the cache list Cache that oneself is preserved, the IP address of domain name and correspondence thereof is contain in Cache, inquire, this IP address is returned to PC, and PC conducts interviews according to this IP address again; Or search and can send inquiry packet by the dns server externally in network less than, DNS proxy, wait for that dns server returns results, obtain Query Result, this result and IP address are returned to PC by DNS proxy, are saved in Cache by this result simultaneously, for inquiring about next time.
Described local area network (LAN) realizes the method for domain name registration, external network disconnects, DNS query failure, and PC cannot pass through domain name access server; In the Cache of DNS proxy module, add one group of entry, i.e. the domain name of server and the IP address of correspondence thereof; DNS proxy module is when inquiring about, and search this entry, return to correct IP address and be given to PC, PC normally has access to server.
Described local area network (LAN) realizes the method for domain name registration, the IP address of main frame is from dynamic Host Configuration Protocol server DHCP Server Dynamic Acquisition, and the entry in Cache needs dynamic interpolation; At DHCP Server when giving host assignment address, this IP address is joined in Cache together with domain name; Have a lot of main frame to obtain IP address dynamic in local area network (LAN), gateway knows which main frame needs registered domain name; The unique identification of a main frame is its MAC Address; DHCP Server judges whether to need to add Cache entry according to this MAC Address, is this host registration local area network (LAN) domain name; Process respectively according to the difference that LAN server is dynamic obtaining IP address or appointment static ip address.
Described local area network (LAN) realizes the method for domain name registration, add the module Local DNS Register being used for processing local area network (LAN) domain name registration in a gateway; The domain name of main frame, MAC Address/IP address are sent in this Local DNS Register module by graphic user interface GUI by user; What user was submitted to by GUI is domain name and MAC Address, and Local DNSRegister first inquires about IP address corresponding to this MAC Address to DHCP Server, after successful inquiring, this IP address is sent to DNS proxy process together with domain name; What user was submitted to by GUI is IP address and domain name, and DNS proxy process is directly mail in IP address and domain name by Local DNS Register.
Described local area network (LAN) realizes the method for domain name registration, first main frame dynamic IP address allocation,
1. the MAC Address of main frame and domain name are sent to inner DNS Registering modules Local DNS Register by GUI;
2. Local DNS Register is according to the message content received, and judges that its type is after MAC Address registered domain name, MAC is sent to DHCP Server;
3., after DHCP Server receives message, in distribution list, search corresponding IP address according to MAC Address, found IP address, then IP address has been returned to LocalDNS Register module; Do not find the IP address that this MAC is corresponding, then do a mark, when the main frame of this MAC Address is when applying for IP address, this IP address is returned to Local DNS Register by DHCP Server while for its allocation address;
4. Local DNS Register is after receiving this IP address, the domain name of this IP address and correspondence thereof is sent to DNS proxy module, record MAC Address and the domain name of GUI transmission simultaneously, automatically repeating above-mentioned behavior in order to system when restarting, not needing user again to arrange on GUI;
6. DNS proxy is after receiving the message that Local DNS Register sends, and takes out the IP address in message and domain name, this is inserted into content in the buffer entries Cache of oneself; IP address corresponding for domain name, when sending inquiry of the domain name, directly can be returned to PC by PC.
Described local area network (LAN) realizes the method for domain name registration, server specifies static ip address,
2. the static ip address of main frame and domain name are sent to inner DNS registrar Local DNS Register module by GUI;
2. Local DNS Register is according to the message content received, and judges that its type is after static ip address registered domain name, static address and domain name is sent to DNS proxy module;
Record this static ip address and domain name simultaneously, automatically perform when starting in order to system and do not need user again to arrange on GUI;
3. DNS proxy is after receiving the message that Local DNS Register sends, and takes out the IP address in message and domain name, this is inserted into content in the buffer entries Cache of oneself; IP address corresponding for domain name, when sending inquiry of the domain name, is directly returned to PC by PC.
A kind of local area network (LAN) realizes the device of domain name registration, its composition comprises: main frame, and described main frame connects INTERNET network, and described INTERNET network connects gateway by Gateway External IP address, described gateway connects local area network (LAN), and described local area network (LAN) connects PC and server.
Beneficial effect:
1. present invention achieves in local area network (LAN) when not having dns server, PC can by the server capability in domain name access local network, such as http, ftp server etc.
2. the present invention can meet and still not use domain name access server when gateway does not support NAT lookback.
3. the present invention can save the worry that user remembers IP address, domain name memory more convenient than IP address.
4. the present invention under the pattern of server dynamic obtaining IP address, when after the variation of IP address, can not need LAN subscriber to go to inquire about IP again, only uses local area network (LAN) domain name.
Accompanying drawing illustrates:
Accompanying drawing 1 is the structural representation of this product.
Accompanying drawing 2 is flow charts of this product.
Embodiment:
Embodiment 1:
Local area network (LAN) realizes a method for domain name registration, when in local area network (LAN), PC passes through the server of domain name access inside, first PC can send DNS query bag to gateway, and the content comprised in this inquiry packet is the domain name that PC keys in; When gateway receives this inquiry packet, this inquiry packet is sent to the DNS proxy functional module of internal system, first this module searches for the Cache that oneself is preserved, the IP address of domain name and correspondence thereof is contain in Cache, inquire, this IP address is returned to PC, and PC conducts interviews according to this IP address again; Or search and can send inquiry packet by the dns server externally in network less than, DNSproxy, wait for that dns server returns results, obtain Query Result, this result and IP address are returned to PC by DNS proxy, are saved in Cache by this result simultaneously, for inquiring about next time.
Embodiment 2:
Local area network (LAN) described in embodiment 1 realizes the method for domain name registration, external network disconnects, DNS query failure, and PC cannot pass through domain name access server; In the Cache of DNS proxy module, add one group of entry, i.e. the domain name of server and the IP address of correspondence thereof: DNS proxy module is when inquiring about, and search this entry, return to correct IP address and be given to PC, PC normally has access to server.
Embodiment 3:
Local area network (LAN) described in embodiment 1 realizes the method for domain name registration, the address of server has by DHCP Dynamic Acquisition, and the entry in Cache needs dynamic interpolation; At DHCP Server when giving PC allocation address, this IP address is joined in Cache together with domain name; Have a lot of main frame to obtain IP address dynamic in local area network (LAN), gateway knows which main frame needs registered domain name; The unique identification of a main frame is its MAC Address: DHCP Server judges whether to need to add Cache entry according to this MAC Address, is this host registration local area network (LAN) domain name; Process respectively according to the difference that LAN server is dynamic obtaining IP address or appointment static ip address.
Embodiment 4:
Local area network (LAN) described in embodiment 1 realizes the method for domain name registration, with the addition of the module of a called after Local DNS Register in a gateway to process local area network (LAN) domain name registration; The domain name of main frame, MAC Address/IP address are sent in this Local DNSRegister module by GUI by user; What user was submitted to by GUI is domain name and MAC Address, and LocalDNS Register first inquires about IP address corresponding to this MAC Address to DHCP Server, after successful inquiring, this IP address is sent to DNS proxy process together with domain name; What user was submitted to by GUI is IP address and domain name, and DNS proxy process is directly mail in IP address and domain name by Local DNS Register.
Embodiment 5:
Local area network (LAN) described in embodiment 3 realizes the method for domain name registration, first server dynamic assignment host ip (this main frame can be used as server, outwards provides certain function) address,
1. the MAC Address of server and domain name are sent to inner DNS Registering modules Local DNS register by GUI;
2. Local DNS Register is according to the message content made referrals to, and judges that its type is after MAC Address registered domain name, MAC is sent to DHCP Server;
3., after DHCP Server receives message, in distribution list, search corresponding IP address according to MAC Address, found IP address, then IP address has been returned to LocalDNS Register module; Do not find the IP address that this MAC is corresponding, then do a mark, when the main frame of this MAC Address is when applying for IP address, this IP address is returned to Local DNS Register by DHCP Server while for its allocation address;
4. Local DNS Register is after receiving this IP address, the domain name of this IP address and correspondence thereof is sent to DNS proxy module, record MAC Address and the domain name of GUI transmission simultaneously, automatically repeating above-mentioned behavior in order to system when restarting, not needing user again to arrange on GUI;
5. DNS proxy is after receiving the message that Local DNS Register sends, and takes out the IP address in message and domain name, this is inserted into content in the buffer entries Cache of oneself; IP address corresponding for domain name, when sending inquiry of the domain name, directly can be returned to PC by PC.
Embodiment 6:
Local area network (LAN) described in embodiment 3 realizes the method for domain name registration, server specifies static ip address,
1. the static ip address of server and domain name are sent to inner DNS registrar Local DNS Register module by GUI;
2. Local DNS Register is according to the message content received, and judges that its type is after static ip address registered domain name, static address and domain name is sent to DNS proxy module; Record this static ip address and domain name simultaneously, automatically perform when starting in order to system and do not need user again to arrange on GUI;
3. DNS proxy is after receiving the message that Local DNS Register sends, and takes out the IP address in message and domain name, this is inserted into content in the buffer entries Cache of oneself; IP address corresponding for domain name, when sending inquiry of the domain name, is directly returned to PC by PC.
Embodiment 7:
A kind of local area network (LAN) realizes the device of domain name registration, its composition comprises: main frame 1, and described main frame connects INTERNET network 2, and described INTERNET network connects gateway 4 by Gateway External IP address 3, described gateway connects local area network (LAN) 5, and described local area network (LAN) connects PC 6 and server 7.
Claims (7)
1. a local area network (LAN) realizes the method for domain name registration, it is characterized in that: when in local area network (LAN), PC PC passes through the server of domain name access inside, first PC can send domain name system DNS query bag to gateway, and the content comprised in this inquiry packet is the domain name that PC keys in; When gateway receives this inquiry packet, the domain name system this inquiry packet being sent to internal system acts on behalf of DNSproxy functional module, first this module searches for the cache list Cache that oneself is preserved, the IP address of domain name and correspondence thereof is contain in Cache, inquire, this IP address is returned to PC, and PC conducts interviews according to this IP address again; Or search and can send inquiry packet by the dns server externally in network less than, DNS proxy, wait for that dns server returns results, obtain Query Result, this result and IP address are returned to PC by DNS proxy, are saved in Cache by this result simultaneously, for inquiring about next time.
2. local area network (LAN) according to claim 1 realizes the method for domain name registration, it is characterized in that: external network disconnects, DNS query failure, PC cannot pass through domain name access server; In the Cache of DNS proxy module, add one group of entry, i.e. the domain name of server and the IP address of correspondence thereof; DNS proxy module is when inquiring about, and search this entry, return to correct IP address and be given to PC, PC normally has access to server.
3. local area network (LAN) according to claim 1 realizes the method for domain name registration, it is characterized in that: the IP address of main frame is from dynamic Host Configuration Protocol server DHCP Server Dynamic Acquisition, and the entry in Cache needs dynamic interpolation; At DHCP Server when giving host assignment address, this IP address is joined in Cache together with domain name; Have a lot of main frame to obtain IP address dynamic in local area network (LAN), gateway knows which main frame needs registered domain name; The unique identification of a main frame is its MAC Address; DHCP Server judges whether to need to add Cache entry according to this MAC Address, is this host registration local area network (LAN) domain name; Process respectively according to the difference that LAN server is dynamic obtaining IP address or appointment static ip address.
4. local area network (LAN) according to claim 1 realizes the method for domain name registration, it is characterized in that: add the module Local DNSRegister being used for processing local area network (LAN) domain name registration in a gateway; The domain name of main frame, MAC Address/IP address are sent in this Local DNS Register module by graphic user interface GUI by user; What user was submitted to by GUI is domain name and MAC Address, and Local DNS Register first inquires about IP address corresponding to this MAC Address to DHCP Server, after successful inquiring, this IP address is sent to DNS proxy process together with domain name; What user was submitted to by GUI is IP address and domain name, and DNS proxy process is directly mail in IP address and domain name by Local DNS Register.
5. local area network (LAN) according to claim 3 realizes the method for domain name registration, its feature
Be: first main frame dynamic IP address allocation,
1. the MAC Address of main frame and domain name are sent to inner DNS Registering modules Local DNS Register by GUI;
2. Local DNS Register is according to the message content received, and judges that its type is after MAC Address registered domain name, MAC is sent to DHCP Server
3., after DHCP Server receives message, in distribution list, search corresponding IP address according to MAC Address, found IP address, then IP address has been returned to LocalDNS Register module; Do not find the IP address that this MAC is corresponding, then do a mark, when the main frame of this MAC Address is when applying for IP address, this IP address is returned to Local DNS Register by DHCP Server while for its allocation address;
4. Local DNS Register is after receiving this IP address, the domain name of this IP address and correspondence thereof is sent to DNS proxy module, record MAC Address and the domain name of GUI transmission simultaneously, automatically repeating above-mentioned behavior in order to system when restarting, not needing user again to arrange on GUI;
5. DNS proxy is after receiving the message that Local DNS Register sends, and takes out the IP address in message and domain name, this is inserted into content in the buffer entries Cache of oneself; IP address corresponding for domain name, when sending inquiry of the domain name, directly can be returned to PC by PC.
6. local area network (LAN) according to claim 3 realizes the method for domain name registration, it is characterized in that: server specifies static ip address,
1. the static ip address of main frame and domain name are sent to inner DNS registrar Local DNS Register module by GUI;
2. Local DNS Register is according to the message content received, and judges that its type is after static ip address registered domain name, static address and domain name is sent to DNS proxy module; Record this static ip address and domain name simultaneously, automatically perform when starting in order to system and do not need user again to arrange on GUI;
3. DNS proxy is after receiving the message that Local DNS Register sends, and takes out the IP address in message and domain name, this is inserted into content in the buffer entries Cache of oneself; IP address corresponding for domain name, when sending inquiry of the domain name, is directly returned to PC by PC.
7. a local area network (LAN) realizes the device of domain name registration, its composition comprises: main frame, it is characterized in that: described main frame connects INTERNET network, described INTERNET network connects gateway by Gateway External IP address, described gateway connects local area network (LAN), and described local area network (LAN) connects PC and server.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410745349.8A CN104468575A (en) | 2014-12-10 | 2014-12-10 | Method and device for achieving domain name registration in local area network |
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| CN113381915A (en) * | 2021-04-27 | 2021-09-10 | 福建依时利软件股份有限公司 | Method, device, equipment and medium for interconnection of internal and external networks of campus |
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| CN106452831A (en) * | 2016-08-25 | 2017-02-22 | 平安科技（深圳）有限公司 | Operation and maintenance management method for GTM equipment, and terminal |
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