CN109951575B - Method and system for intercepting specified domain name - Google Patents
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Abstract
The invention discloses a method and a system for intercepting an appointed domain name, wherein the method for intercepting the appointed domain name comprises the following steps: responding to a network interception service request; acquiring a first domain name to be intercepted according to the network interception service request; converting the first domain name to be intercepted into a first IP address; setting a maximum transmission unit and a network virtual port address according to a preset VPN service attribute; adding the first IP address to an intercept list of the virtual network port address. The invention has the following advantages: the method can intercept the appointed domain name without completely mastering the system bottom layer and the authority of the system file, and is simple to operate.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a method and a system for intercepting an appointed domain name.
Background
The authority (root) for completely controlling the system bottom layer and the system file is one of the system authorities, also called root authority, and the system authority can be understood as a concept, but is higher than the administrator authority, and the authority for completely controlling the system bottom layer and the system file authority is a super administrator user account in an operating system, and the account has the high-level authority of the whole system, and all objects can operate. Obtaining the right means that the highest right of the system has been obtained, and at this time, you can perform all operations of adding, deleting, changing and checking on any file in the system (including the system file). The existing method for intercepting the specified domain name generally needs to completely control the authority of a system bottom layer and system files, and the interception of the specified domain name is difficult to realize without the authority.
At present, the intelligent terminal operating system introduces virtual network service to help establish virtual link on equipment, and does not need to completely control the authority of a system bottom layer and system files. This framework utilizes the virtual network card driver mechanism of the linux system. The TUN/TAP provides a virtual soft network interface (as opposed to a physical network card). The developer may open the soft interface device and obtain a file descriptor (device or file). Unlike a physical network card interface that sends data to or receives data from the network (actually writes/reads to the kernel, and then the network card driver sends/receives data to the network), the virtual network interface reads/writes to the application space. After the virtual network card drive is established, the user application originally sends the packet to the actual network card to the virtual network card drive, and the virtual server can read the data sent by the user; the virtual server can write data into the virtual network card drive, and at the moment, if the user reads the data, the user can read the virtual network interface to obtain the data written by the virtual server. By sending network requests to this virtual network card, these network requests can be handled and also masked. In view of this, the system file of the device can be modified to achieve the purpose, but modifying the system file needs to completely control the authority of the system bottom layer and the system file, and the operation is complicated.
Disclosure of Invention
The present invention is directed to solving at least one of the above problems.
Therefore, a first objective of the present invention is to provide a method for intercepting a specified domain name, which can intercept the specified domain name without completely controlling the system bottom layer and the authority of system files, and is simple in operation.
In order to achieve the above object, an embodiment of the present invention discloses a method for intercepting an assigned domain name, which includes the following steps: responding to a network interception service request; acquiring a first domain name to be intercepted according to the network interception service request; converting the first domain name to be intercepted into a first IP address; setting a maximum transmission unit and a network virtual port address according to a preset VPN service attribute; adding the first IP address to an intercept list of the virtual network port address.
Further, still include: associating according to the first domain name to be intercepted to obtain a plurality of domain names to be intercepted; converting the domain names to be intercepted in a one-to-one correspondence manner to obtain a plurality of IP addresses; adding the plurality of IP addresses to an intercept list of the virtual network port address.
Further, the step of obtaining a plurality of domain names to be intercepted by associating according to the first domain name to be intercepted specifically includes: and associating the first domain name to be intercepted to obtain a plurality of associated domain names: and providing the plurality of associated domain names for a user so that the user can determine the plurality of domain names to be intercepted from the plurality of associated domain names.
Further, when providing the plurality of associated domain names to the user, the method further comprises: and providing the registrant information of the associated domain names for the user so that the user can determine the domain names to be intercepted from the associated domain names according to the registrant information of the associated domain names.
Further, the plurality of IP addresses are added to the interception list of the virtual network port address by adding a static routing method.
According to the method for intercepting the specified domain name, the domain name to be intercepted is converted into the IP address, and then the IP address is put into the interception list of the virtual network port address, so that the specified domain name is intercepted on the premise of not completely mastering the system bottom layer and the authority of the system file, and the domain name interception operation is simple.
The second objective of the present invention is to provide a system for intercepting an assigned domain name, which can intercept the assigned domain name without completely controlling the system bottom layer and the authority of system files, and is simple in operation.
In order to achieve the above object, an embodiment of the present invention discloses a system for intercepting a specified domain name, including: the network interception service request response module is used for responding the network interception service request; the intercepting domain name determining module is used for obtaining a first intercepting domain name according to the response network intercepting service request; the IP address conversion module is used for converting the domain name to be intercepted according to the first domain name to be intercepted to obtain a first IP address; the system setting module is used for setting a maximum transmission unit and a network virtual port address according to the preset VPN service attribute; and the IP address adding module is used for adding the first IP address into an interception list of the virtual network port address.
Further, still include: the domain name association module is used for associating according to the first domain name to be intercepted to obtain a plurality of domain names to be intercepted; the conversion module is further configured to convert the domain names to be intercepted in a one-to-one correspondence manner to obtain a plurality of IP addresses, and the IP address adding module is further configured to add the plurality of IP addresses to the interception list of the virtual network port address.
Further, still include: a prompt module for providing a plurality of associated domain names to a user; a selecting module, configured to select the domain names to be intercepted from the associated domain names; the association module is further configured to associate the first domain name to be intercepted to obtain the plurality of associated domain names.
Further, the prompt module is further configured to provide the user with registrant information of the multiple associated domain names, so that the user determines the multiple domain names to be intercepted from the multiple associated domain names according to the registrant information of the multiple associated domain names.
Further, the IP address adding module adds the plurality of IP addresses to an interception list of the virtual network port address by adding a static routing method.
According to the system for intercepting the specified domain name, the domain name to be intercepted is converted into the IP address, and then the IP address is put into the interception list of the virtual network port address, so that the specified domain name is intercepted on the premise of not completely mastering the system bottom layer and the authority of system files, and the domain name intercepting operation is simple.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a flow diagram of a method of intercepting a specified domain name, in accordance with one embodiment of the present invention;
fig. 2 is a block diagram of a system for intercepting a specified domain name according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
The invention is described below with reference to the accompanying drawings.
Fig. 1 is a flowchart of a method of intercepting a specified domain name according to an embodiment of the present invention. As shown in fig. 1, the method for intercepting a specified domain name according to the embodiment of the present invention includes the following steps:
s1: in response to the network intercept service request.
The network interception service request is provided with a first domain name to be intercepted, such as a domain name of an advertisement website or a domain name of a malicious website.
(1) Before HTTP work begins with establishing a TCP connection, the browser first establishes a connection with a server via a network, which is done via TCP, which together with the IP protocol constructs the internet, the well-known TCP/IP protocol suite, and hence the internet is also referred to as a TCP/IP network. HTTP is a higher-level application layer protocol than TCP, and according to the rule, a connection of a higher-level protocol can be made only after a connection of a lower-level protocol is established, and therefore, a TCP connection is first established, and a port number of a general TCP connection is 80.
(2) The browser sends a request command to the server. Once the TCP connection is established, the browser sends a request command to the server.
(3) The browser sends request header information. After the browser sends its request command, it sends some other information in the form of a header to the server, after which the browser sends a blank line to inform the server that it has finished sending the header.
(4) The server responds to the client. After sending a request to the server, the server sends a reply back to the client, the first part of the reply being the version number of the protocol and the reply status code.
(5) The server sends the reply header information. Just as the client would send information about itself along with the request, the server would also send data about itself and the requested document to the user along with the reply.
(6) The server sends the data to the browser. After the server sends the header to the browser, it sends a blank line to indicate that the sending of the header is completed, and then it sends the actual data requested by the user in the format described by the response header.
(7) The server closes the TCP connection. Typically, once the server sends the request data to the browser, it closes the TCP connection. But if the browser or server is still open after sending the TCP connection with the header added to the line, the browser can continue to send requests over the same connection. Maintaining the connection saves time required to establish a new connection for each request and also saves network bandwidth.
S2: and acquiring a first domain name to be intercepted according to the network interception service request.
S3: and converting the first domain name to be intercepted into a first IP address.
Specifically, the DNS server is an abbreviation of a computer Domain Name System (Domain Name System or Domain Name Service), which is composed of a Domain Name resolver and a Domain Name server.
The domain name server is a server which stores domain names and corresponding IP addresses of all hosts in the network and has a function of converting the domain names into the IP addresses. Wherein the domain name must correspond to an IP address, and the IP address does not necessarily have a domain name.
The role of the domain name resolver is to map domain names to IP addresses, and this process is called "domain name resolution". In this embodiment, the domain name resolver maps the first domain name to be intercepted to the first IP address.
S4: and setting a maximum transmission unit and a network virtual port address according to the preset VPN service attribute.
Maximum Transmission Unit (MTU) refers to the Maximum number of datagram sizes (in bytes) that can be passed over a layer of a communication protocol. This parameter for maximum transmission units is typically associated with the communication interface (network interface card, serial port, etc.).
In one example of the present invention, the maximum transfer unit is set to 1500 bytes and the network virtual port address is ("10.0.2.0", 32).
S5: the first IP address is added to an intercept list of virtual network port addresses.
In one embodiment of the present invention, the method of intercepting a specified domain name further comprises:
s501: and associating according to the first domain name to be intercepted to obtain a plurality of domain names to be intercepted. For example, there are multiple associated domain names for a web site. If the user masks all the content of a certain website, one domain name of the website can be provided, and the provided domain names are associated to obtain other domain names of the website.
Further, step S501 further includes:
s501-1: and associating the first domain name to be intercepted to obtain a plurality of associated domain names. Specifically, the result obtained by associating the first domain name to be intercepted includes the domain name that the user needs to intercept, and also includes the domain name that the user does not need to intercept.
S501-2: and providing a plurality of associated domain names for the user so that the user can determine a plurality of domain names to be intercepted from the associated domain names. And displaying the plurality of associated domain names to a user through a display module, and selecting a plurality of domain names needing to be intercepted by the user.
Furthermore, when a plurality of associated domain names are provided for the user, registrant information of the associated domain names is also provided for the user, so that the user can determine a plurality of domain names to be intercepted from the associated domain names according to the registrant information of the associated domain names. For example, the plurality of associated domain names include a plurality of domain names registered by a certain number of companies a, and also include a plurality of domain names registered by other companies. The user can select all the domain names registered by company A as a plurality of domain names to be intercepted.
S502: and converting the domain names to be intercepted one by one to obtain a plurality of IP addresses.
S503: a plurality of IP addresses are added to an intercept list of virtual network port addresses. In an embodiment of the present invention, a plurality of IP addresses are added to an interception list of a virtual network port address by adding a static routing method, so that a plurality of IP addresses can be shielded.
According to the method for intercepting the specified domain name, the domain name to be intercepted is converted into the IP address, and then the IP address is put into the interception list of the virtual network port address, so that the specified domain name is intercepted on the premise of not completely mastering the system bottom layer and the authority of the system file, and the domain name interception operation is simple.
Fig. 2 is a block diagram of a system for intercepting a specified domain name according to an embodiment of the present invention. As shown in fig. 2, the system for intercepting a specified domain name according to an embodiment of the present invention includes: a network interception service request response module 100, an interception domain name determination module 200, an IP address translation module 300, a system setting module 400, and an IP address addition module 500.
The network interception service request response module 100 is configured to respond to a network interception service request. The intercepting domain name determining module 200 is configured to obtain a first intercepting domain name according to a response network intercepting service request. The IP address translation module 300 is configured to perform translation according to the first domain name to be intercepted to obtain a first IP address. The system setting module 400 is configured to set a maximum transmission unit and a network virtual port address according to a preset VPN service attribute. The IP address adding module 500 is configured to add the first IP address to an intercept list of virtual network port addresses.
According to the system for intercepting the specified domain name, the domain name to be intercepted is converted into the IP address, and then the IP address is put into the interception list of the virtual network port address, so that the specified domain name is intercepted on the premise of not completely mastering the system bottom layer and the authority of system files, and the domain name intercepting operation is simple.
In one embodiment of the present invention, the system for intercepting a specified domain name further comprises: the domain name association module is used for associating according to the first domain name to be intercepted to obtain a plurality of domain names to be intercepted; the conversion module is further used for converting the domain names to be intercepted in a one-to-one correspondence manner to obtain a plurality of IP addresses, and the IP address adding module is further used for adding the plurality of IP addresses into the interception list of the virtual network port address.
In one embodiment of the present invention, the system for intercepting a specified domain name further comprises: a prompt module and a selection module. The association module is further used for associating the first domain name to be intercepted to obtain a plurality of associated domain names. The prompt module is used for providing a plurality of associated domain names for a user. The selection module is used for selecting a plurality of domain names needing to be intercepted from a plurality of associated domain names
In an embodiment of the present invention, the prompt module is further configured to provide the registrant information of the plurality of associated domain names to the user, so that the user determines the plurality of domain names to be intercepted from the plurality of associated domain names according to the registrant information of the plurality of associated domain names.
In one embodiment of the invention, the IP address adding module adds a plurality of IP addresses to an interception list of virtual network port addresses by adding a static routing method.
It should be noted that the specific implementation manner of the system for intercepting a specified domain name in the embodiment of the present invention is similar to the specific implementation manner of the method for intercepting a specified domain name in the embodiment of the present invention, and specific reference is specifically made to the description of the method portion, and no further description is given for reducing redundancy.
In addition, other components and functions of the method and system for intercepting a specified domain name according to the embodiment of the present invention are known to those skilled in the art, and are not described in detail for reducing redundancy.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (6)
1. A method of intercepting a specified domain name, comprising the steps of:
responding to a network interception service request, wherein the network interception service request comprises a first domain name needing to be intercepted;
acquiring the first domain name to be intercepted according to the network interception service request;
converting the first domain name to be intercepted into a first IP address;
setting a maximum transmission unit and a virtual network port address according to a preset VPN service attribute;
adding the first IP address to an interception list of the virtual network port address;
associating according to the first domain name to be intercepted to obtain a plurality of domain names to be intercepted; the step of obtaining a plurality of domain names to be intercepted by associating according to the first domain name to be intercepted specifically comprises: and associating the first domain name to be intercepted to obtain a plurality of associated domain names: providing the plurality of associated domain names for a user so that the user can determine the plurality of domain names to be intercepted from the plurality of associated domain names;
Converting the domain names to be intercepted one by one to obtain a plurality of IP addresses;
adding the plurality of IP addresses to an intercept list of the virtual network port address.
2. The method of intercepting a specified domain name according to claim 1, wherein the plurality of IP addresses are added to the interception list of the virtual network port address by adding a static routing method.
3. The method for intercepting a specified domain name according to claim 1, wherein providing the plurality of associated domain names to the user further comprises:
and providing the registrant information of the associated domain names for the user so that the user can determine the domain names to be intercepted from the associated domain names according to the registrant information of the associated domain names.
4. A system for intercepting a specified domain name, comprising:
the network interception service request response module is used for responding a network interception service request, wherein the network interception service request comprises a first domain name to be intercepted;
the intercepted domain name determining module is used for obtaining the first domain name needing to be intercepted according to the response network intercepting service request;
the IP address conversion module is used for converting the domain name to be intercepted according to the first domain name to be intercepted to obtain a first IP address;
The system setting module is used for setting a maximum transmission unit and a virtual network port address according to the preset VPN service attribute;
an IP address adding module, configured to add the first IP address to an interception list of the virtual network port address;
the domain name association module is used for associating according to the first domain name to be intercepted to obtain a plurality of domain names to be intercepted;
the conversion module is further configured to convert the domain names to be intercepted in a one-to-one correspondence manner to obtain a plurality of IP addresses, and the IP address adding module is further configured to add the plurality of IP addresses to the interception list of the virtual network port address;
a prompt module for providing a plurality of associated domain names to a user;
a selecting module, configured to select the domain names to be intercepted from the associated domain names;
the association module is further configured to associate the first domain name to be intercepted to obtain the plurality of associated domain names.
5. The system for intercepting a specified domain name according to claim 4, wherein the prompt module is further configured to provide registrant information of the plurality of associated domain names to the user, so that the user determines the plurality of domain names to be intercepted from the plurality of associated domain names according to the registrant information of the plurality of associated domain names.
6. The system for intercepting a specified domain name according to claim 4, wherein the IP address adding module adds the plurality of IP addresses to the interception list of the virtual network port address by adding a static routing method.
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| CN114979069B (en) * | 2021-02-22 | 2024-04-09 | 腾讯科技（深圳）有限公司 | Domain name resolution request processing method, storage medium and electronic equipment |
| CN114422200A (en) * | 2021-12-28 | 2022-04-29 | 中国电信股份有限公司 | Domain name interception method and device and electronic equipment |
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