CN104378449A - Virtual IP realization method - Google Patents

Abstract

The invention discloses a method for realizing a virtual IP, which belongs to the technical field of computer communication networks. The method comprises that the computer obtains the network card ID and network card description information bound to its own IP from a database according to its own IP, and obtains the virtual IP from the database. and the virtual IP subnet mask, disable the network card corresponding to the network card ID by calling the device driver, and then bind the virtual IP and virtual IP subnet obtained from the database on the network card corresponding to the network card ID by calling the driver mask, or delete the virtual IP and virtual IP subnet mask corresponding to the network card description information in the registry of the network card corresponding to the network card ID, and then enable the network card corresponding to the network card ID by calling the device driver, In this way, functions such as adding and deleting virtual IPs can be realized by the computer itself, which saves manual operations and saves labor costs.

Description

A Realization Method of Virtual IP

technical field

The invention relates to the technical field of computer communication networks, in particular to a virtual IP implementation method.

Background technique

In the computer cluster system, the high availability service of the business is mainly achieved by adding nodes to make multiple nodes work in the load sharing mode or the active standby mode. When the active node fails, the standby node takes over the active The node continues to provide services. Due to the evolution of the digital communication network to an all-IP network, the communication mode of nodes is mainly based on IP communication. When the active node fails, the client accessing the active node will continue to request services from the IP address of the active node, which requires the standby node to provide services with the same IP address when taking over from the active node. The method that multiple nodes share one IP address to provide external services is called virtual IP (VIP).

Existing virtual IP implementation methods, taking a computer cluster system composed of multiple servers as an example, are mostly implemented through manual configuration of virtual IP, which consumes labor costs; the existing virtual IP implementation methods also have By adding a network address translation (NAT) device to convert the IP addresses of multiple servers, so that multiple servers present a unified IP address to the outside world, this implementation requires adding a special NAT device, which increases the cost of network construction and maintenance . At present, there is no more feasible method for the server itself to implement functions such as adding and deleting virtual IPs.

Contents of the invention

In order to solve the problems existing in the prior art, the present invention proposes a method for realizing virtual IP. The server itself realizes functions such as adding and deleting virtual IP, a database is shared between servers to store virtual IP, and the server itself realizes the function of virtual IP. Addition and deletion do not need to use additional hardware storage devices to control the configuration of the server virtual IP.

The technical scheme that the present invention adopts is as follows: a kind of realization method of virtual IP, comprises:

Step S1: The computer obtains the network card ID and network card description information bound to its own IP from the database according to its own IP, and obtains the virtual IP and virtual IP subnet mask from the database;

Step S2: calling the device driver to disable the network card corresponding to the network card ID;

Step S3: judge whether the virtual IP has been set according to the preset flag in the database, if yes, execute step S4, otherwise execute step S5;

Step S4: calling the device driver to delete the virtual IP and virtual IP subnet mask corresponding to the network card description information in the registry of the network card corresponding to the network card ID, and then perform step S5;

Step S5: call the device driver to bind the virtual IP and virtual IP subnet mask obtained from the database on the network card corresponding to the network card ID, and update the preset flag in the database;

Step S6: calling the device driver to enable the network card corresponding to the network card ID.

Step S0 is also included before the step S1: the computer starts the regular heartbeat monitoring and records the monitoring log in real time.

Between the step S0 and the step S1, it also includes: the computer judges the preset switching mode and the state of the machine, and when the preset switching mode and the state of the machine are the main machine standby mode/main machine, the computer executes the Start the application service after the above step S1-step S6; when the preset switching mode and the state of the machine are host host mode/host, and it is detected that the monitoring target has not started the application service, the computer executes the step S1-step Start the application service after S6; when the preset switching mode and the state of the machine are the main machine standby mode/standby machine, and when it is detected that the monitoring target has not started the application service, the computer starts after performing the steps S1-Step S6 application services.

When the preset switching mode and the state of the machine are host mode/host, and it is detected that the monitoring target has started the application service, the computer determines whether the notification of starting the application service has been received, and if so, executes the step S1- Start the application service after step S6; otherwise, return to execute the judgment of the preset switching mode and the state of the machine.

When the preset switching mode and the state of the machine are the main machine standby mode/standby machine, and when it is detected that the monitoring target has started the application service, the computer executes the operation of automatically deleting the virtual IP and then stops the application service, and then returns to execute the Describe the judgment of the preset switching mode and the status of the machine.

The operation of automatically deleting the virtual IP specifically includes:

Step s1: calling the device driver to disable the network card corresponding to the network card ID;

Step s2: calling the device driver to delete the virtual IP and virtual IP subnet mask corresponding to the description information of the network card in the registry of the network card corresponding to the network card ID, and updating the preset flag in the database;

Step s3: calling the device driver to enable the network card corresponding to the network card ID.

After the above startup application service includes:

Step 1: detect the operation status of gateway and application service, if the normal gateway of application service is unimpeded, then return to carry out described judgment preset switching mode and local state; If the normal gateway of application service is not unimpeded, then carry out the operation of automatically deleting virtual IP Then stop the application service, and then perform step 2; if the application service is abnormal and the gateway is not smooth, then directly perform step 2; if the application service is abnormal and the gateway is unblocked, restart the application service, if the startup is successful, return to step 1, and if the startup fails, execute Step 2;

Step 2: Judging whether the monitoring target is working normally according to the current monitoring log, if so, send a notification to the monitoring target to start the application service and then return to execute the judgment of the preset switching mode and the state of the machine, otherwise the alarm prompts an error and ends.

In step S2, calling the device driver to disable the network card corresponding to the network card ID is as follows: calling the first function to obtain the installed device information set on the server, calling the second function to enumerate the obtained installed device information set to obtain a current Installed device information, call the third function to obtain the detailed device information of the currently installed device; call the fourth function and the fifth function to modify the installation parameters contained in the detailed information of the currently installed device to the first preset value and make the modification Take effect; call the sixth function to release the current memory.

Step S4 described invoking the device driver to delete the virtual IP and virtual IP subnet mask corresponding to the network card description information in the registry of the network card corresponding to the network card ID is specifically: calling the seventh function and the eighth function from the Obtain the original IP and the original IP subnet mask in the registration form of the network card corresponding to the network card ID; call the ninth function to delete the corresponding field of the virtual IP and the virtual IP subnet mask from the original IP and the original IP subnet mask, And write back the registry after the delete operation to the corresponding position in the registry key; call the tenth function to release the current memory.

In step S5, the calling device driver program binds the virtual IP and the virtual IP subnet mask obtained from the database on the network card corresponding to the network card ID as follows: calling the seventh function and the eighth function corresponding to the network card ID Obtain the original IP and original IP subnet mask from the registry of the network card; call the ninth function to bind the virtual IP and virtual IP subnet mask obtained from the database in the original IP and original IP subnet mask fields , and write back the registry key after the binding operation to the corresponding position in the registry key; call the tenth function to release the current memory.

In step S6, calling the device driver to enable the network card corresponding to the network card ID is as follows: calling the first function to obtain the installed device information set on the server, and calling the second function to enumerate the obtained installed device information set to obtain a current Installed device information, call the third function to obtain the detailed device information of the currently installed device; call the fourth function and the fifth function to modify the installation parameters contained in the detailed information of the currently installed device to the second preset value and make the modification Take effect; call the sixth function to release the current memory.

Another virtual IP implementation method disclosed by the present invention includes:

Step S1: The computer obtains the network card ID bound to its own IP from the database according to its own IP, and obtains the virtual IP and virtual IP subnet mask from the database; executes the query configuration information command;

Step S2: judging whether the configuration information of the network card corresponding to the network card ID is correct according to the command execution result of the query configuration information command, if yes, perform step S4, otherwise perform step S3;

Step S3: Execute the stop virtual IP command to delete the virtual IP and virtual IP subnet mask in the configuration information, execute the configuration command to increase the virtual IP and virtual IP subnet mask obtained from the database in the configuration information, Execute step S4;

Step S4: enter the configuration file in the configuration directory, and execute the command to check the configuration file;

Step S5: judge whether the configuration information in the configuration file is correct according to the command execution result of the check configuration file command, if yes, end, otherwise execute step S6;

Step S6: Execute the delete command to delete the configuration file, execute the write command to rewrite a configuration file in the configuration directory, and the configuration information of the rewritten configuration file includes the virtual IP and virtual IP obtained from the database. IP subnet mask, end.

The judging whether the configuration information of the network card corresponding to the network card ID according to the command execution result of the query configuration information command is correct is specifically: judging the virtual IP and virtual IP subnet contained in the command execution result of the query configuration information command Whether the mask is consistent with the virtual IP and virtual IP subnet mask obtained from the database, if yes, the configuration information is correct, otherwise it is incorrect.

The beneficial effects achieved by the present invention are as follows: compared with the prior art, the technical solution provided by the present invention configures and realizes virtual IP in an automatic manner, which saves manual operation and saves labor costs. At the same time, the technical solution provided by the present invention can directly When applied to the server, the virtual IP is realized by the server itself, without the need for third-party device control and implementation, thereby eliminating the need for NAT devices and reducing the construction and maintenance costs of the entire digital communication network. Through the technical solution provided by the invention, the code can be adjusted according to specific needs, and has good scalability.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the flow chart of the implementation method of the virtual IP provided by Embodiment 1 of the present invention in the dual-system hot standby application scenario;

Figure 2-1 is the flow chart of the automatic configuration shown in Figure 1 to realize the virtual IP and start the application service under the Windows platform;

Figure 2-2 is a flow chart of automatically deleting the virtual IP and stopping the application service shown in Figure 1 under the Windows platform;

Fig. 3 is a flow chart of a method for implementing a virtual IP based on the Windows platform provided by Embodiment 2 of the present invention;

Figure 4-1 is the implementation flow chart of the automatic configuration shown in Figure 1 to realize the virtual IP and start the application service under the Linux platform;

Figure 4-2 is a flow chart of the implementation of automatically deleting the virtual IP and stopping the application service shown in Figure 1 under the Linux platform.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the following will further describe in detail the embodiments of the present invention in conjunction with the accompanying drawings.

Virtual IP can enable a computer to provide multiple access IP addresses to the outside world, give full play to the advantages of VLAN, reasonably allocate network resources, and balance network loads. Virtual IP technology is often used in cluster deployment to provide a virtual IP access to the outside world. .

Example 1

In order to have a deeper understanding of the implementation method of a virtual IP provided by the present invention, first, in Embodiment 1, the use of the implementation method of the virtual IP proposed by the present invention in the dual-machine hot standby application scenario is described, as shown in Figure 1 , the details are as follows:

Step 101: start the machine, start the regular heartbeat monitoring and record the monitoring log in real time;

Step 102: Determine the preset switching mode and the state of the machine. If it is the master host mode/master, go to step 103; if it is the master backup mode/master, go to step 107; if it is the master backup mode/standby, go to step 105;

In this embodiment, preferably, the preset switching modes shown include host host mode, host standby mode, and host standby mode, and the state of the local machine can be host or standby.

Step 103: Detect whether the listening target has started the application service, if yes, execute step 104, otherwise execute step 107;

Step 104: Judging whether the notification of starting the application service has been received, if yes, execute step 107, otherwise execute step 102;

Step 105: Detect whether the listening target has started the application service, if yes, execute step 106, otherwise execute step 107;

Step 106: automatically delete the virtual IP, and stop the application service, return to step 102;

Step 107: Automatic configuration to realize virtual IP, start application service;

For example, the started application service is an online banking system or an identity authentication system.

Step 108: Detect the operation status of the gateway and application service. If the application service is normal and the gateway is unblocked, then execute step 102. If the application service is normal and the gateway is not unblocked, then execute step 110. If the gateway is unblocked, step 111 is performed;

Step 109: Restart the application service, if the startup is successful, return to step 108, and if the startup fails, go to step 111;

Step 110: automatically delete the virtual IP, and stop the application service, go to step 111;

Step 111: judge whether the monitoring target is working normally according to the current monitoring log, if yes, execute step 112; otherwise, an alarm prompts an error and ends;

Step 112 : Send a notification of starting the application service to the listening target, and then return to step 102 .

The automatic configuration in step 107 of the application of the dual-machine hot standby solution provided by this embodiment realizes the virtual IP and starts the process of the application service. The specific implementation based on the Windows platform is shown in Figure 2-1, including the following steps:

Step 201: Obtain the network card ID and network card description information bound to its own IP from the database according to its own IP, and obtain the virtual IP and virtual IP subnet mask from the database.

Step 202: calling the device driver to disable the network card corresponding to the network card ID;

Specifically in this embodiment, the device driver mainly includes a first function, a second function, a third function, a fourth function, a fifth function, a sixth function, a seventh function, an eighth function, and a ninth function and the tenth function.

Specifically, this step is implemented by calling the first function, the second function, the third function, the fourth function, the fifth function, and the sixth function, wherein calling the first function can obtain the information set of devices installed on the server, and calling the second The function can enumerate the obtained installed device information set to obtain a currently installed device information, call the third function to obtain detailed device information of the currently installed device; call the fourth and fifth functions to get the current installed device information The installation parameters contained in the detailed information are modified to the first preset value and the modification takes effect; calling the sixth function can release the memory occupied by the operations of calling the first function to the fifth function.

Step 203: judging whether the virtual IP has been set according to the preset flag in the database, if yes, execute step 204, otherwise execute step 205;

Preferably in this embodiment, when the preset flag bit is 1, it means that the virtual IP has been set, and when the preset flag bit is 0, it means that the virtual IP is not set.

Step 204: call the device driver to delete the virtual IP and virtual IP subnet mask corresponding to the network card description information in the registry of the network card corresponding to the network card ID, and then perform step 205;

Specifically, this step is implemented by calling the seventh function, the eighth function, the ninth function and the tenth function, wherein calling the seventh and eighth functions can obtain the original IP, original IP subnet mask; Calling the ninth function can delete the corresponding fields of virtual IP and virtual IP subnet mask from the original IP and original IP subnet mask, and write the registry key after the delete operation to the registry key Corresponding positions in ; Calling the tenth function can release the memory occupied by the operation of calling the seventh to ninth functions.

Step 205: call the device driver to bind the virtual IP and virtual IP subnet mask obtained from the database on the network card corresponding to the network card ID, and update the preset flag in the database;

Specifically, this step is implemented by calling the seventh function, the eighth function, the ninth function and the tenth function, wherein calling the seventh and eighth functions can obtain the original IP, original IP subnet mask; calling the ninth function can bind the virtual IP and virtual IP subnet mask obtained from the database in the field of the original IP and the original IP subnet mask, and bind the operation after The registry is written back to the corresponding location in the registry key; calling the tenth function can release the memory occupied by the operation of calling the seventh to ninth functions.

Preferably in this embodiment, this step is specifically setting the preset flag bit to 1.

Step 206: Call the device driver to enable the network card corresponding to the network card ID.

Specifically, this step is implemented by calling the first function, the second function, the third function, the fourth function, the fifth function, and the sixth function, wherein calling the first function can obtain the information set of devices installed on the server, and calling the second The function can enumerate the obtained installed device information set to obtain a currently installed device information, call the third function to obtain detailed device information of the currently installed device; call the fourth and fifth functions to get the current installed device information The installation parameters contained in the detailed information are modified to the second preset value and the modification takes effect; calling the sixth function can release the memory occupied by the operations of calling the first function to the fifth function.

Step 207: Start the application service.

The process of automatically deleting the virtual IP and stopping the application service described in step 106 or step 110 in the application of the dual-system hot backup solution provided by this embodiment is shown in Figure 2-2 for the specific implementation based on the Windows platform, including the following steps :

Step 201': call the device driver to disable the network card corresponding to the network card ID;

Specifically, this step is implemented by calling the first function, the second function, the third function, the fourth function, the fifth function, and the sixth function, wherein calling the first function can obtain the information set of devices installed on the server, and calling the second The function can enumerate the obtained installed device information set to obtain a currently installed device information, call the third function to obtain detailed device information of the currently installed device; call the fourth and fifth functions to get the current installed device information The installation parameters contained in the detailed information are modified to the first preset value and the modification takes effect; calling the sixth function can release the memory occupied by the operations of calling the first function to the fifth function.

Step 202': call the device driver to delete the virtual IP and the virtual IP subnet mask corresponding to the description information of the network card in the registry of the network card corresponding to the network card ID, and update the preset flag in the database;

Specifically, this step is implemented by calling the seventh function, the eighth function, the ninth function and the tenth function, wherein calling the seventh and eighth functions can obtain the original IP, original IP subnet mask; Calling the ninth function can delete the corresponding fields of virtual IP and virtual IP subnet mask from the original IP and original IP subnet mask, and write the registry key after the delete operation to the registry key Corresponding positions in ; Calling the tenth function can release the memory occupied by the operation of calling the seventh to ninth functions.

Preferably in this embodiment, this step is specifically setting the preset flag bit to 0.

Step 203': Call the device driver to enable the network card corresponding to the network card ID.

Specifically, this step is implemented by calling the first function, the second function, the third function, the fourth function, the fifth function, and the sixth function, wherein calling the first function can obtain the information set of devices installed on the server, and calling the second The function can enumerate the obtained installed device information set to obtain a currently installed device information, call the third function to obtain detailed device information of the currently installed device; call the fourth and fifth functions to get the current installed device information The installation parameters contained in the detailed information are modified to the second preset value and the modification takes effect; calling the sixth function can release the memory occupied by the operation of calling the first function to the fifth function.

Step 204': stop the application service.

Example 2

As shown in Figure 3, it is a kind of virtual IP implementation method based on Windows platform provided by the present embodiment 2, including the following contents:

Step 301: Obtain the network card ID and network card description information bound to the IP from the database according to its own IP;

For example, its own IP is 192.168.16.47.

Step 302: Obtain the virtual IP and virtual IP subnet mask from the database;

For example: the virtual IP is 192.168.25.200, and the virtual IP subnet mask is 255.255.255.0.

Step 303: Obtain the field value indicating whether the virtual IP has been set from the database;

For example: the obtained field value is flag.

Step 304: Call the SetupDiGetClassDevs function to obtain the installed device information set;

For example: the obtained installed device information collection is:

({650D5BB1-9BB4-45CD-90C8-ECE70B72EB35},

{E90A38FA-BA87-40F8-8BA9-B86F6852A9D3},

{4D36E96C-E325-11CE-BFC1-08002BE10318},

{4D36E96D-E325-11CE-BFC1-08002BE10318}

....)

Step 305: call the SetupDiEnumDeviceInfo function to enumerate the set of installed device information, and obtain a currently installed device information;

For example: The currently installed device information obtained is:

({650D5BB1-9BB4-45CD-90C8-ECE70B72EB35}).

Step 306: call the SetupDiGetDeviceRegistryProperty function to obtain the device detailed information corresponding to the currently installed device information;

Step 307: Compare whether the description information contained in the device detailed information is the same as the network card description information obtained from the database, if yes, execute step 308, otherwise return to execute step 305;

Step 308: calling the SetupDiSetClassInstallParams function to modify the installation parameters contained in the device detailed information to the first preset value;

Specifically in this embodiment, the installation parameter is stateChange, and the first preset value is DICS_DISABLE.

Step 309: calling the SetupDiCallClassInstaller function to make the modification of the installation parameters take effect;

Step 310: call the SetupDiDestroyDeviceInfoList function to release the current memory;

Specifically, the current memory is released by calling the SetupDiDestroyDeviceInfoList function to destroy the acquired installed device information collection.

Step 311: judge whether the virtual IP has been set according to the field value, if yes, execute step 312, otherwise execute step 316;

Step 312: calling the RegOpenKeyEx function to open the registry key corresponding to the network card description information;

Specifically, the registry key corresponding to the network card description information is: SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters\\Interfaces.

Step 313: calling the RegQueryValueEx function to obtain the original IP and original IP subnet mask corresponding to the network card description information from the registry;

For example: the obtained original IP is 192.168.16.47 (192.168.25.200), and the original IP subnet mask is 255.255.255.0 (255.255.255.0).

Step 314: call the RegSetValueEx function to delete the field corresponding to the virtual IP and the virtual IP subnet mask from the original IP and the original IP subnet mask, and write back the deleted IP and the subnet mask to the registry key corresponding position;

For example: the IP and subnet mask after the delete operation are 192.168.16.47 and 255.255.255.0 respectively.

Step 315: call the RegCloseKey function to release the current memory, and execute step 316;

Specifically, the current memory is released by releasing the currently opened registry key.

Step 316: calling the RegOpenKeyEx function to open the registry key corresponding to the network card description information;

Step 317: calling the RegQueryValueEx function to obtain the original IP and original IP subnet mask corresponding to the network card description information from the registry;

Step 318: Call the RegSetValueEx function to bind the virtual IP and virtual IP subnet mask obtained from the database in the fields of the original IP and the original IP subnet mask, and bind the IP and subnet mask after the binding operation Write back to the corresponding position in the registry key, change the field value and write it into the database;

For example, the IP after the binding operation is 192.168.16.47 (192.168.25.200), and the subnet mask is 255.255.255.0 (255.255.255.0).

Step 319: call the RegCloseKey function to release the current memory;

Specifically, the current memory is released by releasing the currently opened registry key.

Step 320: Call the SetupDiGetClassDevs function to obtain the installed device information collection;

Step 321: call the SetupDiEnumDeviceInfo function to enumerate the set of installed device information, and obtain a currently installed device information;

Step 322: call the SetupDiGetDeviceRegistryProperty function to obtain the device detailed information corresponding to the currently installed device information;

Step 323: Compare whether the description information included in the device detailed information is the same as the network card description information obtained from the database, if yes, execute step 324, otherwise return to execute step 321;

Step 324: calling the SetupDiSetClassInstallParams function to modify the installation parameters contained in the device detailed information to the second preset value;

Specifically in this embodiment, the installation parameter is stateChange, and the second preset value is DICS_ENABLE.

Step 325: calling the SetupDiCallClassInstaller function to make the modification of the installation parameters take effect;

Step 326: call the SetupDiDestroyDeviceInfoList function to release the current memory.

Specifically, the current memory is released by calling the SetupDiDestroyDeviceInfoList function to destroy the acquired installed device information collection.

Example 3

This embodiment is provided on the basis of the dual-machine hot backup solution provided in Embodiment 1, wherein the automatic configuration in Figure 1 realizes the virtual IP and starts the process of application services, and the specific implementation based on the Linux platform is shown in Figure 4-1 shown, including the following steps:

Step 401: Obtain the network card ID bound to its own IP from the database according to its own IP, and obtain the virtual IP and virtual IP subnet mask from the database;

For example, the obtained network card ID is eth0, the obtained virtual IP is 192.168.25.100, and the obtained virtual IP subnet mask is 255.255.255.0.

Step 402: Execute the query configuration information command;

For example: the query configuration information command is: ifconfig eth0:0.

Step 403: Judging whether the configuration information of the network card corresponding to the network card ID is correct according to the command execution result of the query configuration information command, if yes, perform step 405, otherwise perform step 404;

For example, the execution result of the command is:

eth0:0 Link encap:Ethernet HWaddr 00:50:56:81:73:F3

inet addr:192.168.25.220 Bcast:192.168.25.100

Mask: 255.255.255.0

UP BROADCAST RUNNING MULTICAST MTU:1500

Metric: 1

Bcast: 192.168.25.100 and Mask: 255.255.255.0 in the command execution result are consistent with the virtual IP and virtual IP subnet mask obtained from the database, and the judgment result is that the configuration information of the network card is correct.

Step 404: Execute the stop virtual IP command to delete the virtual IP and virtual IP subnet mask in the configuration information, execute the configuration command to add the virtual IP and virtual IP subnet mask obtained from the database to the configuration information code, execute step 405;

For example, the command to stop the virtual IP executed on the network card corresponding to the network card ID is: ifconfgeth0:0 down. The configuration command executed is: ifconfig eth0:0 192.168.25.100 netmask255.255.255.0up.

Step 405: enter the configuration file in the configuration directory, and execute the command to check the configuration file;

For example, entering the configuration file in the configuration directory specifically executes the command: cd/etc/sysconfig/network-scripts; the executed command to check the configuration file specifically is: moreifcfg-eth0:0.

Step 406: Judging whether the configuration information in the configuration file is correct according to the command execution result of the check configuration file command, if yes, execute step 408, otherwise execute step 407:

For example, the command execution result after executing more ifcfg-eth0:0 is: DEVICE＝eth0:0

BOOTPROTO=none

IPADDR=192.168.25.80

NETMASK=255.255.255.0

GATEWAY＝192.168.25.254

HWADDR＝00:50:56:81:73:f3

NM_CONTROLLED=yes

>

TYPE=Ethernet

IPV6INIT=no

USERCTL=no

If IPADDR=192.168.25.80 contained in the execution result of the above command is different from the virtual IP=192.168.25.100 obtained from the database, step 407 is executed.

Step 407: Execute the delete command to delete the configuration file, execute the write command to rewrite a configuration containing the virtual IP and virtual IP subnet mask obtained from the database in the configuration information under the configuration directory file, execute step 408;

For example, the delete command executed is specifically: rm ifcfg-eth0:0; the write command executed is specifically:

vi ifcfg-eth0:0

DEVICE=eth0:0

BOOTPROTO=none

IPADDR=192.168.25.100

NETMASK=255.255.255.0

GATEWAY＝192.168.25.254

HWADDR＝00:50:56:81:73:f3

NM_CONTROLLED=yes

>

TYPE=Ethernet

IPV6INIT=no

USERCTL=no

Step 408: Start the application service.

This embodiment is provided on the basis of the dual-machine hot backup solution provided in Embodiment 1, wherein the process of automatically deleting the virtual IP and stopping the application service described in Figure 1 is implemented on a Linux-based platform as shown in Figure 4-2 , including the following steps:

Step 401': Execute the stop virtual IP command to delete the virtual IP and virtual IP subnet mask in the configuration information;

For example, the command to stop the virtual IP is specifically: ifconfg eth0:0 down.

Step 402': enter the configuration file in the configuration directory;

For example, run the command cd /etc/sysconfig/network-scripts to enter the configuration file in the configuration directory.

Step 403': execute a delete command to delete the configuration file;

For example, the deletion command executed is specifically: rm ifcfg-eth0:0.

Step 404': stop the application service.

The above-described embodiments are only preferred specific implementations of the present invention, and ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims (19)

1. an implementation method for virtual IP address, is characterized in that, comprising:

Step S1: computer gets the network interface card ID and network interface card descriptor that bind with self IP from database according to self IP, obtain virtual IP address and virtual IP address subnet mask from database;

Step S2: invocation facility driver forbids network interface card corresponding to described network interface card ID;

Step S3: judging whether to arrange virtual IP address according to the default flag bit in database, is perform step S4, otherwise perform step S5;

Step S4: invocation facility driver deletes virtual IP address corresponding with described network interface card descriptor in the registration table of network interface card corresponding to described network interface card ID and virtual IP address subnet mask, then performs step S5;

Step S5: invocation facility driver binds the virtual IP address and virtual IP address subnet mask that obtain from database on the network interface card that described network interface card ID is corresponding, and the default flag bit more in new database;

Step S6: invocation facility driver enables network interface card corresponding to described network interface card ID.

2. the method for claim 1, is characterized in that: also comprise step S0 before described step S1: computer starting timing heartbeat is monitored and real time record monitors daily record.

3. method as claimed in claim 2, it is characterized in that: also comprise between described step S0 and described step S1: computer judges to preset switch mode and local state, when described default switch mode and local state are main frame standby host pattern/main frame, described computer starts application service after performing described step S1-step S6;

When described default switch mode and local state are mainframe host computer pattern/main frame, and when detecting that monitoring target does not start application service, described computer starts application service after performing described step S1-step S6;

When described default switch mode and local state are main frame standby host pattern/standby host, and when detecting that monitoring target does not start application service, described computer starts application service after performing described step S1-step S6.

4. method as claimed in claim 3, it is characterized in that: when described default switch mode and local state are mainframe host computer pattern/main frame, and when detecting that monitoring target has started application service, described computer judges whether to receive the notice starting application service, is start application service after performing described step S1-step S6; Otherwise return the described judgement of execution and preset switch mode and local state.

5. method as claimed in claim 3, it is characterized in that: when described default switch mode and local state are main frame standby host pattern/standby host, and when detecting that monitoring target has started application service, described computer stops application service after performing the operation of automatically deleting virtual IP address, then returns the described judgement of execution and presets switch mode and local state.

6. method as claimed in claim 5, is characterized in that: the operation of described automatic deletion virtual IP address specifically comprises:

Step s1: invocation facility driver forbids network interface card corresponding to described network interface card ID;

Step s2: invocation facility driver deletes virtual IP address corresponding with described network interface card descriptor in the registration table of network interface card corresponding to described network interface card ID and virtual IP address subnet mask, and the default flag bit more in new database;

Step s3: invocation facility driver enables network interface card corresponding to described network interface card ID.

7. the method as described in claim 3 or 4, is characterized in that: comprise after described startup application service:

Step 1: the operation conditions detecting gateway and application service, if the normal gateway of application service is unimpeded, then returns the described judgement of execution and presets switch mode and local state; If the normal gateway of application service is not smooth, then stop application service after performing the operation of automatically deleting virtual IP address, then perform step 2; If the abnormal gateway of application service is not smooth, directly perform step 2; If the abnormal gateway of application service is unimpeded, restart application service, if start successfully, return and continue to perform step 1, if start unsuccessfully, perform step 2;

Step 2: judge that whether monitor target normally works, and is according to current monitoring daily record, returns the described judgement of execution and preset switch mode and local state, otherwise alarm is made mistakes, and terminates after the notice of monitoring target transmission startup application service.

8. the method for claim 1, it is characterized in that: the network interface card that invocation facility driver described in step S2 forbids described network interface card ID corresponding is specially: call the first function and to obtain on server erection unit information aggregate, call the second function to enumerate obtain the current information of erection unit to the information aggregate of erection unit obtained, call the detailed device information that the 3rd function obtains current erection unit; Call the 4th function and the installation parameter comprised in the details of current erection unit is revised as the first preset value and amendment is come into force by the 5th function; Call the 6th function release current memory.

9. the method for claim 1, is characterized in that: invocation facility driver described in step S4 deletes virtual IP address corresponding with described network interface card descriptor in the registration table of network interface card corresponding to described network interface card ID and virtual IP address subnet mask is specially: call the 7th function and the 8th function and obtain initial IP, initial IP subnet mask from the registration table of network interface card corresponding to described network interface card ID; Call the 9th function from initial IP, initial IP subnet mask, delete field corresponding to virtual IP address, virtual IP address subnet mask, and the registration table after deletion action is written back to the relevant position in registry key; Call the tenth function release current memory.

10. the method for claim 1, is characterized in that: invocation facility driver described in step S5 binds the virtual IP address that obtains from database on the network interface card that described network interface card ID is corresponding and virtual IP address subnet mask is specially: call the 7th function and the 8th function and obtain initial IP, initial IP subnet mask from the registration table of network interface card corresponding to described network interface card ID; Call the 9th function in the field of initial IP, initial IP subnet mask, bind the virtual IP address, the virtual IP address subnet mask that obtain from database, and the registration table after bindings is written back to the relevant position in registry key; Call the tenth function release current memory.

11. the method for claim 1, it is characterized in that: the network interface card that invocation facility driver described in step S6 enables described network interface card ID corresponding is specially: call the first function and to obtain on server erection unit information aggregate, call the second function to enumerate obtain the current information of erection unit to the information aggregate of erection unit obtained, call the detailed device information that the 3rd function obtains current erection unit; Call the 4th function and the installation parameter comprised in the details of current erection unit is revised as the second preset value and amendment is come into force by the 5th function; Call the 6th function release current memory.

The implementation method of 12. 1 kinds of virtual IP addresses, is characterized in that, comprising:

Step S1: computer gets the network interface card ID bound with self IP from database according to self IP, obtains virtual IP address and virtual IP address subnet mask from database; Perform query configuration message command;

Step S2: judge that whether the configuration information of the network interface card that described network interface card ID is corresponding is correct according to the command execution results of described query configuration message command, be perform step S4, otherwise perform step S3;

Step S3: perform and stop virtual IP address order to delete virtual IP address in described configuration information and virtual IP address subnet mask, perform configuration order increases the virtual IP address and virtual IP address subnet mask that obtain from database in described configuration information, performs step S4;

Step S4: enter the configuration file under config directory, performs and checks profile command;

Step S5: whether correct according to the configuration information that the command execution results of described inspection profile command judges in configuration file, is terminate, otherwise performs step S6;

Step S6: perform delete command and delete described configuration file, perform write order under described config directory, re-write a configuration file, include the virtual IP address obtained from database and virtual IP address subnet mask in the configuration information of the configuration file re-write, terminate.

13. methods as claimed in claim 12, it is characterized in that: described in step S2, judge whether the configuration information of the network interface card that described network interface card ID is corresponding is correctly specially according to the command execution results of described query configuration message command: judge that whether the virtual IP address comprised in the command execution results of described query configuration message command is consistent with the virtual IP address obtained from database and virtual IP address subnet mask with virtual IP address subnet mask, represent that configuration information is correct, otherwise incorrect.

14. methods as claimed in claim 12, is characterized in that: also comprise step S0 before described step S1: computer starting timing heartbeat is monitored and real time record monitors daily record.

15. methods as claimed in claim 14, it is characterized in that: also comprise between described step S0 and described step S1: computer judges to preset switch mode and local state, when described default switch mode and local state are main frame standby host pattern/main frame, described computer starts application service after performing described step S1-step S6;

When described default switch mode and local state are mainframe host computer pattern/main frame, and when detecting that monitoring target does not start application service, described computer starts application service after performing described step S1-step S6;

When described default switch mode and local state are main frame standby host pattern/standby host, and when detecting that monitoring target does not start application service, described computer starts application service after performing described step S1-step S6.

16. methods as claimed in claim 15, it is characterized in that: when described default switch mode and local state are mainframe host computer pattern/main frame, and when detecting that monitoring target has started application service, described computer judges whether to receive the notice starting application service, is start application service after performing described step S1-step S6; Otherwise return the described judgement of execution and preset switch mode and local state.

17. methods as claimed in claim 15, it is characterized in that: when described default switch mode and local state are main frame standby host pattern/standby host, and when detecting that monitoring target has started application service, described computer stops application service after performing the operation of automatically deleting virtual IP address, then returns the described judgement of execution and presets switch mode and local state.

18. methods as claimed in claim 17, is characterized in that: the operation of described automatic deletion virtual IP address specifically comprises:

Step s1: perform and stop virtual IP address order to delete virtual IP address in the configuration information of network interface card corresponding to described network interface card ID and virtual IP address subnet mask;

Step s2: enter the configuration file under config directory;

Step s3: perform delete command and delete described configuration file.

19. methods as described in claim 15 or 16, comprise after it is characterized in that described startup application service:

Step 1: the operation conditions detecting gateway and application service, if the normal gateway of application service is unimpeded, then returns the described judgement of execution and presets switch mode and local state; If the normal gateway of application service is not smooth, then stop application service after performing the operation of automatically deleting virtual IP address, then perform step 2; If the abnormal gateway of application service is not smooth, directly perform step 2; If the abnormal gateway of application service is unimpeded, restart application service, if start successfully, return and continue to perform step 1, if start unsuccessfully, perform step 2;

Step 2: judge that whether monitor target normally works, and is according to current monitoring daily record, returns the described judgement of execution and preset switch mode and local state, otherwise alarm is made mistakes, and terminates after the notice of monitoring target transmission startup application service.