154results about How to "Normal access" patented technology

The invention discloses a file management method of electronic equipment and the electronic equipment. The method comprises the following steps: detecting a deletion operation in allusion to a first file, wherein the first file is stored in a first storage area of the electronic equipment; determining whether the attribute of the first file accords with a preset attribute; when the attribute of the first file accords with the preset attribute, moving the first file from the first storage area to a second storage area; and redirecting the first file to obtain a storage path of the first file in the second storage area, wherein the first file is accessed through the storage path. The method provided by the invention is used for solving the technical problem that related applications cannot run normally as the files cannot be accessed after being deleted, so that the technical effect that the deleted files are temporarily stored and then the related applications still can normally access to the files is realized.

The invention discloses a cloud network end cooperative defense method and system based on end-side edge computing, and relates to information security of an electric power industrial control system. The method comprises the following steps: setting an edge computing center at a terminal side, collecting industrial control system terminal equipment information and communication flow information, defining and identifying attribute characteristics of an electric power industrial control terminal by utilizing equipment fingerprints, automatically collecting the fingerprints of the electric power industrial control terminal equipment by utilizing an Nmap scanning method, establishing a training model by a decision tree algorithm, and achieving the dynamic fingerprint authentication of the terminal equipment; through setting a switch mirror image, intelligent monitoring host flow control and cloud computing center training flow baseline, industrial control terminal equipment flow anomaly detection is realized, and a cloud cooperative defense technology based on edge computing is realized. Through flow data acquisition, information entropy quantification flow characteristic attribute preprocessing and improved semi-supervised clustering K-means algorithm training, abnormal flow detection of the electric power industrial control intranet is realized, and cloud network real-time defense based on abnormal flow detection is realized.

The invention discloses a punch card method based on Wi-Fi and a system thereof. The punch card method acquires management frames in preset access points (AP) according to methods of data packet monitor and data packet capture, and determines punch card information of users through frame classifications according to AP, classifications according to MAC addresses of users and frame analysis. In the punch card system, users only need to try to connect AP in operation processes to complete the punch card. A fast punch card method for staff users is provided. The punch card method does not influence normal operation of a network, and can be realized by employing a usual wireless network card supporting a monitoring mode at a Wi-Fi monitoring terminal.

The invention discloses a method and a device for inspecting and restoring a computer network state, wherein the method comprises the steps of inspecting a network connection condition, network connection configuration, network safety setting and a network speed condition of a computer, respectively supplying operating prompts aiming at the network connection condition, the network connection configuration, the network safety setting and the network speed condition according to inspection results, and restoring the network connection state for the computer network state according to responses of the operating prompts. According to the method and the device for inspecting and restoring the computer network state, various aspects of the computer network state can be comprehensively inspected, and the corresponding operating prompts according to the inspection results are offered to a user of the computer for reference. Meanwhile, the aspects where the problems exist in the computer network state can be comprehensively restored according to user selection, and the user is capable of normally accessing network resources by using the computer.

The invention discloses a file encryption method based on two-dimension code scanning. The file encryption method comprises the steps that a safe file box storing a plurality of files is installed on a PC, a two-dimension code for encryption of the safe file box is generated based on a user name, current time, a random value and the overall unique identification GUID of the PC, the user name and a user password are used as a log-on message and are stored on an authentication server, when a user name and a user password for logging onto an APP of a mobile terminal are identical to the user name and the user password of the log-on message respectively, a user is authorized to successfully log onto the APP of the mobile terminal, the APP of the mobile terminal scans the two-dimension code and sends the scanned two-dimension code to the authentication server, the authentication server analyzes the scanned two-dimension code to obtain the user name, and when the user name obtained through analysis is identical to the user name of the log-on message, the user is authorized to access the files stored in the safe file box. According to the file encryption method, the PC and the mobile terminal are coordinated, the user is authorized to access the files stored in the safe file box of the PC based on two-dimension code scanning, and therefore the password for file encryption is prevented from being forgotten or stolen.

The invention provides an online recovery method for a PPPoE (Point-to-Point Protocol over Ethernet), BRAS (Broadband Remote Access Server) equipment and an AAA (Authentication, Authorization and Accounting) server. The online recovery method for the PPPoE comprises the following steps: receiving the data message of a PPPoE client side; if the data message does not name a user table item, searching a first abnormal offline table item corresponding to the PPPoE client side in a preset first abnormal offline user table; if the first abnormal offline table item is searched and the first abnormaloffline table item is permitted to recover, according to the first abnormal offline table item, generating a first temporary user table item, and sending a request to the AAA server to authenticate the authentication request of the identity of the PPPoE client side; if the AAA server returns an authentication success response, recovering the first temporary user table item as the user table item.According to the online recovery method for the PPPoE, the technical effects that an access side link is immediately recovered after being cut off, the client side does not sense a broken line and cannormally access the network, and the user can conveniently use the online recovery method can be achieved.

An embodiment of the invention discloses a method of range signal transmission in an orthogonal frequency division multiplexing system, comprising that: a district of a base station includes at least two areas, and each area is provided with a distance range channel time resource block in an upstream sub-frame section, and guard time is obligated in each distance range channel time resource block. A terminal determines oneself area according to the receiving intensity of the current signal, transmits the range signal to the base station through the time resource beside the guard time in the range channel time resource block distributed for the area. The embodiment of the invention also discloses a system of range signal transmission, a base station and a terminal in the orthogonal frequency division multiplexing system. According to the invention, reverse access of the terminal in different area is flexibly supported.

The invention discloses a method for updating network security table, a network device and a dynamic host configuration protocol (DHCP) server. When a virtual machine moves in a management domain of a network device, the network device analyses a first received request message from the virtual machine, an internet protocol (IP) address and a medium access control (MAC) address of the virtual machine are obtained, when a security table item including the IP address and the MAC address doesn't exist in a network security table of the network device, the network device sends a second request message generated according to the IP address and the MAC address to the DHCP server, so that the DHCP server is enabled to launch mandatory communication between the DHCP server and the virtual machine, the network device monitors an interactive message between the DHCP server and the virtual machine to obtain the security table item of the virtual machine, the network security table is updated according to the security table item. Through the above mode, the method for updating network security table, the network device and the DHCP server ensure that the virtual machine can access the network normally when the virtual machine moves in the management domain of the network device, reliability of the network security table is also ensured, and therefore network security is ensured.

The invention discloses a VPN login authentication method, applied to an authentication server. The method comprises the following steps: receiving VPN login authentication information sent by a userterminal, wherein VPN login authentication information comprises a login account, a login password and a hardware identifier of the user terminal; authenticating the login account and the login password; determining whether the received hardware identifier is matched with a preset hardware identifier bound with the login account in the case of authentication success; and otherwise, receiving secondary VPN login authentication initiated by the user terminal. By adoption of the VPN login authentication method, on the premise of considering the security, it is ensured that when the user logs in different terminals by using the same account, the user can still normally access VPN.

The present application relates to the field of Internet technology, and discloses a host node switching method, a device, an electronic device, and a computer storage medium. The master node switching method comprises the following steps: when the first fault controller detects that the current master node fails, sending a contention request to the coordination service center, wherein the contention request is used for requesting the coordination service center to determine the metadata node corresponding to the first fault controller as the target master node; then, when receiving the acknowledgement information from the coordination service center, the metadata node corresponding to the first failure controller is switched to the target master node through the virtual Internet protocolVIP. The method of the embodiment of the present application enables the existing low-version client to normally access the switched master node even if the master-standby handover of the metadata node occurs, thereby achieving compatibility for the low-version client to access the master node.

The invention discloses WLAN (wireless local area network) channel and power distribution method and system for a mobile terminal. The method includes: storing a latitude-longitude and code comparison table, allowing for correspondence between codes of nations or areas and latitude-longitude ranges of the nations or areas, in the mobile terminal; starting a GPS (global positioning system) of the mobile terminal to acquire latitude and longitude of a current location, and searching the latitude-longitude and code comparison table to obtain a code of a nation or area corresponding to the latitude and longitude; setting WLAN channels and power parameters of the mobile terminal through a WLAN device according to the code. The method and system allow the mobile terminal to acquire the latitude and longitude through the GPS so as to configure the WLAN channels and power parameters for itself, allow the mobile terminal to automatically adapt to the WLAN channels and powers of different nations or areas so as to normally access WLANs.

The invention provides a method and device for realizing a global system for mobile communications (GSM) terminal to access a 3G universal subscriber identity module (USIM) card. The method comprises the following steps: after a starting terminal activates a card, judging the type of a smart card which is inserted into a terminal in accordance with instruction conditions supported by the card; and if the smart card is the 3G USIM card, realizing information interaction between a GSM protocol stack and the card by conversion operations, wherein the conversion operations comprise the conversion of operating command heads which are sent to a USIM from the GSM terminal, the conversion of status words returned by the USIM into GSM status words, the conversion of file control parameters returned by the USIM into GSM file attributes, and the mutual conversion of 3G formatted file contents and GSM formatted file contents when the GSM terminal modifies or acquires USIM file contents. According to the invention, the protocol stack of the GSM terminal can access the 3G USIM card normally and acquire corresponding information from the 3G USIM card; and the 3G USIM card can realize fundamental service functions.

The invention discloses a method for accessing sqlite safely by multiple processes, which comprises the following steps: A, accessing of a database is divided into a read thread, a write thread and afile thread; B, the process in the step A queries the state of the database lock before accessing the database, if the database is locked, the thread preparing to access the database is in a waiting state, and after the lock is released, the thread preparing to access the database obtains the control right of the lock to operate on the database; C, the thread adopts the first-come-first-served principle to obtain the locks, after the operation of the thread to the database is completed, the locks are released, other thread obtains the lock state at this time and then operates on the database.The invention can improve the shortage of the prior art, creates an independent database access channel, solves the problem of concurrent access of the database, and avoids the situation that the database lock cannot be accessed.

The embodiment of the invention discloses a method and a device for repairing domain name system (DNS) polling mode-based webpages and a server. The method comprises the following steps of acquiring domain names of reference resources in to-be-repaired webpages; inquiring a DNS resolution system to acquire all internet protocols (IP) which correspond to the domain names; verifying the availability of all the IPs, and marking available IPs; and randomly selecting one available IP when a DNS request of a client side for the resources under the domain names is received, and replying the client side by taking the IP as a resolution result. According to the method disclosed by the embodiment of the invention, the problem that certain webpages can be normally visited sometimes, but cannot be visited sometimes due to the technology that DNS polling serves as load balancing is solved, so that users can visit the webpages more fluently.

The invention provides a webpage access method, a terminal and a computer readable storage medium. After receiving an access request for a target webpage from a user, the terminal acquires an internal URL according to an external URL of the target webpage, and distinguishes information via the condition that whether distinguishing information is carried in the internal URL to give a hint that the target webpage is an information stream webpage or a non-information stream webpage to a distributor, so that the distributor can directly determine that which kind of user interface should be distributed to the current target webpage according to the received internal URL; before access to the network for acquiring webpage content, the external URL can be recovered according to the internal URL, and normal network accessing is ensured. Therefore, according to the scheme of the method provided by the invention, a plenty of necessary retrieval work in existing schemes are avoided, time consumed for distribution the user interface in webpage accessing is saved, and waiting time of the user is reduced; meanwhile, consumption of processing resources is also reduced, blockage of a terminal browser is avoided, and user experience is further enhanced.

The present invention provides an access control method and an access control apparatus. The method includes the following steps that: a HTTP request message sent by a client device is received; and when it is determined that at least one of a Referer field and a Host field which are carried by the HTTP request message is legitimate, the HTTP request message is forwarded. With the access control method and the access control apparatus provided by the embodiments of the invention, the legitimacy of the Referer field and the Host field which are carried by the HTTP request message is judged, when at least one of the Referer field and the Host field is legitimate, the HTTP request message is forwarded, and therefore, the client device can normally access corresponding websites, and a situation that legitimate websites are mistakenly judged as illegal websites can be avoided to the greatest extent, and the false alarm rate of website filtering can be reduced, and the client device can normally access the legitimate websites, and user experience can be improved.

The invention relates to the technical field of information security. The invention discloses an L2TP/IPSEC cracking method and system based on high-performance computing. The cracking method comprises the steps of cracking a pre-shared key, cracking a login password and realizing encryption information decryption in combination with data flow redirection. The cracking system comprises a traffic intercepting and forwarding module, a man-in-the-middle server management end and a man-in-the-middle server proxy end. According to the invention, man-in-the-middle attack is adopted firstly and thena violent cracking mode is adopted; the weakness of Diffie-Hellman is utilized to carry out man-in-the-middle attack for three times; the cracking of the pre-shared key is completed by the first man-in-the-middle attack; the second man-in-the-middle attack completes cracking of the login password, the third man-in-the-middle attack is combined with data flow redirection to achieve encryption information decryption, in the password cracking process, a user can normally access the Internet, and the method is a cracking method which is free of perception and does not have influence on the user touse the VPN.

The invention relates to the field of communication, and discloses a method, a gateway and a network access system for controlling data acquired by a mobile terminal. The technical problem that network access in the prior art needs to consume a large amount of data flow of a mobile terminal is solved. The method comprises the following steps of receiving a data access request transmitted by the mobile terminal by using the gateway; judging whether the data access request contains a first preset label or not; transmitting the data access request to a distribution server providing flow-free authority if the data access request contains the first preset label so that the distribution server is an agency server which is used for the mobile terminal to visit a network in a flow-free mode; and reckoning all or part of data flow which is consumed in a network access process of the mobile terminal through the agency server in an appointed service provider by a mobile network operator on the basis of a flow-free mark. The data access request contains address information of a resource server. The technical effect of reducing data flow consumed in the network access process of the mobile terminal is achieved.

The invention discloses a GPS assistance-based LTE ultra-long-distance coverage random access method, which mainly solves the problem that the LTE coverage area in the prior art is small, and the userequipment UE outside the maximum coverage radius cannot successfully access the network. The technical scheme is as follows: 1) configuring location information and an uplink timing open loop adjustment distance threshold; 2) calculating the distance from the user equipment to a target base station; 3) judging whether the distance from the user equipment to the target base station is greater thanthe open loop distance threshold; 4) calculating open loop adjustment time; 5) synchronizing the open loop adjustment uplink time; 6) sending a random access prefix sequence; 7) synchronizing closedloop adjustment uplink time and accessing to an LTE system. The GPS assistance-based LTE ultra-long-distance coverage random access method in the invention expands the coverage area of the LTE base station and improves the uplink resource utilization, so that the user equipment UE located outside the maximum coverage area of the existing LTE can successfully complete network access process and uplink time synchronization with the assistance of the GPS.

The invention provides an authentication method, an authentication server and an authentication system. The authentication server sends inquiry information with a user name to multiple Windows AD domain name servers in a network after obtaining the user name so that the Windows AD domain name servers can determine whether to store a user principal name UPN corresponding to the user name, if an inquiry response carrying the UPN and fed back by a target Windows AD domain server is received, a lightweight directory access protocol (LDAP) authentication request message is constructed according to the UPN and sent to the target Windows AD domain server, and authentication result information sent by the target Windows AD domain server is received. The authentication server constructs the LDAP authentication request message according to the UPN corresponding to the user name and sent by the Windows AD domain server, subdomain user authentication can be successfully carried out, and accordingly a computer corresponding to the user can normally have access to network communication.

The invention discloses a function extension method based on a WEB browser. The WEB browser does not support a plug-in extension function. The method comprises the following steps: S1, intercepting an HTTP request to be sent by the WEB browser; S2, judging whether local data in a terminal device needs to be obtained based on the HTTP request, executing the step S3 if yes, and forwarding the HTTP request to a WEB server if no; and S3, obtaining the local data according to the HTTP request, and sending the obtained local data to the WEB server. According to the function extension method based on the WEB browser and the terminal device disclosed by the invention, the function extension can be carried out on the browser in a non-plug-in manner, so that an application system can carry out normal access on local system resources, local hardware peripherals and the like via the browser, and whether the browser supports a plug-in function does not need to be considered.

The invention relates to the network monitoring technology field, especially relates to a video monitoring system based on a cloud platform. The video monitoring system comprises a service bus, a user management module, a cloud server proxy module, a network management module, distributed type storage service, and an application program. The service bus is used to provide a connection pivot for message interaction among the various modules. The user management module is used to create a cloud server automatically for a newly registered or added user, and a camera is bond with the cloud server. The distributed type storage service is used to provide block storage service. The cloud service proxy module is used to download latest video files, and store the downloaded video files in a clouddisk based on an internal network or a special network. The network management module is used to provide the service port mapping of the video files, and the ports are limited to be only open to the access of the IP address of the application program, and the access of other IP addresses is forbidden, and in addition a virtual firewall is provided. The application program is used for the query ofthe videos. The problems of the network video monitoring such as easy illegal attacks on the address, low safety performance, difficulty in expanding storage space are solved, and the video monitoringsystem can be used for the network video monitoring technology field.