15 results about "Upstream server" patented technology

The invention relates to the technical field of network communication, in particular to a DNS (Domain Name Server) hierarchical cache resolution acceleration method and system based on a prefetching mechanism, which comprises the following steps: by constructing a hierarchical cache model comprising a client layer, a local DNS server layer and an upstream DNS server layer, caching a resolved domain name and a corresponding resolution result into each layer of cache; a DNS request of a terminal user is received, whether the request hits the cache or not is judged, and corresponding operation is adopted; historical query logs are collected, a next DNS request is predicted in combination with a prefetching mechanism of real-time network topology perception, and an analysis result of the domain name is cached to a local DNS server layer in advance; a cross-layer collaborative cache updating mechanism is adopted to ensure synchronous updating of cache data of different levels; and a symmetric encryption algorithm and a TLS protocol are introduced, so that the security of the data in the storage and transmission process is ensured. According to the method, the response of DNS analysis is accelerated through a prefetching mechanism and layered caching.

Encrypting data based on its metadata and the telemetric data of the upstream and downstream servers. Establish a secure connection between an upstream server and a downstream server and encrypt the data being transmitted by retrieving first telemetric data of the upstream server and second telemetric data of the downstream server at a specific time. Subsequently, aggregate the first and second telemetric data and retrieve metadata for the data being transmitted. Generate an encryption key based on the aggregated telemetric data and the metadata and use the encryption key to encrypt the data. Subsequently, the encrypted data is received and decrypted by the downstream server.

The invention discloses a session keeping method and device in a load balancing system, equipment and a medium, and relates to the technical field of cloud computing, and the method comprises the steps: receiving and analyzing a client request to obtain a quintuple corresponding to the client request, and querying whether corresponding cache data exists in a shared memory cache; if not, acquiring a hash value corresponding to the client request based on a target hash algorithm, and acquiring a first target index value from a preset annular hash space based on the hash value; determining a first target upstream server corresponding to the client request according to the first target index value; whether the first target upstream server is abnormal or not is judged, if the first target upstream server is abnormal, a second target index value is searched backwards in sequence based on the first target index value, and the client request is sent to the corresponding second target upstream server. The index values are randomly distributed in the annular hash space, so that the problem of overlarge pressure of a single server is avoided.

Disclosed are a data processing method, an electronic device, and a computer-readable storage medium. During uplink transmission, upon receiving a first QUIC message from a client device over a target UDP port, an NGINX server sends the first QUIC message to the QUIC protocol stack, such that the QUIC protocol stack processes the first QUIC message to derive application layer data, and sends a first data stream including a first application layer data packet to an upstream server. During downlink transmission, the NGINX server receives a second data stream from the upstream server, caches a second application layer data packet included in the second data stream into a second cache, and delivers the second application layer data packet to the QUIC protocol stack for processing when the QUIC protocol stack is writable to derive a second QUIC message and sends the second QUIC message to the client device.

The invention relates to the technical field of computers, and discloses a location point request uploading method and device, computer equipment and a storage medium, applied to an upstream server side, the method comprises the following steps: receiving a plurality of location point requests uploaded by a user side; obtaining a pre-configured capacity parameter of a preset card slot, and carrying out merging processing on the position point requests based on the capacity parameter to obtain at least one target request set; and uploading the target request set to a downstream server side associated with the upstream server side. According to the method, the problems of low efficiency and unstable performance caused by incapability of adapting to real-time request change due to fixed merging size in the existing position point uploading merging technology are solved.

The application discloses a self-adaptive content caching method, and the steps are as follows: 1) a request processor extracts characteristic parameters of the content access request information and writes the characteristic parameters into an original characteristic database of a local cache server; 2) content popularity in a next time window is predicted and written into a popularity database; and 3) a cache access interface of the local cache server checks whether the local cache server caches the requested content according to the characteristic parameters extracted by the request processor, if the requested content exists, the local cache server transmits the requested content to a user terminal, if the requested content does not exist, the requested content is acquired from an upstream server and transmitted to the user terminal. The application can fully mine and utilize the characteristics of content requests under real network environment and user access conditions, and dynamically adjust a caching strategy to improve caching efficiency.

Provided in an embodiment of the present application are a Locator allocation method, apparatus, device and storage medium, the method comprising: receiving a first message sent by an ICMPv6 server, the message type of the first message being a router advertisement (RA) message, and the first message comprising a first option field, the first option field is used for indicating a segment routing (Srv6) network node identifier (Locator) based on the IPv6 (Internet Protocol Version 6) of the ICMPv6 client side. By adopting the method, the client device can automatically obtain the Srv6 Locator from the upstream server device by expanding the NDP and utilizing the RA message of the ICMPv6 message.

This application provides a data processing method, device, and readable storage medium. During uplink, when the NGINX server receives a first QUIC packet from a client device via a target UDP port, it sends the first QUIC packet to the QUIC protocol stack. The QUIC protocol stack processes the first QUIC packet to obtain application layer data and sends a first data stream containing the first application layer data packet to the upstream server. During downlink, a second data stream is received from the upstream server. The second application layer data packet in the second data stream is cached in a second cache. When the QUIC protocol stack is writable, it is handed over to the QUIC protocol stack for processing to obtain a second QUIC packet, which is then sent to the client device. This approach, by integrating a QUIC protocol stack into the NGINX server, enables simultaneous support for multiple application layer protocols in NGINX-based QUIC usage scenarios, and different application layer protocols use the same UDP port, reducing port overhead.

The application discloses a kind of gateway interface's timeout time adjustment method, device and equipment, by real-time acquisition each service instance of the host resource information of the gateway, each service instance of the host resource information of the upstream server and the log information of the service request responded by each service instance of the gateway, and store in preset memory queue;Every first preset time length obtains the host resource information and the log information in recent second preset time length, respectively calculate the established connection timeout time and response timeout time between each service instance of the gateway and each service instance of the upstream server, and correspondingly send to each service instance of the gateway, carry out the timeout configuration of the interface of each service instance of the gateway, using the application, it can be according to the host resource condition and log information in each service instance of gateway and upstream server, dynamically adjust the interface timeout time of each service instance of gateway.

The invention discloses a multi-instance domain name resolution caching method and device, equipment and a medium, and relates to the field of data processing. In the method, a corresponding DNS cache instance is configured for each network exit line; allocating a corresponding local monitoring port to each DNS cache instance, and associating each DNS cache instance with a primary upstream DNS server address; determining an initial exit line, and orienting a destination address of a DNS query request initiated by a user terminal to a first DNS cache instance and a target local monitoring port through policy routing; if it is determined that the first network outlet line currently used by the user terminal has a fault or is overloaded, determining a new network outlet line for the user terminal according to a preset switching strategy; and updating a policy route associated with the user terminal, and redirecting a destination address of a DNS query request subsequently initiated by the user terminal to a second DNS cache instance corresponding to the new network exit line. By implementing the technical scheme provided by the invention, the stability of the DNS analysis service is improved.

The present disclosure relates to a performance detection method, device, readable medium, and electronic device for a middle-layer application. The method comprises: receiving a performance detection instruction for instructing to detect the performance of the middle-layer application; obtaining performance indicator parameters of the middle-layer application when the middle-layer application is in a running state, wherein the middle-layer application is capable of processing requests sent by an upstream server and sending them to a downstream server and receiving results returned by the downstream server when the middle-layer application is in a running state; and detecting the performance of the middle-layer application based on the performance indicator parameters and the abnormal conditions corresponding to each preset abnormality type. In this way, by directly matching the obtained performance indicator parameters with the abnormal conditions corresponding to each preset abnormality type, the performance detection results of the middle-layer application can be accurately obtained, thereby improving the degree of automation of the performance detection of the middle-layer application and thereby improving the efficiency of the performance detection of the middle-layer application.

The application relates to the technical field of network authentication, and discloses an identity authentication system and method, a server, computer equipment and a storage medium, the system comprising an identity authentication module, a downstream server and a delegation authentication module; the identity authentication module is used for synchronizing first user authentication information in an upstream server to the downstream server; the downstream server is a lightweight directory access server of a first application system; the upstream server is a lightweight directory access server of a second application system; the downstream server is configured to send a delegation request to the delegation authentication module when user data is from the first user authentication information; and the delegation authentication module is used for sending an authentication request to the upstream server after receiving the delegation request, the authentication request instructing the upstream server to authenticate the user data. The system provided by the application can enable different application systems to access other application systems using the same set of passwords while ensuring the information security of the upstream server.

The invention provides a gateway method, device and equipment for a proxy server and a medium. The method comprises the following steps: an HTTPS proxy server receives an HTTPS request of a user; the HTTPS request is received, the header of the HTTPS request is verified, and the header comprises a signature; verifying whether the signature is correct or not; if the signature is correct, entering the step 3, and if not, refusing the HTTPS request; forming a character string according to the header, storing the character string in an LRUMap dictionary, and rejecting the HTTPS request if the character string exists; if the character string does not exist, receiving the HTTPS request; according to the method, the upstream server address is obtained from the headers, and the traffic is forwarded to the upstream server address, so that the security of the back-end server is improved, malicious requests and frequent repeated requests can be effectively prevented, the security of the system is improved, and normal services are ensured not to be interrupted.

The application relates to the technical field of network communication, in particular to a DNS hierarchical cache resolution acceleration method and system based on a prefetch mechanism, which comprises the following steps: constructing a hierarchical cache model, including a client layer, a local DNS server layer and an upstream DNS server layer, and caching the resolved domain names and corresponding resolution results into the cache of each layer; receiving a DNS request of a terminal user, judging whether the request hits the cache, and taking corresponding operation; collecting historical query logs, combining a real-time network topology-aware prefetch mechanism to predict the next DNS request and cache the resolution result of the domain name in the local DNS server layer in advance; adopting a cross-layer collaborative cache updating mechanism to ensure that the cache data of different layers is synchronously updated; and introducing a symmetric encryption algorithm and a TLS protocol to guarantee the security of data in the storage and transmission process. The application accelerates the response of DNS resolution through the prefetch mechanism and the hierarchical cache.

A multi-instance domain name resolution cache method, device, equipment and medium are provided, and relate to the field of data processing. In the method, a corresponding DNS cache instance is configured for each network exit line; a corresponding local listening port is allocated for each DNS cache instance, and each DNS cache instance is associated with a primary upstream DNS server address; an initial exit line is determined, the destination address of a DNS query request initiated by a user terminal is directed to a first DNS cache instance and a target local listening port through policy routing; if it is determined that the first network exit line currently used by the user terminal fails or is overloaded, a new network exit line is determined for the user terminal according to a preset switching strategy; the policy routing associated with the user terminal is updated, and the destination address of a DNS query request subsequently initiated by the user terminal is redirected to a second DNS cache instance corresponding to the new network exit line. The technical solution provided in the application improves the stability of DNS resolution services.