Connection establishment method, system and device and storage medium

Abstract

The embodiment of the invention provides a connection establishment method and system, equipment and a storage medium. The method comprises the following steps: receiving connection request information sent by a client; wherein the connection request information carries proxy information; when the first kernel module exists, the proxy information is ignored, and a connection response is fed back to the client based on the connection request information so as to establish connection with the client; and when the client has the second kernel module, acquiring the proxy information through the second kernel module to participate in corresponding processing, and feeding back a connection response to the client based on the connection request to establish connection with the client. According to the scheme, a plurality of different types of back-end servers can be contained in the load balancing cluster at the same time, and the protocol content is inserted into the first handshake message, so that the connection of the back-end servers which do not support the proxy protocol cannot be negatively influenced; and meanwhile, the requirement of establishing connection with a back-end server supporting a proxy protocol can be met, and diversified connection requirements can be met.

Description

technical field [0001] The present application relates to the computer field, and in particular to a connection establishment method, system, device and storage medium. Background technique [0002] Load balancing SLB (Server Load Balancer) is a service that distributes traffic on demand. It expands the throughput of the application system by distributing traffic to different back-end servers, and can eliminate single points of failure in the system and improve application performance. System availability. [0003] However, in some scenarios, FNAT conversion is performed on the client IP address, and the backend server cannot directly obtain the real IP of the client. The source information (source IP, destination IP, source port, destination port, etc.) is added to the TCP data packet header through the proxy protocol (Proxy Protocol), so that the back-end server can obtain the source information. However, some back-end servers in some load balancing clusters do not suppo...

AI Technical Summary

Problems solved by technology

However, some back-end servers in some load balancing clusters do not support the proxy protocol. If the client and the load balancer cannot distinguish which back-end servers do not support the proxy protocol, if the data packet carrying the proxy protocol is sent to For the backend server that does not support the proxy protocol, it will cause the data parsing failure of the backend server that does not support the proxy protocol

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