How to configure nginx to limit the access frequency of the same IP

1. Add the following code to http{} in nginx.conf:

limit_conn_zone $binary_remote_addr zone=perip:10m;

limit_conn_zone $server_name zone=perserver:10m;

2. Add the following code to the server{} configuration of the website that needs to limit the number of concurrent connections and download bandwidth:

limit_conn perip 2;

limit_conn perserver 20;

limit_rate 100k;

Supplementary explanation of the following parameters:

$binary_remote_addr is to limit the same client IP address;

$server_name is used to limit the maximum number of concurrent connections on the same server;

limit_conn is to limit the number of concurrent connections;

limit_rate is to limit the download speed;

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