How to limit the maximum number of connections in Nginx server

Limit the maximum number of connections

Set limit_conn_zone in the http module and outside the server module, and you can set the connected IP

Set limit_conn in the http, server or location module , you can set the maximum number of IP connections

For example:

limit_conn_zone $binary_remote_addr zone=addr:5m; limit_conn addr 1;

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