By limiting the number of simultaneous connections, the reverse-proxy can prevent a single client or group of clients from overloading the server with too many simultaneous requests.
it helps in ensuring fair use of server resources among all clients.
By preventing any single client from monopolizing connection resources, it ensures that the server remains available and responsive to other clients, promoting a more equitable distribution of server capacity.
This feature can be an effective measure against certain types of Denial of Service (DoS) attacks, particularly those that attempt to exhaust server resources by a high number of simultaneous connections.
By imposing a connection limit, the server can reject excessive connection attempts from certain clients, thus reducing the impact of such attacks.
General settings
section, click on Limits link to open the global parameters sectionNumber of connection per IP
field