Run SuperSocket behind proxy or load balancer.

Chinese (China)

Keywords: Proxy, Load Balancer

Running SuperSocket behind a proxy or load balancer is common for security and availability reasons. In this setup, the client of SuperSocket is typically the proxy, load balancer, or another front-end service, making it challenging for the SuperSocket application to identify the true origin of connections. However, SuperSocket offers the capability to retrieve the real remote endpoints of these connections.

Enable Proxy Protocol V1/V2

Reference: https://www.haproxy.org/download/1.8/doc/proxy-protocol.txt

Enable Proxy Protocol by API

var host = SuperSocketHostBuilder.Create<MyPackage, MyPackageFilter>(args)    
    .ConfigureSuperSocket(options =>
    {
        options.Name = "CustomProtocol Server";
        options.EnableProxyProtocol = true;
    }).Build();

Enable Proxy Protocol by settings

appsettings.json

{
    "serverOptions": {
        "name": "TestServer",
        "enableProxyProtocol": true,
        "listeners": [
            {
                "ip": "Any",
                "port": 4040
            }
        ]
    },
    "AllowedHosts": "*"
}

Access the connection's real remote endpoint

// AppSession session

session.RemoteEndPoint

or

(session as IAppSession).Connection.ProxyInfo?.SourceEndPoint