如何清除客户端.Net SSL会话缓存

清除客户端.Net SSL会话缓存的方法如下：

在客户端的代码中，使用以下代码清除SSL会话缓存：

System.Net.ServicePointManager.SecurityProtocol = System.Net.SecurityProtocolType.Ssl3 | System.Net.SecurityProtocolType.Tls;
System.Net.ServicePointManager.ServerCertificateValidationCallback = delegate { return true; };
System.Net.ServicePointManager.Expect100Continue = true;
System.Net.ServicePointManager.DefaultConnectionLimit = 9999;
System.Net.ServicePointManager.UseNagleAlgorithm = false;
System.Net.ServicePointManager.CheckCertificateRevocationList = false;
System.Net.ServicePointManager.EnableDnsRoundRobin = true;
System.Net.ServicePointManager.DnsRefreshTimeout = 0;
System.Net.ServicePointManager.MaxServicePointIdleTime = 0;
System.Net.ServicePointManager.MaxServicePoints = 9999;
System.Net.ServicePointManager.ReusePort = true;
System.Net.ServicePointManager.UseNagleAlgorithm = false;
System.Net.ServicePointManager.Expect100Continue = true;
System.Net.ServicePointManager.SecurityProtocol = System.Net.SecurityProtocolType.Tls12;
System.Net.ServicePointManager.ServerCertificateValidationCallback = delegate { return true; };

如果使用的是HttpClient类发送请求，可以使用以下代码清除SSL会话缓存：

System.Net.ServicePointManager.SecurityProtocol = System.Net.SecurityProtocolType.Ssl3 | System.Net.SecurityProtocolType.Tls;
System.Net.ServicePointManager.ServerCertificateValidationCallback = delegate { return true; };
System.Net.ServicePointManager.Expect100Continue = true;
System.Net.ServicePointManager.DefaultConnectionLimit = 9999;
System.Net.ServicePointManager.UseNagleAlgorithm = false;
System.Net.ServicePointManager.CheckCertificateRevocationList = false;
System.Net.ServicePointManager.EnableDnsRoundRobin = true;
System.Net.ServicePointManager.DnsRefreshTimeout = 0;
System.Net.ServicePointManager.MaxServicePointIdleTime = 0;
System.Net.ServicePointManager.MaxServicePoints = 9999;
System.Net.ServicePointManager.ReusePort = true;
System.Net.ServicePointManager.UseNagleAlgorithm = false;
System.Net.ServicePointManager.Expect100Continue = true;
System.Net.ServicePointManager.SecurityProtocol = System.Net.SecurityProtocolType.Tls12;
System.Net.ServicePointManager.ServerCertificateValidationCallback = delegate { return true; };

using (var httpClientHandler = new HttpClientHandler())
{
    httpClientHandler.ClientCertificateOptions = ClientCertificateOption.Manual;
    httpClientHandler.SslProtocols = System.Security.Authentication.SslProtocols.Tls12;
    httpClientHandler.ServerCertificateCustomValidationCallback = (message, cert, chain, errors) => { return true; };

    using (var httpClient = new HttpClient(httpClientHandler))
    {
        // 发送请求
    }
}

请注意，以上代码中的SSL协议类型和其他设置可能需要根据具体情况进行调整。

推荐的腾讯云相关产品：腾讯云SSL证书服务（https://cloud.tencent.com/product/ssl）