Downloading the Certificate from an SSL Site

Sometimes this is very useful– you point the below code to a server and get the configured SSL certificate in return. After that you could import the cert into the local store or save it as a file (via the RawData property).

public static X509Certificate2 DownloadSslCertificate(string machinename, int port)
    using (TcpClient client = new TcpClient())
        client.Connect(machinename, port);

        SslStream ssl = new SslStream(client.GetStream());

        return new X509Certificate2(ssl.RemoteCertificate);


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