Open SSL provides a utility to test the SSL handshake and check what certificates are returned by a web-server. You can use the following command:
openssl s_client –connect cas.borland.com:443
A simple Java program can test the SSL connection:
package com.microfocus.cloud.audit; import javax.net.ssl.SSLSocket; import javax.net.ssl.SSLSocketFactory; import java.io.*; /** Establish an SSL connection to a host and port, writes a byte and * prints the response. See * http://confluence.atlassian.com/display/JIRA/Connecting+to+SSL+services */ public class SSLPoke { public static void main(String[] args) { if (args.length != 2) { System.out.println("Usage: "+SSLPoke.class.getName()+" <host> <port>"); System.exit(1); } try { SSLSocketFactory sslsocketfactory = (SSLSocketFactory) SSLSocketFactory.getDefault(); SSLSocket sslsocket = (SSLSocket) sslsocketfactory.createSocket(args[0], Integer.parseInt(args[1])); InputStream in = sslsocket.getInputStream(); OutputStream out = sslsocket.getOutputStream(); // Write a test byte to get a reaction :) out.write(1); while (in.available() > 0) { System.out.print(in.read()); } System.out.println("Successfully connected"); } catch (Exception exception) { exception.printStackTrace(); } } }