SSL Port Check on Mac

Question

I have a MacBook Pro, and I want to see if a particular port, 8181, is indeed open and running SSL, as I have set in my GlassFish server.

Is there a command I can issue to see what is serving on which ports?

Answer 1

From the Terminal:

$ openssl s_client -connect localhost:8181

This will connect to the localhost port 8181 using SSL.

Answer 2

netstat -ltnp

Answer 3

netstat -tulpn

But I have no experience with it, just guessed.

Answer 4

If it is publicly accessible, you can try online at http://www.sslshopper.com/ssl-checker.html

Just specify the port after the colon (126.128.791.151:8081)