Did you generate the RSA key with the changeit password? Did you uncomment
the section with 8443 port configuration? Did you wait long enough for the
server to start (tail -f the catalina.out log and wait for it to see 8443
has started). What is in the catalina.out log? Any errors? On IBM AIX I
had to change the protocol to IbmX503 and use SSL instead of TLS. Try
changing TLS to SSL (see the section for configuring 8443 to do this).