http://www.cert.org/current/current_activity.html

mentions an increase in the amount of scans of sshd. It links to an advisorry about sshd

I am a newbie, but running openSSH instead of telnet. It looks like v2.9pr2 might be vulnerable to attack. I changed in my /etc/ssh/sshd_config from:

Protocol 2,1 to
Protocol 2
and changed my port to something really high that does not conflict with those listed at:
http://www.iana.org/assignments/port-numbers
http://www.opendoor.com/doorstop/ports.html

any advice? Other words of guidance?