corporate firewall from an end user prospective

[T o n g <mlist4suntong@yahoo.com>]

Hi,

The place that I work now block standard outbound ssh (and ftp) port 
connections. I'm wondering, for a "standard" corporate firewall practice, 
do they selectively block outbound ports, or do they selectively open 
them. 

>From an end user prospective, is there any way I can know which outbound 
port is not blocked that I can make use of? 

Thanks

-- 
Tong (remove underscore(s) to reply)
  http://xpt.sourceforge.net/techdocs/
  http://xpt.sourceforge.net/tools/