Hi,
i think u need to download putty at
http://www.putty.org/connect to the server that servs BigBlueButton,
try comand:
sudo bbb-conf --secret
...or locate /var/lib/tomcat6/webapps/bigbluebutton/WEB-INF/classes/bigbluebutton.properties
use vi like:
vi /var/lib/tomcat6/webapps/bigbluebutton/WEB-INF/classes/bigbluebutton.properties
or use nano if u can:
sudo apt-get install nano
nano /var/lib/tomcat6/webapps/bigbluebutton/WEB-INF/classes/bigbluebutton.properties
and find:
bigbluebutton.web.serverURL=
securitySalt=