RE: Configure SSL under Tomcat 7

[ayouB __]

Hi every body & happy new spring ^^
 
Well, i'm asking you again to tell me please what's the purpose of these files 
: localhost.crt & localhost.key in the last example in this link : 
http://tomcat.apache.org/tomcat-7.0-doc/apr.html, i wanna just know from where 
& how did they get it (is there any command which permit to generate such files 
with such extensions)?!!
 
Thanks.