Security logs

[Leo Lapousterle]

Hello,

I tried to get this information by myself (lists, google, man pages), but I
can't find something that answer totally to my question :

Is there a file where informations about how many users had attempted to
log into the system, successfully or not?

If not, is there a way to store these informations somewhere, by activating
some security routines or putting some script around?

Thanks a lot everyone,


-- 
Léo Lapousterle - Paris, France.