Newbie

[Nasir Mahmood]

Hello,
I am new to Freebsd 4.9

Have been in Linux Since last 4 years  and just trying Freebsd for 
experience.
I need some details to work with FreeBSD.

Where all daemons are started from, like all daemon in Linux (Redhat) 
are mostly started from /etc/rc.d/
Where I can add/removed packages.

If let say I install  sendmail .Where should I place it's startup script 
so that  at every reboot the sendmail must be started  and runningt.

Where are the scripts to run/stop server daemon. I need this .

Regards,

Nasir Mahmood.