[ADMIN] postmaster is restarting

[Rodrigo Barboza]

Hi, guys.
I am using the script that comes with postgres installation to start and
stop my database.
When I stop the database, it restarts after some minutes.
I have looked through every path and I don't find who starts it again.
I am using Linux.
Is there some kind of signaling to for it to restart? Does anybody have any
tips where to find it?