System & processes monitoring recomendations?

[Bill Moran]

Anton Blajev - Valqk <valqk at lozenetz.org> wrote:
> 
> Hello Group,
> 
> I'm wondering what tool to use for system and processes monitoring?
> For example your disks goes filled and you get a mail,
> the machine has load over 50 for more than an hour and you get a mail...
> Some predefined processes MUST be running so there is some kind of a checker and if they stops
> the util starts them immediately.
> 
> Please share your experience with me?

Have a look at net-snmp.  It's in ports.

-Bill