Network monitering for a small LanLocked
I work as IT support for a small Lan, roughly 50 users spread on three floors. The network is NT 4.0 with a Linux print server and two Macs for the marketing department. I’m looking for an inexpensive toll or set of tools to moniter network traffic, identify any bottlnecks, warn me of any computers or printers going offline and scan for any users installing software and opened ports. There must be some simple software out there desighned for the small network as all the one’s I’ve seen have been too expensive.