network usage monitoring via console & generic apps
 

something is bogging down the connection over here. can I make use of netstat er something installed by default (or at least well know and considered standard) to check to see what the hell is slowing it down?

use `netstat -an --program` and look for a unusual program linked to an open connection
this is not to see who use the bandwith especially but at least you can list the program who open connection .
look with tcpdump if installed if the ip linked to the suspected program send a lot of packet(i think the line should be `tcpdump -i interface | grep "suspected_IP"`