Internet Monitoring & Control tools
Solution 1:
See the solutions in these questions (I've included some of the top suggestions, where they are packages):
How do I limit internet bandwidth?
wondershaper
trickle
How to limit internet speed?
- wondershaper with mastershaper front-end
Monitoring of Network
-
snmpd
-
cacti
How can you monitor internet data usage?
-
ntop
How do I find out which process is eating up my bandwidth?
- iptraf
- nethogs
- iftop