Can we monitor internet usage of the multiple users?

[prabakaran]

Hi,

I have a situation to monitor internet usage of each user's in my network. Can we identify the usage of the internet and send critical message when exceeding some level ?
How can I find top internet utilizer ? Suggest me to resolve this.

Thanks,
Prabakaran.R

[abrist]

Are the users on separate hosts on the network? What type of OS is running on the user's systems?

[wezelboy]

If your router/switch supports snmp you can use check_snmp_netint.pl and either have a separate service check for each interface or just have one service check that will gather info on all the interfaces. You can use a nagios grapher (I use pnp4nagios) to graph the performance data.

You could query the hosts directly over snmp, but Windows hosts will give you problems at higher bandwidths. It's better to get the info from the switch.

[abrist]

@Wezelboy: Thanks for the suggestions. We first need to know if the OP needs user-level statistics or workstation-level stats.