Greetings, On Mon, Feb 1, 2010 at 3:38 PM, MOKRANI Rachid <Rachid.MOKRANI at ifp.fr> wrote: > I need to monitor a workstation (Centos 5 x86_64). > > I need to obtain informations about : > > - cpu utilization per user, per a period, how many days per user, > > Any ideas about a good and simple free tool ? Perhaps an overkill, but the mention of NAGios prompted me to suggest this: Zabbix But a fairly integrated piece of work and can scale CentOS 5 http://andrewfarley.com/sysadmin/zabbix-rpms-updated-to-1-8-1-in-my-repository Some users were wondering if that could be hosted in RPM forge or similar HTH Regards Rajagopal