Cacti already monitor SNMP. i was looking for the exact SNMP strings you might think help me monitor router's bottle-necks , NIC's IO buttle-necks, cpu wait for IO, squid wait for... (actually, i monitor some hardware with SNMP. but i did not include it in the report.) thanks :-) <div class="gmail_quote">On Sat, Jun 21, 2008 at 9:23 PM, Les Mikesell <<a href="mailto:lesmikesell@gmail.com">lesmikesell@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> <div><div></div><div class="Wj3C7c">Nadav Kavalerchik wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> we have 16 ltsp servers deployed in our district (Israel, Petach Tikwa). for smaller computer lab with maximum 24 terminals we use Core2Duo+2GB RAM setup and for 48/72 terminals (in a school) we use Quad+4GB RAM setup. i picked up two schools and extracted some graphs (generated by Cacti) from the last year, showing both server's setups. i also have sar statistics that are more fine if anyone cares to go through. (it 10MB gz data each) and (i use ksar to view it. great tool btw) <a href="http://docs.google.com/Doc?id=dfs4fjnj_190f58h9xfs" target="_blank">http://docs.google.com/Doc?id=dfs4fjnj_190f58h9xfs</a> what i always like to know about the servers is how much the cpu waits for IO or the NICs for buffers to fill ? and if the proxy needs more memory and does it get the web content fast enough... ? is samba's file sharing is optimized ? if any of you have any ideas how to monitor those bottle-necks please enlighten me :-) i love to get more quality stats next year. </blockquote> </div></div> It might be overkill for this, but OpenNMS (<a href="http://www.opennms.org" target="_blank">http://www.opennms.org</a>) will monitor the things that snmp reports - and your router and switches as well if they support snmp. They have a yum repository that makes it fairly easy to install now. -- Les Mikesell <a href="mailto:lesmikesell@gmail.com" target="_blank">lesmikesell@gmail.com</a> _______________________________________________ K12OSN mailing list <a href="mailto:K12OSN@redhat.com" target="_blank">K12OSN@redhat.com</a> <a href="https://www.redhat.com/mailman/listinfo/k12osn" target="_blank">https://www.redhat.com/mailman/listinfo/k12osn</a> For more info see <<a href="http://www.k12os.org" target="_blank">http://www.k12os.org</a>> </blockquote></div>