Hi Liley, I have managed to find the Redhat kernel settings that I used on this Squid server. http://squid-web-proxy-cache.1019090.n4.nabble.com/file/n4499196/tcp-tweak-squid-bl460.txt tcp-tweak-squid-bl460.txt Please note that these settings were based on the resources available in the server, a quick recap... HP BL460c G6 2x Intel Xeon (Quad-core) 24GB RAM 2x 72GB SAS (HW RAID-1) 2x 2Gig Port Channel (w/ OS NIC bonding) Redhat 5 Squid 2.7 The MAX CPU usage I recall was no more than 25% (at full capacity) Cache mem was set at around 768MB, higher values were tested but this seemed to work best. Max obj size in memory was set to 2048KB Max conn per second was ~2000, above this external factors came into play (i.e. capacity on the PCI bus of the DDoS device, max throughput on the firewall etc) I'll try and find the Squid config to post up as that will be a lot more useful to you. ----- Follow me on... My Blog Twitter LinkedIn Facebook -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/RPS-tp4480226p4499196.html Sent from the Squid - Users mailing list archive at Nabble.com.