I'm using the last ispconfig on my Debian (fully up2date) server. It has a Intel(R) Xeon(R) CPU X3220 @ 2.40GHz and 4GB of memory. My problem is that 1 of the websites I'm hosting is slowing down the complete webserver. when I disable the website everything is fast again. But I can't find the cause of it, the servers CPU and MEM usage is normal (I think): Code: top - 20:58:28 up 116 days, 8:54, 1 user, load average: 0.34, 0.46, 0.50 Tasks: 280 total, 2 running, 278 sleeping, 0 stopped, 0 zombie Cpu(s): 4.5%us, 1.1%sy, 0.0%ni, 94.4%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 3629296k total, 3490696k used, 138600k free, 68744k buffers Swap: 2650684k total, 644k used, 2650040k free, 2462484k cached It is only at night (18:00-22:00) when the site is having alot of visitors. Stats for this month: Monthly Statistics for October 2010 Total Hits 25720713 Total Files 13613694 Total Pages 2843599 Total Visits 370153 Total kB Files 244538092 Can you help me troubleshoot this problem? cause my websites are so slow at night... (other functions on the server like ssh and teamspeak are working fine).