I have been trying to troubleshoot a problem for over a week now, and have resisted posting to the list in the vain hope I'll work it out myself - however I am having no luck.
The problem is that during busy periods many pages are being displayed with many broken images & frequently the browser (IE6) displays the "Cannot find server or DNS error" message. I am running Squid2.5STABLE6 on a Red Hat 9 (2.4.20-31.9smp kernel) in an organisation which has approx 2500 users. Average req/sec is about 80req/sec and peaks at 190req/sec during lunchtime. The server is an IBM x345 with 2.5Gb RAM, 98Gb cache (only 16Gb used so far), dual 2.4Ghz Xeon processors, with an Intel Pro 1000 connected to a 1Gb switch. I am doing content filtering with SquidGuard, NTLM authentication with winbind from Samba 2.2.10 and wb_ntlmauth and external ACLs using wb_group I have googled and searched the list archives, but there is nothing terribly recent that I can find. I don't know if this is relevant, but /proc/net/sockstat shows up to 5000 TCP sockets in TIME_WAIT state in peak times. Any suggestions to what may be causing this would be greatly appreciated. Regards, Rob Hadfield
