On Thu, May 22, 2008 at 09:51:53PM +1200, Amos Jeffries wrote: > Ah, I thought it yes was 1 second or so, but a closer look at the > default show its 0 seconds unless set higher. > http://www.squid-cache.org/Versions/v3/3.0/cfgman/authenticate_ip_ttl.html I think that only holds if the max_user_ip ACL is used, which is not the case on my test system. > Yes the problem of multiple-users per IP is one to consider. Is there already an off-the shelf solution? Could squid send back an identification cookie to the client application and use that cookie to identify the user from then on, repeating the ident request like, once a minute? > What you mean by the statistics? I expect it drops the counters of ident > requests relative to the counters of authenticated requests, and lowers > the overall request service times (part of the idea right? faster > response times with less network load). Yes, but it'll also account requests to the wrong user if the ident valud associate with any IP address is cached at all without additional measures as soon as multiple users issue http requests from the same IP address in the same second (which can easily be the case for a multi-user system). I must be missing something here. Greetings Marc P.S. This is my config file, just in case it helps - it's just the config file from Debian testing with minor changes to activate ident lookups http_port 3128 hierarchy_stoplist cgi-bin ? acl QUERY urlpath_regex cgi-bin \? cache deny QUERY acl apache rep_header Server ^Apache broken_vary_encoding allow apache logformat squid %ts.%03tu %6tr %>a %ui %Ss/%03Hs %<st %rm %ru %un %Sh/%<A %mt access_log /var/log/squid/access.log squid hosts_file /etc/hosts refresh_pattern ^ftp: 1440 20% 10080 refresh_pattern ^gopher: 1440 0% 1440 refresh_pattern . 0 20% 4320 acl all src 0.0.0.0/0.0.0.0 acl manager proto cache_object acl localhost src 127.0.0.1/255.255.255.255 acl to_localhost dst 127.0.0.0/8 acl SSL_ports port 443 # https acl SSL_ports port 563 # snews acl SSL_ports port 873 # rsync acl Safe_ports port 80 # http acl Safe_ports port 21 # ftp acl Safe_ports port 443 # https acl Safe_ports port 70 # gopher acl Safe_ports port 210 # wais acl Safe_ports port 1025-65535 # unregistered ports acl Safe_ports port 280 # http-mgmt acl Safe_ports port 488 # gss-http acl Safe_ports port 591 # filemaker acl Safe_ports port 777 # multiling http acl Safe_ports port 631 # cups acl Safe_ports port 873 # rsync acl Safe_ports port 901 # SWAT acl purge method PURGE acl CONNECT method CONNECT http_access allow manager localhost http_access deny manager http_access allow purge localhost http_access deny purge http_access deny !Safe_ports http_access deny CONNECT !SSL_ports http_access allow localhost acl vmware_network src 192.168.8.0/24 http_access allow vmware_network http_access deny all http_reply_access allow all icp_access allow all ident_lookup_access allow vmware_network cache_effective_group proxy coredump_dir /var/spool/squid -- ----------------------------------------------------------------------------- Marc Haber | "I don't trust Computers. They | Mailadresse im Header Mannheim, Germany | lose things." Winona Ryder | Fon: *49 621 72739834 Nordisch by Nature | How to make an American Quilt | Fax: *49 3221 2323190