Hello, I've configured Squid to filter HTTP trafic with ClamAV using ICAP. And the result is pretty bad : loading a simple page takes ages. When I disable ICAP in squid.conf, all is fine. Can someone share his/her configuration with me so that I can compare both ? Here is the Squid 3.1.9's ICAP configuration icap_enable on icap_send_client_ip on icap_send_client_username on icap_client_username_encode off icap_client_username_header X-Authenticated-User icap_preview_enable on icap_preview_size 1024 icap_service service_req reqmod_precache bypass=1 icap://127.0.0.1:1344/squidclamav adaptation_access service_req allow all icap_service service_resp respmod_precache bypass=1 icap://127.0.0.1:1344/squidclamav adaptation_access service_resp allow all Here is C-ICAP config file : PidFile /var/run/c-icap/c-icap.pid CommandsSocket /var/run/c-icap/c-icap.ctl Timeout 300 MaxKeepAliveRequests 100 KeepAliveTimeout 600 StartServers 3 MaxServers 10 MinSpareThreads 10 MaxSpareThreads 20 ThreadsPerChild 10 MaxRequestsPerChild 0 Port 1344 ServerAdmin you@your.address ServerName YourServerName TmpDir /var/tmp MaxMemObject 131072 DebugLevel 1 ModulesDir /usr/local/c_icap/lib/c_icap ServicesDir /usr/local/c_icap/lib/c_icap TemplateDir /usr/local/c_icap/share/c_icap/templates/ TemplateDefaultLanguage en LoadMagicFile /usr/local/c_icap/etc/c-icap.magic RemoteProxyUsers off RemoteProxyUserHeader X-Authenticated-User RemoteProxyUserHeaderEncoded on ServerLog /servers/icap/logs/server.log AccessLog /servers/icap/logs/access.log Module logger sys_logger.so Logger sys_logger Service squidclamav squidclamav.so ServiceAlias avscan squidclamav?allow204=on&sizelimit=off&mode=simple Service echo srv_echo.so sys_logger.Facility local7 Thanks Christian