Hi Selvi, selvi wrote: > Hello All, > > I am in the process of integrating squid-3.0.STABLE1 with Python based > ICAP Server. Here, i am not able to get the response modification. Is it a custom ICAP server? > > ICAP related configurations given are: > > icap_enable on > icap_send_client_ip on > icap_service content respmod_precache 0 icap://<IP Address>:1344/respmod > icap_class class_1 content > icap_access class_1 allow all > > I am not seeing any error messages in the ICAP Server side. Squid also > behaves normally except the following message in cache.log > "essential ICAP service is invalidated by reconfigure: icap://<IP > Address>:1344/respmod [down,gone,!opt]". But when i perform some web > access through ICAP enabled squid proxy, empty page is displayed (the > browser displays nothing). > This message means that the squid tried to send an options request to the ICAP server and the ICAP server answer was not correct (or just did not like to the squid) I am suggesting to enable debug for ICAP client in squid3: debug_options 93,9 0,9 And search in debug messages to see what they say about. You can also post the debug messages here. Also grabbing the conversation between squid and ICAP server using wireshark or similar tool will be helpful... Regards, Christos > The same setup with squid-2.5.STABLE13 works properly (the page is > displayed). > > What could be the problem? > > Thanks for your assistance. > > Thanks > Selvi