Вот что говорит сквид:
2014/06/04 18:13:17| WARNING: Squid got an invalid ICAP OPTIONS response from service icap://192.168.11.2:1344/request; error: unsupported status code of OPTIONS response
2014/06/04 18:13:17| optional ICAP service is down after an options fetch failure: icap://192.168.11.2:1344/request [down,!valid]
2014/06/04 18:13:17| WARNING: Squid got an invalid ICAP OPTIONS response from service icap://192.168.11.2:1344/response; error: unsupported status code of OPTIONS response
2014/06/04 18:13:17| essential ICAP service is down after an options fetch failure: icap://192.168.11.2:1344/response [down,!valid]А вот это икап:
04/Jun/2014:18:22:17 +0700, 192.168.11.2 192.168.11.1 OPTIONS request 404
04/Jun/2014:18:22:17 +0700, 192.168.11.2 192.168.11.1 OPTIONS response 404