Perhaps you have 'res-css.mail.xx.com' defined twice in your acl config? > -----Original Message----- > From: J. Peng [mailto:peng.kyo@xxxxxxxxx] > Sent: February 21, 2008 11:49 PM > To: squid-users@xxxxxxxxxxxxxxx > Subject: subdomain error > > Hello, > > My squid for reverse proxy has the config like: > > cache_peer 172.23.147.30 parent 80 0 no-query > originserver name=RES > acl service_res dstdomain res.mail.xx.com res_css.mail.xx.com > res_js.mail.xx.com res_img.mail.xx.com res-css.mail.xx.com > res-css.mai l.xx.com res-js.mail.xx.com res-img.mail.xx.com > acl service_res dstdomain r7.mail.xx.com r7_css.mail.xx.com > r7_js.mail.xx.com r7_img.mail.xx.com r7-css.mail.xx.com > r7-js.mail.xx.co m r7-img.mail.xx.com cache_peer_access RES > allow service_res > > > When I stop and start Squid I get the warnings in screen: > > 2008/02/22 14:44:35| WARNING: 'res-css.mail.xx.com' is a > subdomain of 'res-css.mail.xx.com' > 2008/02/22 14:44:35| WARNING: because of this > 'res-css.mail.xx.com' is ignored to keep splay tree searching > predictable > 2008/02/22 14:44:35| WARNING: You should probably remove > 'res-css.mail.xx.com' from the ACL named 'service_res' > > > My squid seems to work well though. But why this happened? thanks.