On 8/11/2015 2:28 p.m., 聡司蛭田 wrote: > > communication flow is the following. > > Squid Proxy -> IGW ->IGW->ELB-> Server(EC2) > Ah. Okay then you can ignore my message about loops. I had misread your description as meaning the ELB sent to Squid, not in front of some other server. The thing to find out then is why the Squid machine cannot open direct TCP connections to port 443 on the ELB. Amos _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users