Hi, Now, I'am running with squid-2.5.STABLE8. If I do restart my box, squid always problem with ERR_DNS_FAIL in access.log. This can solve with restart daemon squid and everything is OK. But after a few day I get the some problem again, the solution restart again daemon squid. What going on here, can somebody explain to me what happen it is and how to fix this problem. Thanks You -- budsz