Hello, The question is, why are you even allowing external IPs access to your Squid server? If this is for internal use you should firewall it appropriately sorry, I have done the Deny. now nobody is able to connect any more by Internet. I solved the problem. but I wonder if it was appear only ips address that logs how they had been authenticated ? it's very strange thanks 2012/8/2 Alex Crow <alex@xxxxxxxxxxxxxxx>: > On 02/08/12 15:25, Usuário do Sistema wrote: >> >> Hi, today wake up me more an doubt. >> >> 795035 112.215.36.175 TCP_MISS/200 96944 >> >> GEThttp://ads.xlxtra.com%2Ferrors%2F%3Ftype=404@xxxxxxxxxxxxxx/pictures/9612330624e58d492b8555.jpg >> -DIRECT/74.204.173.205 image/jpeg > > > The question is, why are you even allowing external IPs access to your Squid > server? If this is for internal use you should firewall it appropriately. > > > Alex