Unable to determine IP address from host name for ….

[emidemi]

Hi
I Installed the Packages squid and squidGuard and i enable Transparent proxy from Proxy server and the Proxy filter
it block my blacklisk correctly.

but to a few unblock site i have the massage:

The requested URL could not be retrieved

While trying to retrieve the URL: http://www.*******.com/

The following error was encountered:

Unable to determine IP address from host name for www.*******.com

The dnsserver returned:

Refused: The name server refuses to perform the specified operation.

This means that:

The cache was not able to resolve the hostname presented in the URL.
Check if the address is correct.

Your cache administrator is ##################.

[rjcrowder]

What is the question?

[emidemi]

The sites i got the message from browser is not in my blacklist.
What will i do to have access to these?

[rjcrowder]

@emidemi:

The sites i got the message from browser is not in my blacklist.
What will i do to have access to these?

First check if you are able to resolve them without using Squid…

Not sure if this is your problem or not, but I had some issues with certain sites relating to ipv6. There is an option on the GUI to resolve ipv4 first... solved my problem.

[emidemi]

thank you rjcrowder for your time.

I find the solution, the sites i got the massage was host in my vpn network and i should check the option "Disable DNS Rebinding Checks" at menu System->Advanced->Admin Access