Unable to determine IP address from host name for ….


  • 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 ##################.


  • What is the question?


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


  • @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.


  • 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