It sounds easier to do the DNS approach, also mentioned in the link.

 - BS


On Thu, Jun 14, 2012 at 10:13 PM, Gudy <jazzcommunication@gmail.com> wrote:
Thank you Dick for the tip i will try to get it implemented,it seems to be
a huge problem to keep vital company information secure



On Fri, 15 Jun 2012 05:50:54 +0700, Dick Middleton <dick@fouter.net> wrote:

> On 06/13/12 14:27, Gudy wrote:
>
>> I have no idea how to block this
>>
>> If one of you have a solution,please let me know
>
> It seems it uses ports 80/443 (http/https) ports and so is hard to block
> with
> firewall.  Seems you need to use squid.  I got that from this link:
>
> http://forum.pfsense.org/index.php/topic,22632.0.html
>
> It's a start anyway
>
> Dick
>
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