Security Basics: Blocking GoToMyPC

["Brandon Slice" <bslice () backroads net>]

What is the easiest way to block GoToMyPC?  I do not want employees either working on their home machines from work, or 
opening up the network by bypassing the firewall.  
I think from reading GoToMyPC's website the remote machine must login into one of the servers, then the client connect 
to the GoToMyPC server and the server relays commands to the remote machine.  Also I think I read that GoToMyPC uses 
HTTP and other protocols that normally the firewall allows through.  

One idea that we had was to put a phony DNS entry into our DNS server for the GoToMyPC domain, to send that traffic to 
a non-existent IP on our network.  Would this work?  What would be the major problems with it?

What about disallowing access to any ip that on a reverse DNS lookup falls into the GoToMyPC domain?

Thanks for your time,
Brandon 



 
                   

---------------------------------------------------------------------------
Forum Systems PRESIDIO: PGP / XML GATEWAY APPLIANCE
The Presidio integrates PGP data encryption and XML Web Services security to 
simplify the management and deployment of PGP and reduce overall PGP costs 
by up to 80%.
FREE WHITEPAPER & 30 Day Trial - 
http://www.securityfocus.com/sponsor/ForumSystems_security-basics_031027 
----------------------------------------------------------------------------