About a year or two ago, someone developed a hack that allowed you to communicate IP data over DNS requests and responses. It involves having a special DNS gateway somewhere in the internet that recognizes this hack, extracts the data from the DNS request and forwards to the network, and takes responding IP packets and encodes them as DNS responses. Originally this hack was used to obtain free dial-up IP services.
Many "for fee" hotspot providers allow wireless users to obtain an IP address and do DNS hostname lookups. Does anyone know whether the above hack would work with current hotspot providers? Or better yet, are there any firewall products out there that catch this type of DNS abuse? -- general wireless list, a bawug thing <http://www.bawug.org/> [un]subscribe: http://lists.bawug.org/mailman/listinfo/wireless
