I used to do this all the time over port 53.
My closest coffee shop would allow people to access Wi-Fi only if you gave them full access to your Facebook account. DNS was the only port open to the outside world.
My closest coffee shop would allow people to access Wi-Fi only if you gave them full access to your Facebook account. DNS was the only port open to the outside world.
What the???
Terms of service had wording that made mining all data in your Facebook account sound like the intent.
large responses == some DNSSEC, some IPv6